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56-75-7

Basic Information
CAS No.: 56-75-7
Name: Chloramphenicol
Molecular Structure:
Molecular Structure of 56-75-7 (Chloramphenicol)
Formula: C11H12Cl2N2O5
Molecular Weight: 323.13
Synonyms: Acetamide, 2, 2-dichloro-N-[2-hydroxy-1- (hydroxymethyl)-2-(4-nitrophenyl)ethyl]- , [R-(R*,R*)]-;Tega-Cetin;Tevcosin;D(-)-threo-2-Dichloroacetamido-1-p-nitrophenyl-1,3-propanediol;Chlorocaps;D-(-)-threo-1-p-Nitrophenyl-2-dichloracetamido-1,3-propanediol;Isophenicol;Comycetin;Acetamide, 2, 2-dichloro-N-[.beta.-hydroxy-.alpha.- (hydroxymethyl)-p-nitrophenet hyl]-, D-threo-(-)-;CPh;Synthomycine;Anacetin;Amphicol;Acetamide, 2, 2-dichloro-N-[.beta.-hydroxy-.alpha.-(hydroxymethyl)-p-nitrophenet hyl]-,D-(-)-threo-;Mycinol;Synthomycetin;D-threo-N-(1, 1-Dihydroxy-1-p-nitrophenylisopropyl)dichloroacetamide;Leukomyan;Medichol;Otophen;Ophtochlor;Biocetin;D-(-)-Chloramphenicol;Chlorocid;Chloro-25 vetag;D-(-)-threo-alpha, alpha-Dichloro-N-(beta-hydroxy-alpha-(hydroxymethyl)-p-nitrophenethyl)acetamide;Chlomin;2,2-dichloro-N-[(1R,2R)-1,3-dihydroxy-1-(4-nitrophenyl)propan-2-yl]acetamide;Halomycetin;Enteromycetin;Ronphenil;Pantovernil;Myclocin;Cloramidina;Viceton;Levoplast;D-(-)-threo-2, 2-Dichloro-N-[.beta.-hydroxy-.alpha.-(hydroxymethyl)]-p-nitrophene thylacetamide;Cloramficin;Tifomycin;Austracol;Alficetyn;Chloricol;Paraxin;Dextromycetin;Chloramfilin;Soluthor;Cloromisan;Ismicetina;I 337A;Ciplamycetin;Chloroptic;Chloramphenicol Levo/palmitate/L-base;D-threo-Chloramphenicol;Chlorocol;Chlorocidin C;(-)-Chloramphenicol;Catilan;Chloramphenicol-levo;D-threo-N-Dichloroacetyl-1-p-nitrophenyl-2-amino-1,3-propanediol;Farmicetina;Biophenicol;Chloromycetin (TN);Chloroject L;Tiromycetin;Loromisin;Pentamycetin;Ambofen;Doctamicina;Cloramicol;2,2-Dichloro-N-(2-hydroxy-1-(hydroxymethyl)-2-(4-(hydroxy(oxido)amino)phenyl)ethyl)acetamide, (1R, 2R)-;;Chlomycol;Sintomicetina;GlovesGloveticol;Chlora-Tabs;Aquamycetin;2,2-dichloro-N-[(1S,2R)-1,3-dihydroxy-1-(4-nitrophenyl)propan-2-yl]acetamide;Chlorocide;Leukomycin;Acetamide,2,2-dichloro-N-[(1R,2R)-2- hydroxy-1-(hydroxymethyl)-2-(4-nitrophenyl)- ethyl]-;Oleomycetin;Klorocid S;Loromisan;Detreomycine;Hortfenicol;Chloramsaar;Novomycetin;Micochlorine;Normimycin V;Isicetin;Chlorovules;Prestwick_51;Sno-Phenicol;D-threo-1-(p-Nitrophenyl)-2-(dichloroacetylamino)-1,3-propanediol;Chlornitromycin;Rivomycin;Chloramficin;Clorosintex;Acetamide, 2, 2-dichloro-N-[.beta.-hydroxy-.alpha.-(hydroxymethyl)-p-nitrophenet hyl];Isopto fenicol;Desphen;Intramycetin;Levomitsetin;Tifomycine;Unimycetin;Microcetina;Mychel;Glorous;Detreomycin;Chloromax;Leukamycin;D-(-)-2, 2-Dichloro-N-(.beta.-hydroxy-.alpha.-(hydroxymethyl)-p-nitrophenyl -ethyl)acetamide;Chemicetin;Chemicetina;Chloromycetin;Novophenicol;Levomycetin;
EINECS: 200-287-4
Density: 1.547 g/cm3
Melting Point: 148-150 °C(lit.)
Boiling Point: 644.913 °C at 760 mmHg
Flash Point: 343.831 °C
Solubility: 2.5 g/L (25 °C) in water
Appearance: White to grey-white crystalline powder
Hazard Symbols: ToxicT
Risk Codes: 45
Safety: 53-45
Transport Information: UN 2811
PSA: 115.38000
LogP: 1.82310
Synthetic route
116-54-1

dichloroacetic acid methyl ester

56-75-7

chloramphenicol

Conditions
ConditionsYield
In methanol at 23 - 40℃; for 9h; Inert atmosphere;97%
at 90℃; for 1h;80%
Amidation;74%
912296-93-6

2,2-dichloro-N-[1-hydroxymethyl-2-methoxy-2-(4-nitrophenyl)-ethyl]-acetamide

56-75-7

chloramphenicol

Conditions
ConditionsYield
With boron tribromide In dichloromethane at -20℃; for 12h;80%

diphenylmethyl (2S,3R)-2-(2,2-dichloroacetamido)-3-hydroxy-3-(4-nitrophenyl)propanoate

56-75-7

chloramphenicol

Conditions
ConditionsYield
With sodium tetrahydroborate In methanol at 0℃; for 1h; Inert atmosphere;80%
116-54-1

dichloroacetic acid methyl ester

294637-52-8

(4R,5R)-5-(4-nitrophenyl)-4-hydroxymethyl-1,3-oxazolidin-2-one

56-75-7

chloramphenicol

Conditions
ConditionsYield
Stage #1: (4R,5R)-5-(4-nitrophenyl)-4-hydroxymethyl-1,3-oxazolidin-2-one With sodium hydroxide In methanol; water at 25℃;
Stage #2: dichloroacetic acid methyl ester at 90℃; for 3h;
78%
Stage #1: (4R,5R)-5-(4-nitrophenyl)-4-hydroxymethyl-1,3-oxazolidin-2-one With sodium hydroxide In water for 0.5h; Reflux;
Stage #2: dichloroacetic acid methyl ester In water at 90℃; for 3h;
70%
382142-89-4

(2S)-(2,2-dichloroacetylamino)-(3R)-hydroxy-3-(4-nitrophenyl)-propionic acid ethyl ester

56-75-7

chloramphenicol

Conditions
ConditionsYield
With sodium tetrahydroborate In methanol at 0℃; for 0.5h;74%
3018-12-0

dichloroacetonitrile

(αR,2R)-α-(4-nitrophenyl)oxiranemethanol

56-75-7

chloramphenicol

Conditions
ConditionsYield
Stage #1: dichloroacetonitrile; (αR,2R)-α-(4-nitrophenyl)oxiranemethanol With sodium hydride In dichloromethane at 0 - 20℃; for 1h;
Stage #2: With boron trifluoride diethyl etherate In dichloromethane at -78 - 20℃; for 3h;
71%
123410-34-4

chloramphenicol

56-75-7

chloramphenicol

Conditions
ConditionsYield
With dimethylsulfide borane complex In tetrahydrofuran for 16h; Ambient temperature;70%
79-36-7

dichloroacethyl chloride

56-75-7

chloramphenicol

Conditions
ConditionsYield
With dichloro-acetic acid und anschliessend mit wss.Aceton bei pH8-9;
302-17-0

chloral hydrate

151-50-8

potassium cyanide

56-75-7

chloramphenicol

1768-31-6

pentachloroacetone

56-75-7

chloramphenicol

Conditions
ConditionsYield
With 1,4-dioxane
13916-40-0

bis-dichloroacetyl-amine

56-75-7

chloramphenicol

Conditions
ConditionsYield
With ethanol
872302-03-9

dichloroacetyl-phosphorous acid diethyl ester

56-75-7

chloramphenicol

Conditions
ConditionsYield
With methanol
With ethyl acetate

ethyl dichloroacidimidate hydrochloride

56-75-7

chloramphenicol

Conditions
ConditionsYield
With ethanol
34718-53-1

(1R,2R)-3-dichloroacetoxy-2-(2,2-dichloro-acetylamino)-1-(4-nitro-phenyl)-propan-1-ol

56-75-7

chloramphenicol

Conditions
ConditionsYield
With acetone
Conditions
ConditionsYield
durch Chromatographie an einer Lactose-Saeule;
With chiral stationary phase derived from aminated silica gel, L-2-(p-toluenesulfonamido)-3-phenylpropionyl chloride and dendrimer In methanol; water at 25℃; Resolution of racemate;
907579-60-6

dichloroacetic acid-[(5R)-4c-(4-nitro-phenyl)-2-oxo-[1,3]dioxan-5r-ylamide]

56-75-7

chloramphenicol

Conditions
ConditionsYield
With hydrogenchloride
115082-34-3

dichloroacetic acid-[(5R)-4c-(4-nitro-phenyl)-2ξ-oxo-2λ4-[1,3,2]dioxathian-5r-ylamide]

56-75-7

chloramphenicol

Conditions
ConditionsYield
With hydrogenchloride
116081-46-0

(1R,2R)-2-(2,2-dichloro-acetylamino)-1-(4-nitro-phenyl)-3-nitryloxy-propan-1-ol

56-75-7

chloramphenicol

Conditions
ConditionsYield
With methanol; iron(II) ammonium sulfate
With aminosulfonic acid; water; iron(II) sulfate
Conditions
ConditionsYield
ueber das O3-<3-Carboxy-propionyl>-Derivat;
76738-28-8

(R)-((R)-2-dichloromethyl-4,5-dihydro-oxazol-4-yl)-(4-nitro-phenyl)-methanol

56-75-7

chloramphenicol

Conditions
ConditionsYield
With acid Hydrolysis;
126109-35-1

threo (1R)-acetoxymethoxy-(2R)-dichloroacetamido-3-acetoxy-1-p-nitrophenylpropane

56-75-7

chloramphenicol

Conditions
ConditionsYield
With ammonium hydroxide In methanol
530-43-8

chloramphenicol Palmitate

A

56-75-7

chloramphenicol

B

57-10-3

1-hexadecylcarboxylic acid

Conditions
ConditionsYield
With borate buffer pH 7.5; lipase at 37℃; for 5h; Rate constant; also addition of β-cyclodextrin, chloramphenicol or palmitic acid, var. of polymorphic forms;

chloramphenicol palmitate β-cyclodextrin complex

A

56-75-7

chloramphenicol

B

57-10-3

1-hexadecylcarboxylic acid

Conditions
ConditionsYield
With borate buffer pH 7.5; lipase at 37℃; for 5h; Rate constant; also addition of chloramphenicol or palmitic acid, var. of polymorphic forms;

N-[2-(tert-butyl-dimethyl-silanyloxy)-1-hydroxymethyl-2-(4-nitro-phenyl)-ethyl]-2,2-dichloro-acetamide

56-75-7

chloramphenicol

Conditions
ConditionsYield
With tetrabutyl ammonium fluoride In tetrahydrofuran desilylation;
(1R,2R)-2-<2,2-dichloro-acetylamino>-1-<4-nitro-phenyl>-1,3-bis-nitryloxy-propane

(1R,2R)-2-<2,2-dichloro-acetylamino>-1-<4-nitro-phenyl>-1,3-bis-nitryloxy-propane

56-75-7

chloramphenicol

Conditions
ConditionsYield
With methanol; iron(II) ammonium sulfate
With aminosulfonic acid; water; iron(II) sulfate
With methanol; iron(II) chloride
(1R,2R)-2-<2,2-dichloro-acetylamino>-1-<4-nitro-phenyl>-3-nitryloxy-propane-1,3-diol

(1R,2R)-2-<2,2-dichloro-acetylamino>-1-<4-nitro-phenyl>-3-nitryloxy-propane-1,3-diol

56-75-7

chloramphenicol

Conditions
ConditionsYield
With methanol; iron(II) chloride
(2S,3R)-2-<2,2-dichloro-acetylamino>-3-hydroxy-3-<4-nitro-phenyl>-propionic acid-azide

(2S,3R)-2-<2,2-dichloro-acetylamino>-3-hydroxy-3-<4-nitro-phenyl>-propionic acid-azide

56-75-7

chloramphenicol

Conditions
ConditionsYield
With sodium tetrahydroborate; ethyl acetate
(2S,3R)-2-<2,2-dichloro-acetylamino>-3-hydroxy-3-<4-nitro-phenyl>-propionic acid ethyl ester

(2S,3R)-2-<2,2-dichloro-acetylamino>-3-hydroxy-3-<4-nitro-phenyl>-propionic acid ethyl ester

56-75-7

chloramphenicol

Conditions
ConditionsYield
With lithium aluminium tetrahydride; diethyl ether
3-nitro-1-palmitoyl-1H-1,2,4-triazole
1104640-94-9

3-nitro-1-palmitoyl-1H-1,2,4-triazole

56-75-7

chloramphenicol

530-43-8

chloramphenicol Palmitate

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran at 20℃; for 1h; regioselective reaction;100%
56-75-7

chloramphenicol

tert-butyldimethylsilyl chloride

tert-butyldimethylsilyl chloride

864529-25-9

chloramphenicol

Conditions
ConditionsYield
With 1H-imidazole In dichloromethane for 2h;99%
With 1H-imidazole In N,N-dimethyl-formamide for 19h; Ambient temperature;95%
With dmap; triethylamine In dichloromethane
693-38-9

vinyl palmitate

56-75-7

chloramphenicol

530-43-8

chloramphenicol Palmitate

Conditions
ConditionsYield
With palmitic acid imprinted Thermomyces lanuginosus Lypozyme TL 100L lipase nanogel In acetonitrile at 20℃; for 48h; Temperature; Concentration; Reagent/catalyst; Green chemistry; Enzymatic reaction; regioselective reaction;99%
With lipase encapsulated polyacrylamide nanogel In water; acetonitrile at 20℃; for 6h; Reagent/catalyst; Enzymatic reaction;99%
With Novozym 435 In acetonitrile at 20℃; for 3h; Inert atmosphere; Enzymatic reaction; regioselective reaction;91%
56-75-7

chloramphenicol

79-03-8

propionyl chloride

1304534-01-7

(1R,2R)-2-[(dichloroacetyl)amino]-1-(4-nitrophenyl)-3-(propanoyloxy)propyl propanoate

Conditions
ConditionsYield
With dmap; triethylamine In dichloromethane at 20℃; for 1h; Inert atmosphere;99%
56-75-7

chloramphenicol

75-36-5

acetyl chloride

10318-17-9

(1R,2R)-3-(acetyloxy)-2-[(dichloroacetyl)amino]-1-(4-nitrophenyl)propyl acetate

Conditions
ConditionsYield
With dmap; triethylamine In dichloromethane at 20℃; for 1h; Inert atmosphere;99%
56-75-7

chloramphenicol

98-59-9

p-toluenesulfonyl chloride

133227-81-3

Toluene-4-sulfonic acid (2R,3R)-2-(2,2-dichloro-acetylamino)-3-hydroxy-3-(4-nitro-phenyl)-propyl ester

Conditions
ConditionsYield
With pyridine for 2h; Ambient temperature;97%
56-75-7

chloramphenicol

644-97-3

Dichlorophenylphosphine

554-68-7

triethylamine hydrochloride

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran96%
56-75-7

chloramphenicol

49785-01-5

ortho-xylenyl phosphoryl chloride

Chloramphenicol ortho-xylenyl phosphate

Conditions
ConditionsYield
With 1,2,2,6,6-pentamethylpiperidine; C15H12F6N2O In dichloromethane at 20℃; for 4h; Inert atmosphere;96%
56-75-7

chloramphenicol

1,3-bis(2-hydroxy-3-chloropropyl)-6-methyluracil
195963-39-4

1,3-bis(2-hydroxy-3-chloropropyl)-6-methyluracil

C33H38Cl4N6O14

Conditions
ConditionsYield
With potassium carbonate In methanol at 60℃; for 8h;95%
56-75-7

chloramphenicol

35530-10-0

[(1R,2R)-2-amino-1-(4-nitrophenyl)propane-1,3-diol] hydrochloride

Conditions
ConditionsYield
With hydrogenchloride In water for 2h; Heating;93%
Multi-step reaction with 2 steps
1: pyridine; dioxane
2: HCl; diethyl ether; dioxane
View Scheme
With hydrogenchloride Heating;
112-16-3

n-dodecanoyl chloride

56-75-7

chloramphenicol

41658-74-6

(1R,2R)-2-[(dichloroacetyl)amino]-3-(lauroyloxy)-1-(4-nitrophenyl)propyl laurate

Conditions
ConditionsYield
With dmap; triethylamine In dichloromethane at 20℃; for 1h; Inert atmosphere;93%
4704-31-8

vinyl caprate

56-75-7

chloramphenicol

1303598-13-1

(2R,3R)-2-[(dichloroacetyl)amino]-3-hydroxy-3-(4-nitrophenyl)propyl decanoate

Conditions
ConditionsYield
With Novozym 435 In acetonitrile at 20℃; for 3h; Inert atmosphere; Enzymatic reaction; regioselective reaction;92%
With lipase cloned from Bacillus amyloliquefaciens In ethanol at 50℃; for 4h; Inert atmosphere; Enzymatic reaction; regioselective reaction;
56-75-7

chloramphenicol

2524-64-3

chlorophosphoric acid diphenyl ester

Chloramphenicol diphenyl phosphate

Conditions
ConditionsYield
With 1,2,2,6,6-pentamethylpiperidine; C15H12F6N2O In dichloromethane at 20℃; for 4h; Inert atmosphere;92%
56-75-7

chloramphenicol

98-80-6

phenylboronic acid

C17H15BCl2N2O5

Conditions
ConditionsYield
In acetonitrile at 20℃; for 18h; Inert atmosphere;92%
56-75-7

chloramphenicol

112-67-4

n-hexadecanoyl chloride

530-43-8

chloramphenicol Palmitate

Conditions
ConditionsYield
With pyridine In N,N-dimethyl-formamide; toluene at -4 - 5℃; for 4.83333h; Solvent;91.9%
With pyridine
With benzene
With benzene unter Zusatzt von Pyridin;
56-75-7

chloramphenicol

108-24-7

acetic anhydride

10318-17-9

(1R,2R)-3-(acetyloxy)-2-[(dichloroacetyl)amino]-1-(4-nitrophenyl)propyl acetate

Conditions
ConditionsYield
With pyridine at 0 - 20℃;91%
With pyridine
2146-71-6

vinyl laurate

56-75-7

chloramphenicol

16255-46-2

(2R,3R)-2-[(dichloroacetyl)amino]-3-hydroxy-3-(4-nitrophenyl)propyl laurate

Conditions
ConditionsYield
With Novozym 435 In acetonitrile at 20℃; for 4h; Inert atmosphere; Enzymatic reaction; regioselective reaction;91%
With lipase cloned from Bacillus amyloliquefaciens In ethanol at 50℃; for 4h; Inert atmosphere; Enzymatic reaction; regioselective reaction;
56-75-7

chloramphenicol

11113-50-1

boric acid

C22H20BCl4N4O10(1-)*H(1+)

Conditions
ConditionsYield
In acetonitrile at 20℃; for 18h; Inert atmosphere;91%
108-05-4

vinyl acetate

56-75-7

chloramphenicol

10318-16-8

(2R,3R)-2-[(dichloroacetyl)amino]-3-hydroxy-3-(4-nitrophenyl)propyl acetate

Conditions
ConditionsYield
With Novozym 435 In acetonitrile at 20℃; for 3h; Inert atmosphere; Enzymatic reaction; regioselective reaction;90%
With lipase cloned from Bacillus amyloliquefaciens In ethanol at 50℃; for 4h; Inert atmosphere; Enzymatic reaction; regioselective reaction;
105-38-4

vinyl propionate

56-75-7

chloramphenicol

33987-21-2

(2R,3R)-2-[(dichloroacetyl)amino]-3-hydroxy-3-(4-nitrophenyl)propyl propionate

Conditions
ConditionsYield
With immobilised Pseudomonas cepacia lipase PSL-C I In 1,4-dioxane at 30℃; for 6h; Inert atmosphere; Enzymatic reaction; regioselective reaction;90%
With lipase cloned from Bacillus amyloliquefaciens In 1,4-dioxane; ethanol at 50℃; for 8h; Catalytic behavior; Solvent; Temperature; Time; Inert atmosphere; Enzymatic reaction; regioselective reaction;
56-75-7

chloramphenicol

108-24-7

acetic anhydride

18162-48-6

tert-butyldimethylsilyl chloride

864529-27-1

(1R,2R)-3-((tert-butyldimethylsilyl)oxy)-2-(2,2-dichloroacetamido)-1-(4-nitrophenyl)propyl acetate

Conditions
ConditionsYield
Stage #1: chloramphenicol; tert-butyldimethylsilyl chloride With 1H-imidazole In dichloromethane at 25℃; for 0.5h;
Stage #2: acetic anhydride With triethylamine In dichloromethane at 25℃; for 12h;
90%
56-75-7

chloramphenicol

67-64-1

acetone

57345-88-7

dichloroacetic acid-[(5R)-2,2-dimethyl-4c-(4-nitro-phenyl)-[1,3]dioxan-5r-ylamide]

Conditions
ConditionsYield
With 4 A molecular sieve; Amberlyst A 15 In tetrahydrofuran for 24h; Ambient temperature;89.3%
56-75-7

chloramphenicol

450347-70-3

1,3-bis(2-hydroxy-3-chloropropyl)uracil

2,2-dichloro-N-{3-[3-(3-{dichloroacetyl-[2-hydroxy-1-hydroxymethyl-2-(4-nitro-phenyl)-ethyl]-amino}-2-hydroxy-propyl)-2,6-dioxo-3,6-dihydro-2H-pyrimidin-1-yl]-2-hydroxy-propyl}-N-[2-hydroxy-1-hydroxymethyl-2-(4-nitro-phenyl)-ethyl]-acetamide

Conditions
ConditionsYield
With potassium carbonate In methanol at 60℃; for 8h;87%
56-75-7

chloramphenicol

123-62-6

propionic acid anhydride

A

1304534-01-7

(1R,2R)-2-[(dichloroacetyl)amino]-1-(4-nitrophenyl)-3-(propanoyloxy)propyl propanoate

B

33987-21-2

(2R,3R)-2-[(dichloroacetyl)amino]-3-hydroxy-3-(4-nitrophenyl)propyl propionate

Conditions
ConditionsYield
With pyridine; dmap In dichloromethane for 0.0833333h;A 15%
B 85%
56-75-7

chloramphenicol

141-75-3

butyryl chloride

A

1,3-dibutanoylchloramphenicol

B

59005-99-1

threo-(1R,2R)-1-(4-nitrophenyl)-2-(dichloroacetamido)-1,3-propanediol 3-butanoate

Conditions
ConditionsYield
With pyridine; dmap In dichloromethane for 0.0833333h;A 15%
B 85%
56-75-7

chloramphenicol

100-83-4

meta-hydroxybenzaldehyde

97889-44-6

2,2-Dichloro-N-[(4R,5R)-2-(3-hydroxy-phenyl)-4-(4-nitro-phenyl)-[1,3]dioxan-5-yl]-acetamide

Conditions
ConditionsYield
With 4 A molecular sieve; Amberlyst A 15 In tetrahydrofuran for 24h; Ambient temperature;82%
108-30-5

succinic acid anhydride

56-75-7

chloramphenicol

3544-94-3

threo-(1R,2R)-1-(4-nitrophenyl)-2-(dichloroacetamido)-1,3-propanediol 3-succinate

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran at 0℃; Reagent/catalyst;81%
In 1,4-dioxane at 20℃; for 24h; lipase;64%
With 1,4-dioxane; pyridine
56-75-7

chloramphenicol

112-13-0

n-decanoyl chloride

1303598-17-5

(1R,2R)-3-(decanoyloxy)-2-[(dichloroacetyl)amino]-1-(4-nitrophenyl)propyl decanoate

Conditions
ConditionsYield
With dmap; triethylamine In dichloromethane at 20℃; for 1h; Inert atmosphere;80%
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  • CHLORAMPHENICOL VET/FEED GRADE

  • Casno:

    56-75-7

    CHLORAMPHENICOL VET/FEED GRADE

    Min.Order: 1 Gram

    FOB Price:  USD $ 0.0-0.0/Gram

    NINGBO KICHEM.CO.,LTD. is an integrative corporation of trade, research and contract manufacture. With about ten years of business experiences on the marketing & distribution, thinkchem specializes in exporting pharmaceuticals, veterinary dru

    NINGBO KICHEM.CO.,LTD. is an integrative corporation of trade, research and contract manufacture. With about ten years of business experiences on the marketing & distribution, thin

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  • DL-Chloramphenicol / Synthomycin / Sintomycin

  • Casno:

    56-75-7

    DL-Chloramphenicol / Synthomycin / Sintomycin

    Min.Order: 100 Kilogram

    FOB Price:  USD $ 0.0-0.0/Kilogram

    Product Name: DL-Chloramphenicol Other name: Synthomycin, Sintomycin Cas No.: 56-75-7 Specification: In-house standard Assay: 98%-102% Specific optical rotation: 0 ° Packing: 25kg/drum MOQ: 100kg Origin: China Pls no

    JOSUN INTERNATIONAL LIMITED is a pharmaceutical company which is integrated with manufacturing, marketing, RD in China. It was founded in Hong Kong and established an office in Shi

  •  Josun International Limited

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  • chloramphenicol

  • Casno:

    56-75-7

    chloramphenicol

    Min.Order: 0

    FOB Price:  USD $ 0.0-0.0/

    Before-Sale Service:---Any inquiries will be replied within 12 hours.---Golden Manufactory under?ISO/GMP?with?large stock.---Dedication to quality,We?have?strict?quality?control?system.?---OEM/ODM Available.---Sample is available for your evaluation

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 Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.

Specification

The Chloramphenicol, with the CAS registry number 56-75-7,is also known as 2,2-Dichloro-N-[2-hydroxy-1-(hydroxymethyl)-2-(4-nitrophenyl)ethyl]acetamide. It belongs to the product categories of Pharmaceuticals;API;Chiral Reagents;Pharmaceutical intermediate. Its EINECS number is 200-287-4. This chemical's molecular formula is C11H12Cl2N2O5 and molecular weight is 323.13. What's more,Its systematic name is Chloramphenicol.It is a White to grey-white crystalline powder which is an antibiotic first isolated from cultures of Streptomyces venequelae in 1947 but now produced synthetically. It has a relatively simple structure and was the first broad-spectrum antibiotic to be discovered. It acts by interfering with bacterial protein synthesis and is mainly bacteriostatic.This chemical may cause cancer. when you use it ,you should avoid exposure - obtain special instructions before use. In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)

Physical properties about Chloramphenicol are:
(1)ACD/LogP:  1.103; (2)# of Rule of 5 Violations:  0; (3)ACD/LogD (pH 5.5):  1.10; (4)ACD/LogD (pH 7.4):  1.10; (5)ACD/BCF (pH 5.5):  4.06; (6)ACD/BCF (pH 7.4):  4.05; (7)ACD/KOC (pH 5.5):  94.80; (8)ACD/KOC (pH 7.4):  94.75; (9)#H bond acceptors:  7; (10)#H bond donors:  3; (11)#Freely Rotating Bonds:  8; (12)Index of Refraction:  1.612; (13)Molar Refractivity:  72.559 cm3; (14)Molar Volume:  208.831 cm3; (15)Polarizability:  28.765 10-24cm3 ; (16)Surface Tension:  66.1240005493164 dyne/cm; (17)Density:  1.547 g/cm3; (18)Flash Point:  343.831 °C; (19)Enthalpy of Vaporization:  99.983 kJ/mol; (20)Boiling Point:  644.913 °C at 760 mmHg; (21)Vapour Pressure:  0 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES:c1cc(ccc1[C@H]([C@@H](CO)NC(=O)C(Cl)Cl)O)[N+](=O)[O-];
(2)Std. InChI:InChI=1S/C11H12Cl2N2O5/c12-10(13)11(18)14-8(5-16)9(17)6-1-3-7(4-2-6)15(19)20/h1-4,8-10,16-17H,5H2,(H,14,18)/t8-,9-/m1/s1;
(3)Std. InChIKey:WIIZWVCIJKGZOK-RKDXNWHRSA-N.

Uses of  Chloramphenicol:
Chloramphenicol  may be used as a second-line agent in the treatment of tetracycline-resistant cholera. Because of its excellent CSF penetration (far superior to any of the cephalosporins), chloramphenicol remains the first choice treatment for staphylococcal brain abscesses. It is also useful in the treatment of brain abscesses due to mixed organisms or when the causative organism is not known. Chloramphenicol has been used in the U.S. in the initial empirical treatment of children with fever and a petechial rash. It has recently been discovered to be a life saving cure for chytridiomycosis in amphibians.

The toxicity data of Chloramphenicol are as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
child TDLo unreported 250mg/kg/10D (250mg/kg) BLOOD: CHANGES IN BONE MARROW NOT INCLUDED ABOVE

BLOOD: HEMORRHAGE

LIVER: OTHER CHANGES
Clinical Pediatrics Vol. 14, Pg. 499, 1975.
dog LD intramuscular > 101mg/kg (101mg/kg)   Journal of Clinical Investigation. Vol. 28, Pg. 943, 1949.
dog LD oral > 300mg/kg (300mg/kg)   Journal of Clinical Investigation. Vol. 28, Pg. 943, 1949.
dog LDLo intravenous 150mg/kg (150mg/kg) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES

VASCULAR: BP LOWERING NOT CHARACTERIZED IN AUTONOMIC SECTION
Journal of Bacteriology. Vol. 55, Pg. 425, 1948.
guinea pig LD50 intravenous 560mg/kg (560mg/kg)   Farmaco, Edizione Scientifica. Vol. 9, Pg. 21, 1954.
guinea pig LD50 oral 500mg/kg (500mg/kg)   Farmaco, Edizione Scientifica. Vol. 10, Pg. 3, 1955.
infant LDLo intravenous 30mg/kg/3D-I (30mg/kg) CARDIAC: CARDIAC OUTPUT

VASCULAR: BP LOWERING NOT CHARACTERIZED IN AUTONOMIC SECTION
Journal of Pediatrics. Vol. 103, Pg. 487, 1983.
infant LDLo unreported 200mg/kg/4D-I (200mg/kg) SKIN AND APPENDAGES (SKIN): "DERMATITIS, ALLERGIC: AFTER SYSTEMIC EXPOSURE"

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BLOOD: EOSINOPHILIA
Lancet. Vol. 1, Pg. 555, 1986.
infant TDLo intramuscular 250mg/kg/2D (250mg/kg) VASCULAR: CHANGE IN PLASMA OR BLOOD VALUME New England Journal of Medicine. Vol. 262, Pg. 787, 1960.
infant TDLo oral 440mg/kg (440mg/kg)   JAMA, Journal of the American Medical Association. Vol. 234, Pg. 149, 1975.
infant TDLo oral 440mg/kg (440mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

GASTROINTESTINAL: OTHER CHANGES
JAMA, Journal of the American Medical Association. Vol. 234, Pg. 149, 1975.
mouse LD50 intraperitoneal 1100mg/kg (1100mg/kg)   Dissertationes Pharmaceuticae. Vol. 14, Pg. 21, 1962.
mouse LD50 intravenous 110mg/kg (110mg/kg) BEHAVIORAL: ATAXIA

LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)
Journal of Clinical Investigation. Vol. 28, Pg. 943, 1949.
mouse LD50 oral 1500mg/kg (1500mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 5, Pg. 1, 1955.
mouse LD50 subcutaneous 400mg/kg (400mg/kg)   "Antibiotics: Origin, Nature, and Properties," Korzyoski, T., et al., eds., Washington, DC, American Soc. for Microbiology, 1978Vol. 1, Pg. 493, 1978.
rabbit LD50 intravenous 117mg/kg (117mg/kg)   Journal of Clinical Investigation. Vol. 28, Pg. 943, 1949.
rat LD50 intraperitoneal 1811mg/kg (1811mg/kg)   Toxicology and Applied Pharmacology. Vol. 18, Pg. 185, 1971.
rat LD50 intravenous 171mg/kg (171mg/kg)   Journal of Clinical Investigation. Vol. 28, Pg. 943, 1949.
rat LD50 oral 2500mg/kg (2500mg/kg)   Farmaco, Edizione Scientifica. Vol. 10, Pg. 3, 1955.
rat LD50 subcutaneous 5gm/kg (5000mg/kg) GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA" Toxicology and Applied Pharmacology. Vol. 9, Pg. 445, 1966.
women LDLo oral 400mg/kg (400mg/kg) BEHAVIORAL: COMA

LUNGS, THORAX, OR RESPIRATION: CYANOSIS

VASCULAR: SHOCK
JAMA, Journal of the American Medical Association. Vol. 234, Pg. 149, 1975

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