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921-01-7

Basic Information
CAS No.: 921-01-7
Name: D-Cysteine
Molecular Structure:
Molecular Structure of 921-01-7 (D-Cysteine)
Formula: C3H7NO2S
Molecular Weight: 121.16
Synonyms: Cysteine,D- (8CI);(S)-Cysteine;(S)-2-Amino-3-mercaptopropionic acid;
EINECS: 213-062-0
Density: 1.335 g/cm3
Melting Point: ~230 °C
Boiling Point: 293.9 °C at 760 mmHg
Flash Point: 131.5 °C
Solubility: Soluble in water (partly).
Appearance: white crystals or crystalline powder
Hazard Symbols: HarmfulXn; IrritantXi
Risk Codes: 36/37/38-20/21/22
Safety: 26-36/37/39
Transport Information:
PSA: 102.12000
LogP: 0.02840
Synthetic route
Conditions
ConditionsYield
With hydroxylamine hydrochloride83%
With hydroxylamine hydrochloride In methanol reflux, 120 min, ice bath, 60 min;82%
88271-26-5

(2S,4S)-2-(D-galacto-1,2,3,4,5-Pentahydroxypentyl)-4-thiazolidincarbonsaeure

921-01-7

D-cysteine

Conditions
ConditionsYield
With hydroxylamine hydrochloride In methanol for 2h; Heating;73%
Conditions
ConditionsYield
With hydroxylamine hydrochloride In methanol; water for 3.5h; Heating;60%
Conditions
ConditionsYield
beim selektiven Abbau durch Escherichia coli;
349-46-2

S,S-cystine

921-01-7

D-cysteine

Conditions
ConditionsYield
With hydrogenchloride; tin
3054-01-1, 5680-65-9, 16597-46-9, 23032-53-3

(D)-2-Amino-3-(benzylthio)propanoic acid

921-01-7

D-cysteine

Conditions
ConditionsYield
With ammonia; sodium
2998-83-6

(2R,2'R)-2-amino-4-(2'-amino-2'-carboxyethylsulfanyl)butanoic acid

921-01-7

D-cysteine

Conditions
ConditionsYield
Spaltung durch Leber-Extrakt;
52-90-4

L-Cysteine

921-01-7

D-cysteine

Conditions
ConditionsYield
With water; acetone Product distribution; 1.) acetic acid, reflux, 2.5 h; 2.) methanol, room temp, 30 min;
3981-36-0

3-chloro-DL-alanine

921-01-7

D-cysteine

Conditions
ConditionsYield
With sodium hydrogensulfide; potassium phosphate buffer; acetone at 30℃; for 2h; 3-chloro-D-alanine-lyase; Yield given;
Conditions
ConditionsYield
With dinitrogen sulphide; pyridoxal 5'-phosphate; sodium dodecyl-sulfate at 30℃; for 3.5h; Pseudomonas fluorescens CR 19-1, 0.1 M phosphate buffer, pH 8.5;
With sodium hydrogensulfide; potassium phosphate buffer; pyridoxal 5'-phosphate In acetone at 30℃; for 2h; Pseudomonas putida CR 1-1 cells; Yield given;

4-ethylbenzenesulfonic acid D-cysteine salt

921-01-7

D-cysteine

Conditions
ConditionsYield
With triethylamine In methanol for 0.5h;
Conditions
ConditionsYield
With teicoplanin In methanol; water Product distribution; Further Variations:; Reagents; pH-values; Solvents;
Resolution of racemate; enantioselective reaction;A n/a
B n/a
Resolution of racemate; enantioselective reaction;A n/a
B n/a
With R-(3,3'-dibromo-1,1'-binaphthyl)-20-crown-6 coated C18 silica gel column at 25℃; pH=2; Resolution of racemate;
With capillary electrochromatography open-tubular column coated with 1-allylimidazolium-β-cyclodextrin In aq. acetate buffer at 20℃; pH=8; pH-value; Resolution of racemate;

hydrgensulfide(1-)

6020-39-9

L-cystine

A

921-01-7

D-cysteine

B

disulfide

Conditions
ConditionsYield
In further solvent(s) Kinetics; in pH 10.0 borate buffer; detected with UV-vis sectroscopy and ion-exchange chromatography;
1359827-55-6

hapalocyclamide

A

56-41-7

L-alanin

B

338-69-2

D-Alanine

C

921-01-7

D-cysteine

D

150-30-1

Phenylalanine

Conditions
ConditionsYield
With hydrogenchloride; water at 100℃; for 19h;
1359827-55-6

hapalocyclamide

A

338-69-2

D-Alanine

B

921-01-7

D-cysteine

C

63-91-2

L-phenylalanine

D

673-06-3

D-(R)-phenylalanine

Conditions
ConditionsYield
With hydrogenchloride; water at 100℃; for 1h;

Z-Ile-Glu(OMe)-Thr-Asp(OMe)-D-Cys

921-01-7

D-cysteine

Conditions
ConditionsYield
With caspase 8 for 1h;
921-01-7

D-cysteine

172949-72-3

2,4-Di-tert-butoxy-pyrimidine-5-carbaldehyde

1025823-01-1

(2S,4S)-2-(2,4-Di-tert-butoxy-pyrimidin-5-yl)-thiazolidine-4-carboxylic acid

Conditions
ConditionsYield
In ethanol; water100%
921-01-7

D-cysteine

106-94-5

propyl bromide

85955-34-6

S-propyl-D-cysteine

Conditions
ConditionsYield
With ammonia; sodium98%
921-01-7

D-cysteine

107-18-6

allyl alcohol

Fudosteine

Conditions
ConditionsYield
With potassium sulfate In water at 30℃;98%
921-01-7

D-cysteine

6182-78-1

tert-butyl 4-iodobutanoate

4-((2S)-amino-2-carboxy-ethylsulfanyl)-butyric acid tert-butyl ester

Conditions
ConditionsYield
Stage #1: D-cysteine With sodium hydroxide; water In methanol at 0℃;
Stage #2: tert-butyl 4-iodobutanoate In methanol for 0.0833333h;
Stage #3: With hydrogenchloride; water In methanol pH=~ 8;
97%
921-01-7

D-cysteine

939-69-5

2-cyano-6-hydroxybenzothiazole

2591-17-5

D-luciferin

Conditions
ConditionsYield
In water at 20℃;95%
With ammonia; sodium In methanol; water94%
Stage #1: D-cysteine; 2-cyano-6-hydroxybenzothiazole In aq. buffer for 1h;
Stage #2: With ATP; magnesium chloride; zinc(II) chloride; luciferase In aq. buffer
27%
67-56-1

methanol

921-01-7

D-cysteine

5714-80-7, 18598-63-5, 70361-61-4

D-cysteine methyl ester hydrochloride

Conditions
ConditionsYield
With acetyl chloride at 0℃; for 2h; Reflux;94%
With hydrogenchloride for 12h;
With hydrogenchloride at 100℃; for 0.5h;
151-56-4

ethyleneimine

921-01-7

D-cysteine

53526-71-9

2-amino-3-<(2-aminoethyl)thio>-propanoic acid

Conditions
ConditionsYield
With phosphate buffer at 0℃; pH 8.0;92%
921-01-7

D-cysteine

14470-28-1

mono-4-methoxytrityl chloride

926935-33-3

C23H23NO3S

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 20℃; for 48h; Inert atmosphere;92%
934270-86-7

6-(methylamino)benzo[d]-thiazole-2-carbonitrile

921-01-7

D-cysteine

D-(-)-2-(6'-methylamino-2'-benzothiazolyl)-Δ2-thiazoline-4-carboxylic acid

Conditions
ConditionsYield
In methanol for 1h; pH=8; aq. sodium phosphate buffer; Inert atmosphere;91%
921-01-7

D-cysteine

6812-16-4

2-Hydroxy-3-methoxybenzonitrile

(S)-2-(2-Hydroxy-3-methoxy-phenyl)-4,5-dihydro-thiazole-4-carboxylic acid

Conditions
ConditionsYield
With phosphate buffer In methanol at 70℃; for 17h;90%
67-56-1

methanol

921-01-7

D-cysteine

(S)-(+)-Cysteinmethylester

Conditions
ConditionsYield
Stage #1: methanol With acetyl chloride at 0℃; for 0.0833333h;
Stage #2: D-cysteine for 6h; Reflux;
90%
921-01-7

D-cysteine

24424-99-5

di-tert-butyl dicarbonate

126686-73-5

N,N’-di-Boc-L-cystine

Conditions
ConditionsYield
With sodium hydroxide In tetrahydrofuran; water for 24h; pH=10;89%
921-01-7

D-cysteine

6-((4-(dimethylamino)phenyl)amino)benzo[d]thiazole-2-carbonitrile

(S)-2-(6-((4-(dimethylamino)phenyl)amino)benzo[d]thiazol-2-yl)-4,5-dihydrothiazole-4-carboxylic acid

Conditions
ConditionsYield
In methanol; aq. phosphate buffer for 1h; pH=8; Inert atmosphere;88%
64-17-5

ethanol

921-01-7

D-cysteine

75521-14-1

D-cysteine ethyl ester hydrochloride

Conditions
ConditionsYield
Stage #1: ethanol With thionyl chloride at -5 - 20℃; for 1.5h;
Stage #2: D-cysteine at 50℃; for 4h;
87.5%
921-01-7

D-cysteine

613-45-6

2,4-Dimethoxybenzaldehyde

C12H15NO4S

Conditions
ConditionsYield
In ethanol at 20℃; for 48h;87%
921-01-7

D-cysteine

N-(2-cyanobenzo[d]thiazol-6-yl)ethanesulfonamide

(S)-2-(6-(ethylsulfonamido)benzo[d]thiazol-2-yl)-4,5-dihydrothiazole-4-carboxylic acid

Conditions
ConditionsYield
In methanol; aq. phosphate buffer for 1h; pH=8;86%
921-01-7

D-cysteine

N-(2-cyanobenzo[d]thiazol-6-yl)methanesulfonamide

(S)-2-(6-(methylsulfonamido)benzo[d]thiazol-2-yl)-4,5-dihydrothiazole-4-carboxylic acid

Conditions
ConditionsYield
In aq. phosphate buffer; acetonitrile for 1h; pH=8;86%
921-01-7

D-cysteine

501-53-1

benzyl chloroformate

74-88-4

methyl iodide

95406-98-7

N-(benzyloxycarbonyl)-S-methyl-D-cysteine

Conditions
ConditionsYield
Stage #1: D-cysteine; methyl iodide With sodium In methanol
Stage #2: benzyl chloroformate With sodium hydroxide
85%
64-67-5

diethyl sulfate

921-01-7

D-cysteine

(S)-2-amino-3-(ethylthio)propanoic acid

Conditions
ConditionsYield
With barium(II) hydroxide at 20℃; for 3h;85%
921-01-7

D-cysteine

623-05-2

(4-hydroxyphenyl)methanol

D-[S-(4'-hydroxybenzyl)]cysteine

Conditions
ConditionsYield
With hydrogenchloride In water at 20℃; for 0.333333h; pH=2;84.7%
921-01-7

D-cysteine

6-((4-hydroxyphenyl)amino)benzo[d]thiazole-2-carbonitrile

(S)-2-(6-((4-hydroxyphenyl)amino)benzo[d]thiazol-2-yl)-4,5-dihydrothiazole-4-carboxylic acid

Conditions
ConditionsYield
In methanol; aq. phosphate buffer for 1h; pH=8; Inert atmosphere;84%
921-01-7

D-cysteine

6-(2-oxooxazolidin-3-yl)benzo[d]thiazole-2-carbonitrile

(S)-2-(6-(2-oxooxazolidin-3-yl)benzo[d]thiazol-2-yl)-4,5-dihydrothiazole-4-carboxylic acid

Conditions
ConditionsYield
In methanol; aq. phosphate buffer for 1h; pH=8; Inert atmosphere;84%
921-01-7

D-cysteine

1417816-65-9

5-methoxythiazolo[5,4-b]pyridine-2-carbonitrile

(S)-2-(5-methoxy-thiazolo[5,4-b]pyridin-2-yl)-4,5-dihydrothiazole-4-carboxylic acid

Conditions
ConditionsYield
With potassium carbonate In water; N,N-dimethyl-formamide; acetonitrile for 0.166667h;83%
921-01-7

D-cysteine

169776-04-9

6-fluorobenzo[d]thiazole-2-carbonitrile

(S)-2-(6-fluorobenzo[d]thiazol-2-yl)-4,5-dihydrothiazole-4-carboxylic acid

Conditions
ConditionsYield
In methanol; aq. phosphate buffer for 1h; pH=8; Inert atmosphere;81%
921-01-7

D-cysteine

N-(2-cyanobenzo[d]thiazol-6-yl)cyclopentanesulfonamide

(S)-2-(6-(cyclopentanesulfonamido)benzo[d]thiazol-2-yl)-4,5-dihydrothiazole-4-carboxylic acid

Conditions
ConditionsYield
In methanol; aq. phosphate buffer for 1h; pH=8;80%
921-01-7

D-cysteine

2-cyanobenzo[d]thiazol-6-yl 4-oxopentanoate

(S)-2-(6-((4-oxopentanoyl)oxy)benzo[d]thiazol-2-yl)-4,5-dihydrothiazole-4-carboxylic acid

Conditions
ConditionsYield
In methanol; dichloromethane; water at 0 - 25℃; for 0.5h; Inert atmosphere;79.7%
921-01-7

D-cysteine

N-(2-cyanobenzo[d]thiazol-6-yl)propane-2-sulfonamide

(S)-2-(6-(1-methylethylsulfonamido)benzo[d]thiazol-2-yl)-4,5-dihydrothiazole-4-carboxylic acid

Conditions
ConditionsYield
In methanol; aq. phosphate buffer for 1h; pH=8;79%

1-(3',4'-dihydroxyphenyl)decan-3-one

921-01-7

D-cysteine

3’-S-cysteinyl-1-(3,4-dihydroxyphenyl)decan-3-one

Conditions
ConditionsYield
With 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione In methanol; aq. phosphate buffer at -78 - 20℃; for 1.5h;78%
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    D-Cysteine CAS NO.921-01-7

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  • D-Cysteine

  • Casno:

    921-01-7

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Specification

The CAS registry number of D-Cysteine is 921-01-7. Its EINECS registry number is 213-062-0. In addition, the molecular formula is C3H7NO2S and the molecular weight is 121.16. The IUPAC name is (2S)-2-amino-3-sulfanylpropanoic acid. What's more, it is a kind of white crystalline powder and should be stored in a cool and dry place.

Physical properties about D-Cysteine are: (1)ACD/LogP: 0.09; (2)ACD/BCF (pH 5.5): 1; (3)ACD/BCF (pH 7.4): 1; (4)ACD/KOC (pH 5.5): 1; (5)ACD/KOC (pH 7.4): 1; (6)#H bond acceptors: 3; (7)#H bond donors: 3; (8)#Freely Rotating Bonds: 4; (9)Polar Surface Area: 102.12 Å2; (10)Index of Refraction: 1.55; (11)Molar Refractivity: 28.902 cm3; (12)Molar Volume: 90.783 cm3; (13)Polarizability: 11.458 ×10-24cm3; (14)Surface Tension: 58.975 dyne/cm; (15)Density: 1.335 g/cm3; (16)Flash Point: 131.536 °C; (17)Enthalpy of Vaporization: 58.69 kJ/mol; (18)Boiling Point: 293.883 °C at 760 mmHg.

When you are using this chemical, please be cautious about it as the following:
This chemical is harmful by inhalation, in contact with skin and if swallowed. It is irritating to eyes, respiratory system and skin. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. Whenever you will contact it, please wear suitable protective clothing, gloves and eye/face protection.

You can still convert the following datas into molecular structure:
(1)SMILES: C([C@H](C(=O)O)N)S
(2)Std.InChI: InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m1/s1
(3)Std.InChIKey: XUJNEKJLAYXESH-UWTATZPHSA-N