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56-84-8

Basic Information
CAS No.: 56-84-8
Name: L-Aspartic acid
Molecular Structure:
Molecular Structure of 56-84-8 (L-Aspartic acid)
Formula: C4H7NO4
Molecular Weight: 133.10
Synonyms: L-Asparaginic acid;(2S)-2-aminobutanedioic acid;(S)-(+)-Aminosuccinic acid;L-(+)-Aspartic acid;(2S)-Aspartic acid;(+)-Aspartic acid;Aspartic acid, L- (8CI);(S)-Aminobutanedioic acid;L-Aspartate;(S)-Aspartic acid;Aspartic acid, L-;Butanedioic acid, amino-, (S)-;
EINECS: 200-291-6
Density: 1.515 g/cm3
Melting Point: >300 °C (dec.)(lit.)
Boiling Point: 264.121 °C at 760 mmHg
Flash Point: 113.536 °C
Solubility: 5 g/L (25 °C) in water
Appearance: White crystalline powder
Hazard Symbols: HarmfulXn, IrritantXi
Risk Codes: 36-36/37/38-20/21/22
Safety: 26-24/25-22-36
Transport Information:
PSA: 100.62000
LogP: -0.42670
Synthetic route
2177-63-1

(S)-2-amino-4-(benzyloxy)-4-oxobutanoic acid

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With sodium carbonate In water for 24h; Ambient temperature;100%
With dimethylsulfide; trifluorormethanesulfonic acid; 30 (v/v); trifluoroacetic acid at 0℃; for 4h; Yield given;
With trifluoroacetic acid In dichloromethane at 20℃; Rate constant;
With p-cresol; dimethylsulfide; hydrogen fluoride at 0℃; for 1h; Rate constant;
With E. coli BL21 Star (DE3) S30 extract In aq. buffer at 37℃; for 6h; pH=7.5;
7536-58-5

BOC-L-aspartic acid 4-benzyl ester

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With Nafion H; trifluoroacetic acid for 3h;100%
With HBF4-thioanisole; 3-methyl-phenol In trifluoroacetic acid at 4℃; for 1h; removal of various protecting groups used in peptide synthesis; cleavage of amino acid amides from 4-methylbenzhydrylamine resin;100%
98477-96-4

Boc-Asp(OChp)-OH

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With trimethylsilyl trifluoromethanesulfonate; methyl-phenyl-thioether In trifluoroacetic acid at 0℃; for 30h;100%
With trimethylsilyl trifluoromethanesulfonate; methyl-phenyl-thioether In trifluoroacetic acid at 0℃; for 0.5h; Product distribution; New peptide deprotection procedure: hard-soft acid-base concept; the role of soft bases (thioanisole, dimethylsulfide, diphenylsulfide) employed.;100%
115545-59-0

H-Asp-(O-1-Ada)-OH

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With trifluoroacetic acid for 0.0833333h; Ambient temperature;100%
With trifluoroacetic acid for 0.0833333h; Product distribution; Ambient temperature; Effect of reagents and reaction time.;
With trifluoroacetic acid stability and susceptibility of the Ada protecting group to various acids;
115545-60-3

H-Asp-(O-2-Ada)-OH

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With methanesulfonic acid for 0.0833333h; Ambient temperature;100%
4427-49-0

Z(OMe)-Asp-(OBzl)-OH

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With trimethylsilyl trifluoromethanesulfonate; diphenyl sulfide In trifluoroacetic acid at 0℃; for 0.5h; Product distribution; New peptide deprotection procedure: hard-soft acid-base concept; the role of soft bases (thioanisole, dimethylsulfide, diphenylsulfide) employed; effect of var. hard bases; var. reaction cond.;100%
With methyl-phenyl-thioether; trimethyl(2,4,6-trimethylphenoxy)silane In trifluoroacetic acid at 22℃; for 1h;100.5 %
231302-81-1

(4S)-3,4-Bis(tert-butoxycarbonyl)tetrahydro-1,3-oxazin-6-one

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran at 20℃;100%

(2S,1'S)-2-[(1-phenylethyl)amino]-butanedioic acid hydrochloride

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal100%
13726-67-5

Boc-Asp-OH

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With tetradecyl(trihexyl)phosphonium bistriflamide; trifluoroacetic acid at 130℃; for 0.166667h; Ionic liquid;99%
at 130℃; for 1h;81%
71989-14-5

Fmoc-(tBu)Asp-OH

A

56-84-8

L-Aspartic acid

B

3057-74-7

L-Asp(t-Bu)

Conditions
ConditionsYield
Stage #1: Fmoc-(tBu)Asp-OH With sodium azide In N,N-dimethyl-formamide at 50℃; for 4h;
Stage #2: With piperidine In N,N-dimethyl-formamide
A n/a
B 97%
110-16-7

maleic acid

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
95.7%

C4H7NO4*H3N*ClH

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With ruthenium nanoparticles dispersed in a polyvinylpyrrolidone matrix; amberlyst A-21 In methanol; dichloromethane95%

L-(S)-Ni(OC(O)CH(CH(CO2C2H5)2)NC(C6H5)C6H4NC(O)CH(CH2)3NCH2C6H5)

105-53-3

diethyl malonate

A

56-84-8

L-Aspartic acid

B

96293-17-3, 105024-93-9, 105112-33-2

(S)-N-(2-benzoylphenyl)-1-benzylpyrrolidine-2-carboxamide

C

nickel dichloride

Conditions
ConditionsYield
In hydrogenchloride boiling for 1 h;;A 50%
B 92%
C n/a
110-17-8

(2E)-but-2-enedioic acid

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With ammonium hydroxide; potassium chloride; magnesium chloride at 30℃; for 72h; with 3-methylaspartase;90%
With ammonia incubated with β-methylaspartase from Clostridium tetanomorphum;90%
durch das Ferment Aspartase oder in Gegenwart von Bakterien;
136083-57-3, 136083-73-3, 119062-05-4

N-α-9-fluorenylmethoxycarbonyl-aspartic acid

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With sodium azide In N,N-dimethyl-formamide at 50℃; for 24h;90%
112259-66-2

β-cyclohexyl L-aspartate

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With methanesulfonic acid for 2h; Ambient temperature;86%

(S)-4-(carboxymethyl)-2,2-borabicycle[3.3.1]nonane-1,3,2-oxazaborolidin-5-one

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With hydrogenchloride In methanol; water at 20℃; for 0.5h; Inert atmosphere;81%

(S)-N-hydroxyaspartic acid

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With platinum(IV) oxide; hydrogen; acetic acid In water optical yield given as %ee;80%
142-42-7

fumarate

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With L384A; ammonia; ammonium chloride; magnesium chloride In water-d2; water at 22℃; for 168h; pH=9; Enzymatic reaction; optical yield given as %ee; stereoselective reaction;80%

Dimethyl (2S,4RS)-4-nitro-n-phthaloylglutamate

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With hydrogenchloride; water for 12h; Heating;78%

L-isoaspartic acid benzylamido methyl ester hydrochloride

L-aspartic acid benzylamido methyl ester hydrochloride

A

56-84-8

L-Aspartic acid

B

124223-92-3

(3S)-3-amino-1-benzylpyrrolidine-2,5-dione

Conditions
ConditionsYield
With sodium hydrogencarbonate In water at 55℃; for 0.5h; pH=2 - 11;A 78%
B n/a
127556-07-4

(2R)-N-<(2S)-2--3-<(tert-butyl)oxycarbonyl>propan-1-oyl>bornane-10,2-sultam

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With hydrogenchloride; lithium hydroxide 1.) THF/water, r.t., 24 h, 2.) THF/water 2 : 1, r.t., 24 h;75%
60-18-4

L-tyrosine

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With ruthenium trichloride; sodium periodate; phosphate buffer In tetrachloromethane; acetonitrile for 3h; pH=3; Product distribution; Further Variations:; pH-values;50%
29625-73-8

2-acetamido-4-O-(2-acetamido-2-deoxy-β-D-glucopyranosyl)-1-N-(4-L-aspartoyl)-2-deoxy-β-D-glucopyranosylamine

A

672-15-1

L-homoserine

B

56-84-8

L-Aspartic acid

C

29886-32-6

β-D-GlcpNAc(1->4)-D-GlcNAc-ol

Conditions
ConditionsYield
With sodium hydroxide; sodium tetrahydroborateA 15%
B 3%
C 20%
34557-54-5

methane

A

70-47-3

L-asparagine

B

56-84-8

L-Aspartic acid

C

108-80-5

isocyanuric acid

Conditions
ConditionsYield
With nitrogen; hydrogen In water at -5 - 5℃; under 760.051 Torr; pH=7.1; Electrochemical reaction;A n/a
B n/a
C 7.1%
328-42-7

Oxalacetic acid

56-86-0

L-glutamic acid

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With transaminase
328-42-7

Oxalacetic acid

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With clostridium saccharobutyricum; hydroxylamine
3130-87-8

ASPARAGINE

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
With nitric acid Hydrolysis;
70-47-3

L-asparagine

56-84-8

L-Aspartic acid

Conditions
ConditionsYield
durch Asparaginase katalysierte Hydrolyse;
durch das Enzym Asparaginase;
With acid
67-56-1

methanol

56-84-8

L-Aspartic acid

6384-18-5

L-Aspartic acid dimethyl ester

Conditions
ConditionsYield
With thionyl chloride100%
With thionyl chloride Heating;100%
With sulfuric acid Reflux;100%
67-56-1

methanol

56-84-8

L-Aspartic acid

32213-95-9

dimethyl L-aspartate hydrochloride

Conditions
ConditionsYield
With thionyl chloride at 0℃; Reflux; Inert atmosphere;100%
With thionyl chloride at 20℃; for 48h;100%
With thionyl chloride for 3h; Inert atmosphere; Reflux;100%
56-84-8

L-Aspartic acid

1115-63-5

potassium hydrogen L-aspartate

Conditions
ConditionsYield
With potassium hydroxide In water Ambient temperature;100%
56-84-8

L-Aspartic acid

999-97-3

1,1,1,3,3,3-hexamethyl-disilazane

5269-42-1

L-Aspartic acid bis(trimethylsilyl) ester

Conditions
ConditionsYield
for 5h; Heating;100%
64-17-5

ethanol

56-84-8

L-Aspartic acid

16115-68-7

diethyl L-aspartate hydrochloride

Conditions
ConditionsYield
With acetyl chloride Heating;100%
With acetyl chloride for 4h; Heating;100%
With acetyl chloride100%
56-84-8

L-Aspartic acid

34029-31-7

(S)-3-amino-3,4-dihydrofurane-2,5-dione hydrochloride

Conditions
ConditionsYield
With phosphorus trichloride In tetrahydrofuran at 20℃;100%
With phosphorus trichloride In tetrahydrofuran at 20℃; for 6h;100%
With trichlorophosphate In tetrahydrofuran at 10 - 20℃; for 13h; Temperature; Large scale;
67-56-1

methanol

56-84-8

L-Aspartic acid

24424-99-5

di-tert-butyl dicarbonate

130622-08-1, 55747-84-7

dimethyl N-tert-butoxycarbonyl-L-aspartate

Conditions
ConditionsYield
Stage #1: methanol; L-Aspartic acid With chloro-trimethyl-silane at 0 - 20℃; for 25h; Inert atmosphere;
Stage #2: di-tert-butyl dicarbonate With triethylamine for 2h; Inert atmosphere;
100%
Stage #1: methanol; L-Aspartic acid With chloro-trimethyl-silane at 0 - 20℃; for 48h;
Stage #2: di-tert-butyl dicarbonate With triethylamine at 20℃; for 21h;
96%
Stage #1: methanol; L-Aspartic acid With thionyl chloride at 0 - 20℃; for 14h; Inert atmosphere;
Stage #2: di-tert-butyl dicarbonate With sodium hydrogencarbonate In dichloromethane; water for 4h; Reflux;
92%
56-84-8

L-Aspartic acid

32213-95-9

dimethyl L-aspartate hydrochloride

Conditions
ConditionsYield
With thionyl chloride In methanol100%
With thionyl chloride In methanol; benzene
56-84-8

L-Aspartic acid

Mono magnesium-L-aspartate-hydrochloride

Conditions
ConditionsYield
Stage #1: L-Aspartic acid With hydrogenchloride In water at 60℃;
Stage #2: With magnesium oxide In water
100%
With hydrogenchloride; magnesium oxide In water at 60℃; Product distribution / selectivity;100%
Stage #1: L-Aspartic acid With magnesium oxide In water at 60℃;
Stage #2: With magnesium chloride In water at 60℃; for 2h;
With magnesium oxide; magnesium chloride In water at 60℃; for 2h; Product distribution / selectivity;
56-84-8

L-Aspartic acid

calcium L-aspartate hydrochloride

Conditions
ConditionsYield
Stage #1: L-Aspartic acid With calcium hydroxide In water at 60℃; for 1h;
Stage #2: With calcium chloride In water
100%
Stage #1: L-Aspartic acid With calcium hydroxide In water at 60℃; for 1h;
Stage #2: With calcium chloride In water
100%

calcium dichloride dihydrate

56-84-8

L-Aspartic acid

calcium aspartate hydrochloride

Conditions
ConditionsYield
In water100%
75-77-4

chloro-trimethyl-silane

56-84-8

L-Aspartic acid

32213-95-9

dimethyl L-aspartate hydrochloride

Conditions
ConditionsYield
In methanol at 20℃; for 16h; Cooling with ice; enantioselective reaction;100%
In methanol at 20℃; for 16h; Cooling with ice;99.9%
56-84-8

L-Aspartic acid

nicotinic acid riboside 5'-monophosphate

(S)-1,2-dicarboxyethan-1-aminium-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(((hydroxyoxidophosphoryl)oxy)methyl)tetrahydrofuran-2-yl)pyridin-1-ium-3-carboxylate

Conditions
ConditionsYield
In water pH=2.06 - 2.31; Inert atmosphere; Cooling with ice;100%
56-84-8

L-Aspartic acid

nicotinic acid riboside 5'-monophosphate

bis((S)-1,2-dicarboxyethan-1-aminium)-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-((phosphonatooxy)methyl)tetrahydrofuran-2-yl)pyridin-4-ium-3-carboxylate

Conditions
ConditionsYield
In water pH=2.06 - 2.41; Inert atmosphere; Cooling with ice;100%
56-84-8

L-Aspartic acid

1094-61-7

nicotinamide mononucleotide

(S)-1,2-dicarboxyethan-1-aminium-((2R,3S,4R,5R)-5-(3-carbamoylpyridin-1-ium-1-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl phosphate

Conditions
ConditionsYield
In water pH=2.99 - 3.39; Inert atmosphere; Cooling with ice;100%
21205-91-4

9-borabicyclo[3.3.1]nonane dimer

56-84-8

L-Aspartic acid

C12H20BNO4

Conditions
ConditionsYield
In methanol at 55℃; for 3h; Inert atmosphere;100%
67-56-1

methanol

56-84-8

L-Aspartic acid

16856-13-6

(+)-β-methyl-L-aspartate hydrochloride

Conditions
ConditionsYield
With thionyl chloride at 5℃; under 825.083 Torr; for 6h; Temperature;99%
With thionyl chloride at -10 - 20℃; for 0.416667h;97%
With hydrogenchloride95%
56-84-8

L-Aspartic acid

98015-53-3

1,2,2,2-tetrachloroethyl chloroformate

114858-45-6

(S)-2-(1,2,2,2-Tetrachloro-ethoxycarbonylamino)-succinic acid

Conditions
ConditionsYield
In 1,4-dioxane for 2h; Heating;99%
56-84-8

L-Aspartic acid

108-24-7

acetic anhydride

997-55-7

N-Acetyl-L-aspartic acid

Conditions
ConditionsYield
In water for 0.0666667h; Irradiation;99%
56-84-8

L-Aspartic acid

372-09-8

cyanoacetic acid

Conditions
ConditionsYield
With sodium hydroxide; trichloroisocyanuric acid at 25℃; for 1h;99%
With vanadium chloroperoxidase; dihydrogen peroxide; sodium bromide In aq. buffer at 20 - 22℃; for 1h; pH=5.6; Kinetics; Catalytic behavior; Reagent/catalyst; Time; Enzymatic reaction;
With hydrogenchloride; sode de l'acide trichloroisocyanurique In water for 3h;
64-18-6

formic acid

56-84-8

L-Aspartic acid

116147-62-7

n-formyl-l-aspartic anhydride

Conditions
ConditionsYield
In acetic anhydride at 20 - 70℃; for 12h;99%
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    Product name: L-Aspartic Acid CAS No.:56-84-8 Molecule Formula:C4H7NO4 Molecule Weight:133.1 Purity: 99.8% Package: 25kg/drum Description:White crystalline powder Manufacture Standards:FCCIV/USP/EP Items

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    Items Standard Result Assay (Ursolic acid) 98%min 98.22% ----------------------------------------------------------------

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    L-Aspartic acid

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    Product Name: L-Aspartic acid Synonyms: ASP;ASPARTIC(L-);ASPARTIC ACID;ASPARTIC ACID, L-;H-ASP-OH;FEMA 3656;H-L-ASP-OH;L-ALPHA-AMINOSUCCINIC ACID CA… Founded in 2014, as a professional international pharmaceutical corporation, headquartere

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    L-aspartic acid

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    56-84-8 L-Aspartic acid

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    L-Aspartic acid CAS 56-84-8

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Specification

The L-Aspartic acid, with the CAS registry number 56-84-8,is also known as L(+)-Aspartic acid; L-2-Aminobutanedioic acid; L-Aminosuccinic acid. It belongs to the product categories of pharmaceutical intermediate;sweetener. This chemical's molecular formula is C4H7NO4 and molecular weight is 133.10.Its EINECS number is 200-291-6. What's more,Its systematic name is L-Aspartic acid. It is a White crystalline powder which is used for synthetic sweetener. In medicine, it is used in the treatment of heart disease, and it also used as liver promoting agents, AMMONIA antidote, elimination fatigue,  amino acid composition infusion, ect.It is one of the non-essential amino acids commonly occurring in the L-form. It is found in animals and plants, especially in sugar cane and sugar beets. It may be a neurotransmitter.

L-Aspartic acid has the following datas:
(1)ACD/LogP:  -1.075; (2)# of Rule of 5 Violations:  0; (3)ACD/LogD (pH 5.5):  -4.50; (4)ACD/LogD (pH 7.4):  -4.58; (5)ACD/BCF (pH 5.5):  1.00; (6)ACD/BCF (pH 7.4):  1.00; (7)ACD/KOC (pH 5.5):  1.00; (8)ACD/KOC (pH 7.4):  1.00; (9)#H bond acceptors:  5; (10)#H bond donors:  4; (11)#Freely Rotating Bonds:  4; (12)Index of Refraction:  1.531; (13)Molar Refractivity:  27.203 cm3; (14)Molar Volume:  87.868 cm3; (15)Surface Tension:  78.2060012817383 dyne/cm; (16)Density:  1.515 g/cm3; (17)Flash Point:  113.536 °C; (18)Enthalpy of Vaporization:  55.259 kJ/mol; (19)Boiling Point:  264.121 °C at 760 mmHg; (20)Vapour Pressure:  0.00300000002607703 mmHg at 25°C.

You could convert the following datas into the molecular structure:
(1)SMILES:C([C@@H](C(=O)O)N)C(=O)O;
(2)Std. InChI:InChI=1S/C4H7NO4/c5-2(4(8)9)1-3(6)7/h2H,1,5H2,(H,6,7)(H,8,9)/t2-/m0/s1;
(3)Std. InChIKey:CKLJMWTZIZZHCS-REOHCLBHSA-N.

Toxicity of L-Aspartic acid is as follows :

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 6gm/kg (6000mg/kg)   Pharmaceutical Chemistry Journal Vol. 25, Pg. 569, 1991.

 Safety Information of L-Aspartic acid:
The L-Aspartic acid is Irritating to eyes, respiratory system and skin and harmful by inhalation, in contact with skin and if swallowed. When you use it ,wear suitable protective clothing,avoid contact with skin and eyes and do not breathe dust.  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.