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Basic Information
CAS No.: 997-55-7
Name: N-Acetyl-L-aspartic acid
Article Data: 12
Molecular Structure:
Molecular Structure of 997-55-7 (N-Acetyl-L-aspartic acid)
Formula: C6H9NO5
Molecular Weight: 175.141
Synonyms: Asparticacid, N-acetyl-, L- (8CI);Acetyl-L-aspartic acid;Acetylaspartic acid;L-N-Acetylaspartic acid;N-Acetyl-S-aspartic acid;N-Acetylaspartic acid;
EINECS: 213-643-9
Density: 1.422 g/cm3
Melting Point: 137-140 °C(lit.)
Boiling Point: 425.3 °C at 760 mmHg
Flash Point: 211 °C
Appearance: White powder
Safety: 22-24/25
PSA: 103.70000
LogP: -0.55870
Synthetic route
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%
41148-79-2

(S)-N-acetyl-L-aspartic anhydride

997-55-7

N-Acetyl-L-aspartic acid

Conditions
ConditionsYield
With water
5269-42-1

L-Aspartic acid bis(trimethylsilyl) ester

75-36-5

acetyl chloride

997-55-7

N-Acetyl-L-aspartic acid

Conditions
ConditionsYield
Stage #1: L-Aspartic acid bis(trimethylsilyl) ester; acetyl chloride With (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate In dichloromethane at 20℃;
Stage #2: With methanol In dichloromethane at 20℃;
19146-51-1

(S)-N-Acetylaminobutyric acid

997-55-7

N-Acetyl-L-aspartic acid

Conditions
ConditionsYield
With hydrogen peroxide; trifluoroacetic acid In water-d2 Kinetics; Photolysis;
3106-85-2

N-acetyl-L-aspartyl-L-glutamate

A

56-86-0

L-glutamic acid

B

997-55-7

N-Acetyl-L-aspartic acid

Conditions
ConditionsYield
With glutamate carboxypeptidase II; TACN*Zn(II) complex; 2-hydroxypropyl-p-nitrophenyl phosphate at 40℃; pH=7; Kinetics; aq. buffer; Enzymatic reaction;
56-84-8

L-Aspartic acid

17336-14-0

2-acetyloxy-5-nitrobenzoic acid

997-55-7

N-Acetyl-L-aspartic acid

Conditions
ConditionsYield
In water at 25℃; Kinetics; Concentration;
56-84-8

L-Aspartic acid

1734-62-9

2-acetoxy-5-chloro-benzoic acid

997-55-7

N-Acetyl-L-aspartic acid

Conditions
ConditionsYield
In water at 25℃; Kinetics; Concentration;
56-84-8

L-Aspartic acid

50-78-2

aspirin

997-55-7

N-Acetyl-L-aspartic acid

Conditions
ConditionsYield
In water at 25℃; Kinetics; Concentration;
997-55-7

N-Acetyl-L-aspartic acid

41148-79-2

(S)-N-acetyl-L-aspartic anhydride

Conditions
ConditionsYield
With acetic anhydride at 20 - 80℃; for 5h;88%
997-55-7

N-Acetyl-L-aspartic acid

3-amino-7-methyl-3,4-dihydro-1,8-naphthyridin-2(1H)-one dihydrochloride

1357057-62-5

N-acetyl-L-aspartic acid (3S)-3-amino-7-methyl-3,4-dihydro-1,8-naphthyridin-2(1H)-one salt

Conditions
ConditionsYield
Stage #1: 3-amino-7-methyl-3,4-dihydro-1,8-naphthyridin-2(1H)-one dihydrochloride With sodium hydroxide In dichloromethane at 20℃; for 0.5h;
Stage #2: N-Acetyl-L-aspartic acid In ethanol at 60℃; for 1h;
83%
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Chemistry

Molecular Structure:

Molecular Formula: C6H9NO5
Molecular Weight: 175.1394
IUPAC Name: (2S)-2-Acetamidobutanedioate
Synonyms of N-Acetyl-L-aspartic acid (CAS NO.997-55-7): N-Acetylaspartate ; 4-04-00-03015 (Beilstein Handbook Reference) ; Acetyl-L-aspartic acid ; Acetylaspartic acid ; BRN 1726198 ; EINECS 213-643-9 ; L-N-Acetylaspartic acid ; N-Acetylaspartic acid ; NSC 128610 ; Aspartic acid, N-acetyl-, L- (8CI) ; L-Aspartic acid, N-acetyl-
CAS NO: 997-55-7
Classification Code: Drug / Therapeutic Agent
Melting point: 137-140 °C
Index of Refraction: 1.505
Molar Refractivity: 36.55 cm3
Molar Volume: 123.1 cm3
Surface Tension: 61.5 dyne/cm
Density: 1.422 g/cm3
Flash Point: 211 °C
Enthalpy of Vaporization: 74.57 kJ/mol
Boiling Point: 425.3 °C at 760 mmHg
Vapour Pressure of N-Acetyl-L-aspartic acid (CAS NO.997-55-7): 2E-08 mmHg at 25°C

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 2660mg/kg (2660mg/kg)   Pharmaceutical Chemistry Journal Vol. 25, Pg. 569, 1991.

Safety Profile

Safety Statements of N-Acetyl-L-aspartic acid (CAS NO.997-55-7): 22-24/25 
S22: Do not breathe dust. 
S24/25: Avoid contact with skin and eyes.
WGK Germany: 1
RTECS: CI9098600