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00920

Sigma-Aldrich

N-Acetyl-L-aspartic acid

≥99.0% (T)

Synonym(s):

(2S)-2-Acetamidobutanedioic acid, N-Acetyl-S-aspartic acid

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About This Item

Linear Formula:
HO2CCH2CH(NHCOCH3)CO2H
CAS Number:
997-55-7
Molecular Weight:
175.14
Beilstein:
1726198
MDL number:
MFCD00020500
UNSPSC Code:
12352209
eCl@ss:
32160406
PubChem Substance ID:
329747163
NACRES:
NA.22

Quality Level

100

Assay

≥99.0% (T)

form

powder

optical activity

[α]20/D +12±1°, c = 2% in 6 M HCl

reaction suitability

reaction type: solution phase peptide synthesis

color

colorless to white

mp

137-140 °C (lit.)
141-146 °C

application(s)

peptide synthesis

SMILES string

CC(=O)N[C@@H](CC(O)=O)C(O)=O

InChI

1S/C6H9NO5/c1-3(8)7-4(6(11)12)2-5(9)10/h4H,2H2,1H3,(H,7,8)(H,9,10)(H,11,12)/t4-/m0/s1

InChI key

OTCCIMWXFLJLIA-BYPYZUCNSA-N

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Related Categories

Application

N-Acetyl-L-aspartic acid can be used as a reactant to synthesize:
  • Protected homoserine γ-lactones by selective reduction and acid-catalyzed cyclization reaction.
  • Racemic amino substituted succinimide derivatives via cyclocondensation reaction.

Other Notes

Review; acetyl donor in acetylcholine formation in brain.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

00920-10MG-KC:
00920-BULK:
00920-VAR:
00920-25G:4548174009987
00920-5G:4548174009994

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Certificates of Analysis (COA)

Lot/Batch Number
BCCG9464
BCCB2022
BCBR3519V
BCBL3992V
BCBG2051V

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A Microwave-Assisted Synthesis of (S)-N-Protected Homoserine γ-Lactones from l-Aspartic Acid
Singh SP, et al.
The Journal of Organic Chemistry, 76(16), 6825-6831 (2011)
R. Bakhash et al.
Bios (Madison, N.J.), 49, 13-13 (1978)
E A Kvittingen et al.
Clinica chimica acta; international journal of clinical chemistry, 158(3), 217-227 (1986-08-15)
Excessive excretion of N-acetylaspartic acid in urine is reported in a 6-yr-old child with extensive and progressive cerebral atrophy. The concentration in urine was 947-1,433 mumol/mmol creatinine (controls, n = 10, 5-21 mumol/mmol creatinine) and the daily excretion approximately 3-4
Paola Leone et al.
Science translational medicine, 4(165), 165ra163-165ra163 (2012-12-21)
Canavan disease is a hereditary leukodystrophy caused by mutations in the aspartoacylase gene (ASPA), leading to loss of enzyme activity and increased concentrations of the substrate N-acetyl-aspartate (NAA) in the brain. Accumulation of NAA results in spongiform degeneration of white
Emilie Chamard et al.
Neurosurgical focus, 33(6), E4: 1-E4: 7 (2012-12-04)
Despite negative neuroimaging findings using traditional neuroimaging methods such as MRI and CT, sports-related concussions have been shown to cause neurometabolic changes in both the acute and subacute phases of head injury. However, no prospective clinical study has used an
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