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N-Acetyl-L-aspartic acid

Also known as: N-Acetylaspartate, Acetylaspartic acid, Acetyl-L-aspartic acid, (2S)-2-acetamidobutanedioic acid, (2S)-2-Acetamidosuccinic acid, Ac-Asp-OH, AC-ASP-OH, L-Aspartic acid, N-acetyl-, N-Acetylaspartic acid, MFCD00020500

N-Acetyl-L-aspartic acid (CAS 997-55-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H9NO5 and a molecular weight of 175.139 g/mol. Key properties include a melting point of 137-140 °C(lit.), a boiling point of 329.1±52.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 152.8±30.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
997-55-7
Jingsj CID
J-20910-9
Molecular Formula
C6H9NO5
Molecular Weight
175.139 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point137-140 °C(lit.)
Boiling Point329.1±52.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point152.8±30.7 °C
Exact Mass175.048065
PSA103.70000
LogP-0.09
Vapor Pressure0.0±1.6 mmHg at 25°C
Refractive Index1.538

Activity & Biological Data

TargetHuman Endogenous Metabolite
Additional Information[1]. Birken DL, et al. N-acetyl-L-aspartic acid: a literature review of a compound prominent in 1H-NMR spectroscopic studies of brain. Neurosci Biobehav Rev. 1989 Spring;13(1):23-31.

Customs & Trade Information

HS Code2924199090
Summary2924199090. other acyclic amides (including acyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of N-Acetyl-L-aspartic acid?

The CAS number of N-Acetyl-L-aspartic acid is 997-55-7.

What are the molecular formula and molecular weight of N-Acetyl-L-aspartic acid?

N-Acetyl-L-aspartic acid has molecular formula C6H9NO5 and molecular weight 175.139 g/mol.

What are the upstream and downstream products of N-Acetyl-L-aspartic acid?

For N-Acetyl-L-aspartic acid, Upstream Products: Acetyl chloride, N-Acetyl-L-aspartic acid anhydride, L-Aspartic acid; Downstream Products: N-Acetyl-L-aspartic acid anhydride, L-Aspartic acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "N-Acetyl-L-aspartic acid (CAS 997-55-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20910-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.