Aspartic Acid

CAS 56-84-8C4H7NO4MW 133.04 g/mol

Aspartic Acid (CAS 56-84-8) — formula C4H7NO4, molecular weight 133.04 g/mol.

Product Overview

CAS Number	56-84-8
Molecular Formula	C4H7NO4
Molecular Weight	133.04 g/mol
Melting Point	270
LogP	-3.89

Technical Profile

What this product is

Aspartic Acid is a chemical compound with CAS registry number 56-84-8 and molecular formula C4H7NO4 (molecular weight 133.04 g/mol).

Identification

CAS number: 56-84-8

Its molecular formula C4H7NO4 comprises 4 C, 7 H, 1 N, 4 O atoms.

Also known as: Aspartic Acid · L-天冬氨酸，L-天冬酸

Frequently Asked Questions

What is the CAS number of Aspartic Acid?

The CAS registry number of Aspartic Acid is 56-84-8.

What is the molecular formula and molecular weight of Aspartic Acid?

Molecular formula C4H7NO4, molecular weight 133.04 g/mol.

What other names is Aspartic Acid known by?

It is also registered under: Aspartic Acid, L-天冬氨酸，L-天冬酸.

PubChem Public Data

Independent reference data for Aspartic Acid (CAS 56-84-8), compiled from public chemistry databases.

Registry identifiers across databases

CAS Registry Number	56-84-8
PubChem CID	5960
Molecular formula	C4H7NO4
Molecular weight	133.04 g/mol
IUPAC name	(2S)-2-aminobutanedioic acid
InChIKey	CKLJMWTZIZZHCS-REOHCLBHSA-N
UNII (FDA)	30KYC7MIAI
ChEBI ID	CHEBI:17053
FEMA number	3656
JECFA number	1429

Computed descriptors

Molecular Weight	133.10
XLogP3	-2.8
Hydrogen Bond Donor Count	3
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	3
Exact Mass	133.03750770
Monoisotopic Mass	133.03750770
Topological Polar Surface Area	101
Heavy Atom Count	9

Physicochemical values on record

Melting Point	270
Melting Point	270-271 °C
Melting Point	270 °C
Solubility	5390
Solubility	In water, 5,360 mg/L at 25 °C
Solubility	5.39 mg/mL
Density	1.6603 at 13 °C
Density	1.7 g/cm³
Vapor Pressure	0.0000013 [mmHg]
LogP	-3.89

Documented uses on record

Synonyms and trade names

L-aspartic acid; aspartic acid; 56-84-8; (2S)-2-aminobutanedioic acid; Asparagic acid; L-Aminosuccinic acid; (S)-2-Aminosuccinic acid; Asparaginic acid; L-Asparaginic acid; L-Asparagic acid; (S)-Aspartic acid; Aspartic acid, L-; (S)-Aminobutanedioic acid; L-Asparaginsaeure; Acidum asparticum; L-(+)-Aspartic acid

Regulatory listings held on file

Regulatory & Food Contact	EU Flavoring substances FDA Substance added to food: FLAVOR ENHANCER, FLAVORING AGENT OR ADJUVANT, NUTRIENT SUPPLEMENT Flavoring Agents FLAVOURING_AGENT: Flavouring Agent No safety concern at current levels of intake when used as a flavouring agent TRS 928-JECFA 63/98
GHS notification summary	94.4% (340 / 360)

GHS hazard classification

GHS notification summary	94.4% (340 / 360)

This chemical does not meet GHS hazard criteria for 94.4% (340 of 360) of all reports.

Reported as not meeting GHS hazard criteria by 340 of 360 companies (only 5.6% companies provided GHS information). For more detailed information, please visit ECHA C&L website.

What the public record says

Aspartic Acid is identified by CAS 56-84-8, molecular formula C4H7NO4 and molecular weight 133.04 g/mol. UNII 30KYC7MIAI; ChEBI 17053; InChIKey CKLJMWTZIZZHCS-REOHCLBHSA-N. Melting Point: 270; Melting Point: 270-271 °C; Melting Point: 270 °C.

Physical description and handling notes

Source: PubChem / Wikidata; the batch COA governs where values differ.