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4-amino-2-methylbutanoic acid

Also known as: 2-methyl-4-aminobutyric acid, (D,L)-4-amino-2-methyl-butanoic acid, 4-Amino-2-Methyl-Butanoic Acid, Butanoic acid, 4-amino-2-methyl-

4-amino-2-methylbutanoic acid (CAS 42453-21-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H11NO2 and a molecular weight of 117.14800 g/mol. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
42453-21-4
Jingsj CID
J-1360348-0
Molecular Formula
C5H11NO2
Molecular Weight
117.14800 g/mol
Category
Organic Acids
Last updated
11/2/2026
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Physicochemical Properties

Exact Mass131.09500
PSA63.32000
LogP0.23300

Customs & Trade Information

HS Code2922499990
SummaryHS:2922499990 other amino-acids, other than those containing more than one kind of oxygen function, and their esters; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-amino-2-methylbutanoic acid?

The CAS number of 4-amino-2-methylbutanoic acid is 42453-21-4.

What are the molecular formula and molecular weight of 4-amino-2-methylbutanoic acid?

4-amino-2-methylbutanoic acid has molecular formula C5H11NO2 and molecular weight 117.14800 g/mol.

What are the upstream and downstream products of 4-amino-2-methylbutanoic acid?

For 4-amino-2-methylbutanoic acid, Upstream Products: Tiglic acid, Ethyl Tiglate, Formic Acid; Downstream Products: 4-Amino-2-methyl-1-butanol, 3-Methyl-2-pyrrolidinone.

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

Last updated:

How to cite: Jingsj. "4-amino-2-methylbutanoic acid (CAS 42453-21-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1360348-0 (accessed 2026-11-09).

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