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(S)-(+)-2-Amino-3-hydroxy-3-methylbutanoic acid

Also known as: 3-Hydroxy-L-valine, L-3-Hydroxyvaline, (S)-2-Amino-3-hydroxy-3-methylbutanoic acid, (2S)-2-Amino-3-hydroxy-3-methylbutanoic acid, L-β-Hydroxyvaline, 3-Methyl-L-threonine

(S)-(+)-2-Amino-3-hydroxy-3-methylbutanoic acid (CAS 2280-27-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H11NO3 and a molecular weight of 133.146 g/mol. Key properties include a melting point of 201 - 203ºC(decom), a boiling point of 284.5±42.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 125.9±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2280-27-5
Jingsj CID
J-4766-5
Molecular Formula
C5H11NO3
Molecular Weight
133.146 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point201 - 203ºC(decom)
Boiling Point284.5±42.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point125.9±27.9 °C
Exact Mass133.073898
PSA83.55000
LogP0.39
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.476
Additional PropertySOLUBLE

Customs & Trade Information

HS Code2922509090
Summary2922509090. other amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function. 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 (S)-(+)-2-Amino-3-hydroxy-3-methylbutanoic acid?

The CAS number of (S)-(+)-2-Amino-3-hydroxy-3-methylbutanoic acid is 2280-27-5.

What are the molecular formula and molecular weight of (S)-(+)-2-Amino-3-hydroxy-3-methylbutanoic acid?

(S)-(+)-2-Amino-3-hydroxy-3-methylbutanoic acid has molecular formula C5H11NO3 and molecular weight 133.146 g/mol.

What are the upstream and downstream products of (S)-(+)-2-Amino-3-hydroxy-3-methylbutanoic acid?

For (S)-(+)-2-Amino-3-hydroxy-3-methylbutanoic acid, Upstream Products: (S)-N-(2-benzoylphenyl)-1-benzylpyrrolidine-2-carboxamide, Glycine, D-Penicillamine; Downstream Products: L-Valine, N-Boc-3-hydroxy-L-valine, Glycine.

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

Last updated:

How to cite: Jingsj. "(S)-(+)-2-Amino-3-hydroxy-3-methylbutanoic acid (CAS 2280-27-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4766-5 (accessed 2026-11-09).

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