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(S)-3-Methyl-2-phenylbutanoic acid

Also known as: (S)-2-Phenyl-3-methylbutanoic acid, (2S)-3-Methyl-2-phenylbutyric acid, (αS)-α-Isopropylbenzeneacetic acid, Benzeneacetic acid, α-(1-methylethyl)-, (αS)-, (2S)-2-Phenyl-3-methylbutanoic acid

(S)-3-Methyl-2-phenylbutanoic acid (CAS 13490-69-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H14O2 and a molecular weight of 178.22800 g/mol. Key properties include a melting point of 86-88ºC, a boiling point of 282ºC at 760 mmHg, a density of 1.063g/cm3 and a flash point of 179.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
13490-69-2
Jingsj CID
J-1084817-6
Molecular Formula
C11H14O2
Molecular Weight
178.22800 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point86-88ºC
Boiling Point282ºC at 760 mmHg
Density1.063g/cm3
Flash Point179.2ºC
Exact Mass178.09900
PSA37.30000
LogP2.51080
Vapor Pressure0.00163mmHg at 25°C
Refractive Index1.523

Customs & Trade Information

HS Code2916399090
Summary2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of (S)-3-Methyl-2-phenylbutanoic acid?

The CAS number of (S)-3-Methyl-2-phenylbutanoic acid is 13490-69-2.

What are the molecular formula and molecular weight of (S)-3-Methyl-2-phenylbutanoic acid?

(S)-3-Methyl-2-phenylbutanoic acid has molecular formula C11H14O2 and molecular weight 178.22800 g/mol.

What are the upstream and downstream products of (S)-3-Methyl-2-phenylbutanoic acid?

For (S)-3-Methyl-2-phenylbutanoic acid, Upstream Products: 2-Iodopropane, 2-Isopropyl-2-phenylacetic acid, 3-Methyl-2-phenylbutanenitrile.

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)-3-Methyl-2-phenylbutanoic acid (CAS 13490-69-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1084817-6 (accessed 2026-11-09).

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