2-Mercaptophenylacetic acid

Also known as: 2-Mercaptobenzeneacetic acid, o-Mercaptophenylacetic acid, (2-Mercaptophenyl)acetic acid, 2-(2-sulfanylphenyl)acetic acid, Benzeneacetic acid, 2-mercapto-

2-Mercaptophenylacetic acid (CAS 39161-85-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H8O2S and a molecular weight of 168.21300 g/mol. Key properties include a melting point of 90-92ºC, a boiling point of 334.7ºC at 760 mmHg, a density of 1.299g/cm3 and a flash point of 156.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 39161-85-8
Jingsj CID: J-1432053-7
Molecular Formula: C₈H₈O₂S
Molecular Weight: 168.21300 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	90-92ºC
Boiling Point	334.7ºC at 760 mmHg
Density	1.299g/cm3
Flash Point	156.2ºC
Exact Mass	168.02500
PSA	76.10000
LogP	1.60240
Refractive Index	1.62

Customs & Trade Information

HS Code	2930909090
Summary	2930909090. other organo-sulphur compounds. 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 2-Mercaptophenylacetic acid?

The CAS number of 2-Mercaptophenylacetic acid is 39161-85-8.

What are the molecular formula and molecular weight of 2-Mercaptophenylacetic acid?

2-Mercaptophenylacetic acid has molecular formula C8H8O2S and molecular weight 168.21300 g/mol.

What are the upstream and downstream products of 2-Mercaptophenylacetic acid?

For 2-Mercaptophenylacetic acid, Upstream Products: 2-Iodophenylacetic acid, Potassium ethylxanthate, 2-Aminophenylacetic acid; Downstream Products: 2-Mercaptopyridine, 2-mercaptobenzyl alcohol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-Mercaptophenylacetic acid (CAS 39161-85-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1432053-7 (accessed 2026-11-09).

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