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2-mercaptobenzyl alcohol

Also known as: (2-sulfanylphenyl)methanol, 2-Mercaptobenzyl Alcohol, MFCD00014448, 2-(hydroxymethyl)benzenethiol, 2-(hydroxymethyl)thiophenol, 2-mercaptobenzenemethanol, 2-sulfanylbenzenemethanol, thiosalicyl alcohol, o-mercaptobenzyl alcohol, benzenemethanol, 2-mercapto-

2-mercaptobenzyl alcohol (CAS 4521-31-7) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C7H8OS and a molecular weight of 140.20300 g/mol. Key properties include a melting point of 31-32 °C(lit.), a boiling point of 94-96°C 0,2mm, a density of 1.21 g/mL at 25 °C(lit.) and a flash point of >110.0 °C. It is classified under GHS with signal word Danger and hazard statements H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
4521-31-7
Jingsj CID
J-20376-9
Molecular Formula
C7H8OS
Molecular Weight
140.20300 g/mol
Category
Solvents
Last updated
11/3/2026
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Physicochemical Properties

Melting Point31-32 °C(lit.)
Boiling Point94-96°C 0,2mm
Density1.21 g/mL at 25 °C(lit.)
Flash Point>110.0 °C
Exact Mass140.03000
PSA59.03000
LogP1.46760
Refractive Indexn20/D 1.612(lit.)

GHS Safety & Compliance

CorrosionSignal word: Danger
  • H318 — Causes serious eye damage

Frequently Asked Questions

What is the CAS number of 2-mercaptobenzyl alcohol?

The CAS number of 2-mercaptobenzyl alcohol is 4521-31-7.

What are the molecular formula and molecular weight of 2-mercaptobenzyl alcohol?

2-mercaptobenzyl alcohol has molecular formula C7H8OS and molecular weight 140.20300 g/mol.

Is 2-mercaptobenzyl alcohol hazardous?

2-mercaptobenzyl alcohol has GHS signal word Danger and hazard statements H318 — Causes serious eye damage.

What are the upstream and downstream products of 2-mercaptobenzyl alcohol?

For 2-mercaptobenzyl alcohol, Upstream Products: Methyl thiosalicylate, Thiosalicylic acid, (2-methylsulfanylphenyl)methanol; Downstream Products: (2-methylsulfanylphenyl)methanol, (2-{[2-(hydroxymethyl)phenyl]disulfanyl}phenyl)methanol, 2-Methylbenzo[b]thiophene.

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

Last updated:

How to cite: Jingsj. "2-mercaptobenzyl alcohol (CAS 4521-31-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20376-9 (accessed 2026-11-09).

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