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4-chloromercuribenzoic acid

对氯汞苯甲酸

Also known as: p-chloromercuribenzoic acid, PCMB, (4-carboxyphenyl)chloromercury, 4-(chloromercuri)benzoic acid, p-(chloromercuri)benzoic acid, p-Chlormercuribenzoic Acid, 4-Carboxy-phenylquecksilber(1+),Chlorid, 4-Chloromercurio-benzoesaeure

4-chloromercuribenzoic acid (CAS 59-85-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H5ClHgO2 and a molecular weight of 357.15600 g/mol. It is also known as p-chloromercuribenzoic acid, PCMB and (4-carboxyphenyl)chloromercury. Key property: a melting point of 287 °C (dec.)(lit.). It is classified under GHS with signal word Danger and hazard statements H300, H310 and H330 — Fatal if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
59-85-8
Jingsj CID
J-42458-3
Molecular Formula
C7H5ClHgO2
Chinese Name
对氯汞苯甲酸
Molecular Weight
357.15600 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point287 °C (dec.)(lit.)
Exact Mass357.96800
PSA37.30000
LogP1.24640

GHS Safety & Compliance

Acute Toxicity / Health Hazard / Environmental HazardSignal word: Danger
  • H300
  • H310
  • H330 — Fatal if inhaled
  • H373 — May cause damage to organs through prolonged exposure
  • H410 — Very toxic to aquatic life with long lasting effects

Frequently Asked Questions

What is the CAS number of 4-chloromercuribenzoic acid?

The CAS number of 4-chloromercuribenzoic acid is 59-85-8.

What are the molecular formula and molecular weight of 4-chloromercuribenzoic acid?

4-chloromercuribenzoic acid has molecular formula C7H5ClHgO2 and molecular weight 357.15600 g/mol.

Is 4-chloromercuribenzoic acid hazardous?

4-chloromercuribenzoic acid has GHS signal word Danger and hazard statements H300; H310; H330 — Fatal if inhaled.

What are the upstream and downstream products of 4-chloromercuribenzoic acid?

For 4-chloromercuribenzoic acid, Downstream Products: (E)-Methyl 4-(3-methoxy-3-oxoprop-1-enyl)benzoate.

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

Last updated:

How to cite: Jingsj. "4-chloromercuribenzoic acid (CAS 59-85-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42458-3 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.