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3-Chlorophenylacetic acid

Also known as: (3-Chlorophenyl)acetic acid, 2-(3-chlorophenyl)acetic acid, 3-Chlorobenzeneacetic acid, m-Chlorophenylacetic acid, Benzeneacetic acid, 3-chloro-, MFCD00004332, EINECS 217-520-0

3-Chlorophenylacetic acid (CAS 1878-65-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H7ClO2 and a molecular weight of 170.593 g/mol. Key properties include a melting point of 76-79 °C(lit.), a boiling point of 294.1±15.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 131.7±20.4 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1878-65-5
Jingsj CID
J-4265-9
Molecular Formula
C8H7ClO2
Molecular Weight
170.593 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point76-79 °C(lit.)
Boiling Point294.1±15.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point131.7±20.4 °C
Exact Mass170.013458
PSA37.30000
LogP2.10
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.570
Additional Propertymethanol: 0.1 g/mL, clear, colorless

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

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 3-Chlorophenylacetic acid?

The CAS number of 3-Chlorophenylacetic acid is 1878-65-5.

What are the molecular formula and molecular weight of 3-Chlorophenylacetic acid?

3-Chlorophenylacetic acid has molecular formula C8H7ClO2 and molecular weight 170.593 g/mol.

Is 3-Chlorophenylacetic acid hazardous?

3-Chlorophenylacetic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 3-Chlorophenylacetic acid?

For 3-Chlorophenylacetic acid, Upstream Products: 3-Chlorobenzyl chloride, Ethyl 3-chlorophenylacetate, 3-Chlorobenzyl cyanide; Downstream Products: 2-(5-chloro-2-nitrophenyl)acetic acid, ethyl 4-(3-chlorophenyl)-3-oxobutanoate, 3-Chlorobenzaldehyde.

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

Last updated:

How to cite: Jingsj. "3-Chlorophenylacetic acid (CAS 1878-65-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4265-9 (accessed 2026-11-09).

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