Skip to main content

Cyanoacetic acid

Also known as: 2-cyanoacetic acid, cyanoethanoic acid, malonic mononitrile, monocyanoacetic acid, NSC 5571, Acetic acid, 2-cyano-, Cyano-acetic acid

Cyanoacetic acid (CAS 372-09-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H3NO2 and a molecular weight of 85.061 g/mol. Key properties include a melting point of 65 °C, a boiling point of 318.5±0.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 107.8±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H332 — Harmful if inhaled and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
372-09-8
Jingsj CID
J-38439-4
Molecular Formula
C3H3NO2
Molecular Weight
85.061 g/mol
Category
Organic Acids
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point65 °C
Boiling Point318.5±0.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point107.8±0.0 °C
Exact Mass85.016380
PSA61.09000
LogP-0.76
Vapor Pressure0.0±1.4 mmHg at 25°C
Refractive Index1.440
Additional Property1000 g/L (20 ºC)

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger
  • H302 — Harmful if swallowed
  • H332 — Harmful if inhaled
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2926909090
SummaryHS:2926909090 other nitrile-function compounds 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 Cyanoacetic acid?

The CAS number of Cyanoacetic acid is 372-09-8.

What are the molecular formula and molecular weight of Cyanoacetic acid?

Cyanoacetic acid has molecular formula C3H3NO2 and molecular weight 85.061 g/mol.

Is Cyanoacetic acid hazardous?

Cyanoacetic acid has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H332 — Harmful if inhaled; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of Cyanoacetic acid?

For Cyanoacetic acid, Upstream Products: Ethyl cyanoacetate, Malononitrile, L-Aspartic acid; Downstream Products: 2-(1,2,3,4-tetrahydroisoquinolin-1-yl)acetonitrile, Sodium cyanoacetate, 2-Octyl cyanoacetate.

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

Last updated:

How to cite: Jingsj. "Cyanoacetic acid (CAS 372-09-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38439-4 (accessed 2026-11-09).

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