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Methyl cyanoformate

Also known as: Carbonocyanidic acid, methyl ester, Cyanoformic acid, methyl ester, Cyanoformate methyl ester, Formic acid, cyano-, methyl ester, Methyl carbonocyanidate, Methyl cyanomethanoate, Cyklon A, CH3OC(O)CN

Methyl cyanoformate (CAS 17640-15-2) 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 °Cd ec.), a boiling point of 100.5±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 26.1±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H300 and H310. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17640-15-2
Jingsj CID
J-1991388-3
Molecular Formula
C3H3NO2
Molecular Weight
85.061 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point°Cd ec.)
Boiling Point100.5±0.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point26.1±0.0 °C
Exact Mass85.016380
PSA50.09000
LogP-0.26
Vapor Pressure36.6±0.1 mmHg at 25°C
Refractive Index1.387

GHS Safety & Compliance

Flammable / Acute ToxicitySignal word: Danger
  • H226 — Flammable liquid and vapour
  • H300
  • H310
  • H330 — Fatal if inhaled
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation

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 Methyl cyanoformate?

The CAS number of Methyl cyanoformate is 17640-15-2.

What are the molecular formula and molecular weight of Methyl cyanoformate?

Methyl cyanoformate has molecular formula C3H3NO2 and molecular weight 85.061 g/mol.

Is Methyl cyanoformate hazardous?

Methyl cyanoformate has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H300; H310.

What are the upstream and downstream products of Methyl cyanoformate?

For Methyl cyanoformate, Upstream Products: dimethyl 1,2,4,5-tetrazine-3,6-dicarboxylate, 1,4-Diazabicyclo[2.2.2]octane, Trimethylsilyl cyanide; Downstream Products: Methyl 1-methyl-1,2,3-triazole-5-carboxylate, Methyl 2-methyl-2H-1,2,3-triazole-4-carboxylate, Methyl 1-methyl-1H-1,2,3-triazole-4-carboxylate.

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

Last updated:

How to cite: Jingsj. "Methyl cyanoformate (CAS 17640-15-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991388-3 (accessed 2026-11-09).

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