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Methyl 3-isocyanatobenzoate

Also known as: 3-(Methoxycarbonyl)phenyl isocyanate, 3-Carbomethoxyphenyl isocyanate, 3-Isocyanatobenzoic acid methyl ester, m-Methoxycarbonylphenyl isocyanate, MFCD00037077

Methyl 3-isocyanatobenzoate (CAS 41221-47-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H7NO3 and a molecular weight of 177.15700 g/mol. Key properties include a melting point of 35-38 °C(lit.), a boiling point of 271.4ºC at 760 mmHg, a density of 1.15g/cm3 and a flash point of >110.0 °C. It is classified under GHS with signal word Danger and hazard statements H334 — May cause allergy or asthma symptoms if inhaled. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
41221-47-0
Jingsj CID
J-27030-4
Molecular Formula
C9H7NO3
Molecular Weight
177.15700 g/mol
Category
Organic Acids
Last updated
11/3/2026

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Physicochemical Properties

Melting Point35-38 °C(lit.)
Boiling Point271.4ºC at 760 mmHg
Density1.15g/cm3
Flash Point>110.0 °C
Exact Mass177.04300
PSA55.73000
LogP1.44050
Refractive Index1.528

GHS Safety & Compliance

Health HazardSignal word: Danger
  • H334 — May cause allergy or asthma symptoms if inhaled

Customs & Trade Information

HS Code2929109000
Summary2929109000. other isocyanates. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Methyl 3-isocyanatobenzoate?

The CAS number of Methyl 3-isocyanatobenzoate is 41221-47-0.

What are the molecular formula and molecular weight of Methyl 3-isocyanatobenzoate?

Methyl 3-isocyanatobenzoate has molecular formula C9H7NO3 and molecular weight 177.15700 g/mol.

Is Methyl 3-isocyanatobenzoate hazardous?

Methyl 3-isocyanatobenzoate has GHS signal word Danger and hazard statements H334 — May cause allergy or asthma symptoms if inhaled.

What are the upstream and downstream products of Methyl 3-isocyanatobenzoate?

For Methyl 3-isocyanatobenzoate, Upstream Products: Methyl 3-aminobenzoate, Bis(trichloromethyl) carbonate, Methyl 3-chlorobenzoate.

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 3-isocyanatobenzoate (CAS 41221-47-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27030-4 (accessed 2026-11-09).

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