3-chloro-2-methylphenyl isocyanate

3-氯-2-甲基异氰酸苯酯

Also known as: 1-chloro-3-isocyanato-2-methylbenzene, 2-Chloro-6-isocyanatotoluene, 3-Chloro-2-methylphenyl isocyanate 99%, 3-chloro-o-tolyl isocyanate, Benzene, 1-chloro-3-isocyanato-2-methyl-, MFCD00037036

3-chloro-2-methylphenyl isocyanate (CAS 40397-90-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H6ClNO and a molecular weight of 167.59200 g/mol. It is also known as 1-chloro-3-isocyanato-2-methylbenzene, 2-Chloro-6-isocyanatotoluene and 3-Chloro-2-methylphenyl isocyanate 99%. Key properties include a boiling point of 95 °C9 mm Hg(lit.), a density of 1.247 g/mL at 25 °C(lit.) and a flash point of 230 °F. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
40397-90-8
Jingsj CID
J-49659-3
Molecular Formula
C8H6ClNO
Chinese Name
3-氯-2-甲基异氰酸苯酯
Molecular Weight
167.59200 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point95 °C9 mm Hg(lit.)
Density1.247 g/mL at 25 °C(lit.)
Flash Point230 °F

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 3-chloro-2-methylphenyl isocyanate?

The CAS number of 3-chloro-2-methylphenyl isocyanate is 40397-90-8.

What are the molecular formula and molecular weight of 3-chloro-2-methylphenyl isocyanate?

3-chloro-2-methylphenyl isocyanate has molecular formula C8H6ClNO and molecular weight 167.59200 g/mol.

Is 3-chloro-2-methylphenyl isocyanate hazardous?

3-chloro-2-methylphenyl isocyanate has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "3-chloro-2-methylphenyl isocyanate (CAS 40397-90-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49659-3 (accessed 2026-10-22).

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