1-chloro-2-isocyanato-4-methylbenzene
2-氯-5-甲基苯基异氰酸酯
Also known as: 2-Chloro-5-methylphenyl isocyanate, 4-Chloro-3-isocyanatotoluene, Benzene, 1-chloro-2-isocyanato-4-methyl-, MFCD01863693, 2-CHLORO-5-METHYLPHENYL ISOCYANATE 98, 1-chloro-2-isocyanato-4-Methylbenzene
1-chloro-2-isocyanato-4-methylbenzene (CAS 40398-03-6) 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 167.592 g/mol. It is also known as 2-Chloro-5-methylphenyl isocyanate, 4-Chloro-3-isocyanatotoluene and Benzene, 1-chloro-2-isocyanato-4-methyl-. Key properties include a melting point of 39-42ºC(lit.), a boiling point of 231.5±20.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 83.6±11.0 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 40398-03-6
- Jingsj CID
- J-31266-8
- Molecular Formula
- C8H6ClNO
- Chinese Name
- 2-氯-5-甲基苯基异氰酸酯
- Molecular Weight
- 167.592 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 39-42ºC(lit.) |
|---|---|
| Boiling Point | 231.5±20.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 83.6±11.0 °C |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of 1-chloro-2-isocyanato-4-methylbenzene?
The CAS number of 1-chloro-2-isocyanato-4-methylbenzene is 40398-03-6.
What are the molecular formula and molecular weight of 1-chloro-2-isocyanato-4-methylbenzene?
1-chloro-2-isocyanato-4-methylbenzene has molecular formula C8H6ClNO and molecular weight 167.592 g/mol.
Is 1-chloro-2-isocyanato-4-methylbenzene hazardous?
1-chloro-2-isocyanato-4-methylbenzene has GHS signal word Danger.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-chloro-2-isocyanato-4-methylbenzene (CAS 40398-03-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31266-8 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.