m-Tolyl isocyanate
间甲苯异氰酸酯
Also known as: 1-Isocyanato-3-methylbenzene, 3-Methylphenyl isocyanate, 3-Tolyl isocyanate, m-Isocyanatotoluene, Isocyanic acid m-tolyl ester, Benzene, 1-isocyanato-3-methyl-
m-Tolyl isocyanate (CAS 621-29-4) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C8H7NO and a molecular weight of 133.147 g/mol. It is also known as 1-Isocyanato-3-methylbenzene, 3-Methylphenyl isocyanate and 3-Tolyl isocyanate. Key properties include a melting point of 195 - 198ºC, a boiling point of 197.2±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 66.8±21.3 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 621-29-4
- Jingsj CID
- J-1375631-6
- Molecular Formula
- C8H7NO
- Chinese Name
- 间甲苯异氰酸酯
- Molecular Weight
- 133.147 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 195 - 198ºC |
|---|---|
| Boiling Point | 197.2±9.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 66.8±21.3 °C |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of m-Tolyl isocyanate?
The CAS number of m-Tolyl isocyanate is 621-29-4.
What are the molecular formula and molecular weight of m-Tolyl isocyanate?
m-Tolyl isocyanate has molecular formula C8H7NO and molecular weight 133.147 g/mol.
Is m-Tolyl isocyanate hazardous?
m-Tolyl isocyanate 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. "m-Tolyl isocyanate (CAS 621-29-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1375631-6 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.