1,3-Phenylene diisocyanate
间苯二异氰酸酯
Also known as: 1,3-diisocyanatobenzene, benzene 1,3-diisocyanate, m-phenylene diisocyanate, Nacconate 400, isocyanic acid, m-phenylene ester
1,3-Phenylene diisocyanate (CAS 123-61-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H4N2O2 and a molecular weight of 160.13000 g/mol. It is also known as 1,3-diisocyanatobenzene, benzene 1,3-diisocyanate and m-phenylene diisocyanate. Key properties include a melting point of 49-51 °C(lit.), a boiling point of 121 °C25 mm Hg(lit.), a density of 1.17g/cm3 and a flash point of >230 °F. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 123-61-5
- Jingsj CID
- J-1326958-4
- Molecular Formula
- C8H4N2O2
- Chinese Name
- 间苯二异氰酸酯
- Molecular Weight
- 160.13000 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 49-51 °C(lit.) |
|---|---|
| Boiling Point | 121 °C25 mm Hg(lit.) |
| Density | 1.17g/cm3 |
| Flash Point | >230 °F |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of 1,3-Phenylene diisocyanate?
The CAS number of 1,3-Phenylene diisocyanate is 123-61-5.
What are the molecular formula and molecular weight of 1,3-Phenylene diisocyanate?
1,3-Phenylene diisocyanate has molecular formula C8H4N2O2 and molecular weight 160.13000 g/mol.
Is 1,3-Phenylene diisocyanate hazardous?
1,3-Phenylene diisocyanate 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. "1,3-Phenylene diisocyanate (CAS 123-61-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1326958-4 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.