1,4-Diisocyanatobutane
1,4-二异氰酸根丁烷
Also known as: 1,4-Butanediisocyanate, Tetramethylene diisocyanate, 1,4-diisocyanato-butane, 1,4-bisisocyanatobutane, butane-1,4-diisocyanate, MFCD00075559
1,4-Diisocyanatobutane (CAS 4538-37-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H8N2O2 and a molecular weight of 140.140 g/mol. It is also known as 1,4-Butanediisocyanate, Tetramethylene diisocyanate and 1,4-diisocyanato-butane. Key properties include a melting point of 0ºC, a boiling point of 220.5±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 106.7±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4538-37-8
- Jingsj CID
- J-48745-8
- Molecular Formula
- C6H8N2O2
- Chinese Name
- 1,4-二异氰酸根丁烷
- Molecular Weight
- 140.140 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 0ºC |
|---|---|
| Boiling Point | 220.5±0.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 106.7±0.0 °C |
| Exact Mass | 140.058578 |
| PSA | 58.86000 |
| LogP | 2.27 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.484 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Frequently Asked Questions
What is the CAS number of 1,4-Diisocyanatobutane?
The CAS number of 1,4-Diisocyanatobutane is 4538-37-8.
What are the molecular formula and molecular weight of 1,4-Diisocyanatobutane?
1,4-Diisocyanatobutane has molecular formula C6H8N2O2 and molecular weight 140.140 g/mol.
Is 1,4-Diisocyanatobutane hazardous?
1,4-Diisocyanatobutane has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.
What are the upstream and downstream products of 1,4-Diisocyanatobutane?
For 1,4-Diisocyanatobutane, Upstream Products: Adipoyl chloride, 1,4-butanediamine, 1,4-Dichlorobutane.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,4-Diisocyanatobutane (CAS 4538-37-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48745-8 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.