4,4'-Diphenylmethane diisocyanate
Also known as: Methylene diphenyl diisocyanate, 4,4'-MDI, 4,4'-Methylenebis(phenyl isocyanate), Methylenediphenyl 4,4'-diisocyanate, 1,1'-Methylenebis(4-isocyanatobenzene), Bis(4-isocyanatophenyl)methane, Isonate, Rubinate 44, Desmodur 44, Caradate 30, Hylene M50, p,p'-Diphenylmethane diisocyanate
4,4'-Diphenylmethane diisocyanate (CAS 101-68-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C15H10N2O2 and a molecular weight of 250.252 g/mol. Key properties include a melting point of 38-44 °C, a boiling point of 392 ºC, a density of 1.19 and a flash point of 196 ºC. It is classified under GHS with signal word Danger and hazard statements H315 — Causes skin irritation, H317 — May cause an allergic skin reaction and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 101-68-8
- Jingsj CID
- J-1100471-0
- Molecular Formula
- C15H10N2O2
- Molecular Weight
- 250.252 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 38-44 °C |
|---|---|
| Boiling Point | 392 ºC |
| Density | 1.19 |
| Flash Point | 196 ºC |
| Exact Mass | 250.074234 |
| PSA | 58.86000 |
| LogP | 4.93 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.588 |
| Additional Property | decomposes |
| Additional Property | 37℃ |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H317 — May cause an allergic skin reaction
- H319 — Causes serious eye irritation
- H332 — Harmful if inhaled
- H334 — May cause allergy or asthma symptoms if inhaled
- H335 — May cause respiratory irritation
- H351 — Suspected of causing cancer
- H373 — May cause damage to organs through prolonged exposure
Customs & Trade Information
| HS Code | 2929109000 |
|---|---|
| Summary | 2929109000. other isocyanates. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4,4'-Diphenylmethane diisocyanate?
The CAS number of 4,4'-Diphenylmethane diisocyanate is 101-68-8.
What are the molecular formula and molecular weight of 4,4'-Diphenylmethane diisocyanate?
4,4'-Diphenylmethane diisocyanate has molecular formula C15H10N2O2 and molecular weight 250.252 g/mol.
Is 4,4'-Diphenylmethane diisocyanate hazardous?
4,4'-Diphenylmethane diisocyanate has GHS signal word Danger and hazard statements H315 — Causes skin irritation; H317 — May cause an allergic skin reaction; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 4,4'-Diphenylmethane diisocyanate?
For 4,4'-Diphenylmethane diisocyanate, Upstream Products: 4,4'-Methylenedianiline, Diphenyl (methylenedi-4,1-phenylene)dicarbamate; Downstream Products: Diphenyl (methylenedi-4,1-phenylene)dicarbamate, Triethyl phosphate, 1,1,1',1'-Tetramethyl-4,4'-(methylenedi-p-phenylene)disemicarbazide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4,4'-Diphenylmethane diisocyanate (CAS 101-68-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1100471-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.