2,4'-Methylenediphenyl diisocyanate

2,4'-亚甲基二苯基二异氰酸酯

Also known as: 1-Isocyanato-2-[(4-isocyanatophenyl)methyl]benzene, o-(p-Isocyanatobenzyl)phenyl isocyanate, 2,4'-Methylenebis(phenyl isocyanate), 2,4'-Diisocyanatodiphenylmethane, Diphenylmethane-2,4'-diisocyanate, 2,4'-MDI, Benzene, 1-isocyanato-2-[(4-isocyanatophenyl)methyl]-, 2,4'-Methylenediphenylene diisocyanate

2,4'-Methylenediphenyl diisocyanate (CAS 5873-54-1) 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. It is also known as 1-Isocyanato-2-[(4-isocyanatophenyl)methyl]benzene, o-(p-Isocyanatobenzyl)phenyl isocyanate and 2,4'-Methylenebis(phenyl isocyanate). Key properties include a melting point of 36-40ºC(lit.), a boiling point of 376.3±35.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 155.3±31.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5873-54-1
Jingsj CID
J-1022644-9
Molecular Formula
C15H10N2O2
Chinese Name
2,4'-亚甲基二苯基二异氰酸酯
Molecular Weight
250.252 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point36-40ºC(lit.)
Boiling Point376.3±35.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point155.3±31.3 °C

Frequently Asked Questions

What is the CAS number of 2,4'-Methylenediphenyl diisocyanate?

The CAS number of 2,4'-Methylenediphenyl diisocyanate is 5873-54-1.

What are the molecular formula and molecular weight of 2,4'-Methylenediphenyl diisocyanate?

2,4'-Methylenediphenyl diisocyanate has molecular formula C15H10N2O2 and molecular weight 250.252 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2,4'-Methylenediphenyl diisocyanate (CAS 5873-54-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1022644-9 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.