1-Isocyanato-4-(isocyanatomethyl)benzene

4-异氰酸甲基苯异氰酸酯

Also known as: alpha 4-tolylene diisocyanate, tolylene-α,4-diisocyanate, tolylene-alpha,4-diisocyanate, 4-isocyanato-benzyl isocyanate, benzene, 1-isocyanato-4-(isocyanatomethyl)-, benzene, 1-isocyanato-4-(isocyanatomethyl)- (9CI), 1-isocyanate-4-(isocyanatomethyl)benzene, Tolylendiisocyanat, p-tolylene diisocyanate, 4-Isocyanato-benzylisocyanat, ALPHA 4-TOLYLENE DIISOCYANATE

1-Isocyanato-4-(isocyanatomethyl)benzene (CAS 99741-73-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H6N2O2 and a molecular weight of 174.15600 g/mol. It is also known as alpha 4-tolylene diisocyanate, tolylene-α,4-diisocyanate and tolylene-alpha,4-diisocyanate. Key properties include a boiling point of 152ºC19 mm Hg(lit.), a density of 1.218 g/mL at 25ºC(lit.) and a flash point of >230 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

99741-73-8

Jingsj CID

J-1990426-1

Molecular Formula

C₉H₆N₂O₂

Chinese Name

4-异氰酸甲基苯异氰酸酯

Molecular Weight

174.15600 g/mol

Category

Organic Acids

Last updated

8/21/2026