tert-Butyl isocyanate

叔丁基异氰酸酯

Also known as: 1,1-dimethylethyl isocyanate, 2-isocyanato-2-methylpropane, Isocyanic acid tert-butyl ester, t-butyl isocyanate, tert-Butyl isocyanate, stab., TERT-BUTYL ISOCYANATE 98%, left-Butyl isocyanate, t-C4H9NCO, Tertbuty Isocyanate

CAS No.
1609-86-5
Jingsj CID
J-14449-2
Molecular Formula
C5H9NO
Chinese Name
叔丁基异氰酸酯
Molecular Weight
99.13110 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point<-25ºC
Boiling Point85-86 °C(lit.)
Density0.868 g/mL at 25 °C(lit.)
Flash Point24 °F

GHS Safety & Compliance

Flammable / Corrosion / Acute Toxicity / Health HazardSignal word: Danger

Frequently Asked Questions

What is the CAS number of tert-Butyl isocyanate?

1609-86-5

What are the molecular formula and molecular weight of tert-Butyl isocyanate?

C5H9NO, molecular weight 99.13110 g/mol

Is tert-Butyl isocyanate hazardous?

Danger

Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026