4-Methylphenyl isocyanate… (CAS 622-58-2)

4-Methylphenyl isocyanate molecular structure — Molecular structure

The Sigma-Aldrich catalog lists 3 grades and pack sizes of 4-Methylphenyl isocyanate (CAS 622-58-2). Pick the code you need and request a quote for price and lead time from Klar Chem.

CAS	622-58-2
Molecular formula	C8H7NO
Molecular weight	133.15 g/mol
IUPAC name	1-isocyanato-4-methylbenzene
Synonyms	p-Tolyl isocyanate · 1-Isocyanato-4-methylbenzene · 4-Tolyl isocyanate · p-Isocyanatotoluene · p-Toluene isocyanate · p-Methylphenyl isocyanate

Safety & Hazards (GHS) Danger

Corrosive

Acute toxic

Environmental hazard

H302 Harmful if swallowed
H314 Causes severe skin burns and eye damage
H317 May cause an allergic skin reaction
H318 Causes serious eye damage
H330 Fatal if inhaled
H335 May cause respiratory irritation
H400 Very toxic to aquatic life

⚠️ For information only (source: EU CLP harmonised classification and ECHA notifications, via PubChem); not a substitute for the official Safety Data Sheet (SDS).

Catalog codes and grades

Brand	Product / grade	Code
Sigma	PARA-TOLYL ISOCYANATE, 99%	143634-100G 143634-25G 143634-5G	Request Quote

For information only; specifications and availability are confirmed at quotation. Prices are not listed.