4-Methylphenyl isothiocyanate

对甲苯异硫氰酸酯

Also known as: p-Tolyl isothiocyanate, Isothiocyanic acid p-tolyl ester, Isothiocyanic acid 4-methylphenyl ester, 1-isothiocyanato-4-methylbenzene, 4-Methylphenyl isothiocyanate, p-Tolyl isothiocyanate, 4-Tolyl isothiocyanate

4-Methylphenyl isothiocyanate (CAS 622-59-3) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C8H7NS and a molecular weight of 149.21300 g/mol. It is also known as p-Tolyl isothiocyanate, Isothiocyanic acid p-tolyl ester and Isothiocyanic acid 4-methylphenyl ester. Key properties include a melting point of 25-26 °C(lit.), a boiling point of 237 °C(lit.), a density of 1.02 g/cm3 and a flash point of 107 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
622-59-3
Jingsj CID
J-44619-4
Molecular Formula
C8H7NS
Chinese Name
对甲苯异硫氰酸酯
Molecular Weight
149.21300 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Melting Point25-26 °C(lit.)
Boiling Point237 °C(lit.)
Density1.02 g/cm3
Flash Point107 °C

GHS Safety & Compliance

Irritant / Health HazardSignal word: Danger

Frequently Asked Questions

What is the CAS number of 4-Methylphenyl isothiocyanate?

The CAS number of 4-Methylphenyl isothiocyanate is 622-59-3.

What are the molecular formula and molecular weight of 4-Methylphenyl isothiocyanate?

4-Methylphenyl isothiocyanate has molecular formula C8H7NS and molecular weight 149.21300 g/mol.

Is 4-Methylphenyl isothiocyanate hazardous?

4-Methylphenyl isothiocyanate has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "4-Methylphenyl isothiocyanate (CAS 622-59-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44619-4 (accessed 2026-10-22).

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