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p-Tolyl isocyanate

Also known as: 4-methylphenyl isocyanate, 1-isocyanato-4-methylbenzene, 4-isocyanatotoluene, p-methylphenyl isocyanate, p-toluene isocyanate, para-tolyl isocyanate, 4-tolyl isocyanate, p-Tolylcarbonimide, OCNR D1

p-Tolyl isocyanate (CAS 622-58-2) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C8H7NO and a molecular weight of 133.147 g/mol. Key properties include a boiling point of 190.6±19.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 63.9±24.1 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
622-58-2
Jingsj CID
J-14419-4
Molecular Formula
C8H7NO
Molecular Weight
133.147 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point190.6±19.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point63.9±24.1 °C
Exact Mass133.052765
PSA29.43000
LogP3.04
Vapor Pressure0.5±0.4 mmHg at 25°C
Refractive Index1.519

GHS Safety & Compliance

Irritant / Health HazardSignal word: Danger
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H332 — Harmful if inhaled
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H334 — May cause allergy or asthma symptoms if inhaled
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2929109000
Summary2929109000. other isocyanates. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of p-Tolyl isocyanate?

The CAS number of p-Tolyl isocyanate is 622-58-2.

What are the molecular formula and molecular weight of p-Tolyl isocyanate?

p-Tolyl isocyanate has molecular formula C8H7NO and molecular weight 133.147 g/mol.

Is p-Tolyl isocyanate hazardous?

p-Tolyl isocyanate has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.

What are the upstream and downstream products of p-Tolyl isocyanate?

For p-Tolyl isocyanate, Upstream Products: Bis(trichloromethyl) carbonate, p-Toluidine, 2-Oxo-2-(p-tolylamino)acetic acid; Downstream Products: 4-Methyltriphenylamine, Phenyl isothiocyanate, Prop-2-yn-1-yl p-tolylcarbamate.

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

Last updated:

How to cite: Jingsj. "p-Tolyl isocyanate (CAS 622-58-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14419-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.