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4-Methoxyphenyl isocyanate

Also known as: 1-Isocyanato-4-methoxybenzene, p-Methoxyphenyl isocyanate, 4-Isocyanatoanisole, Isocyanic acid 4-methoxyphenyl ester, Benzene, 1-isocyanato-4-methoxy-

4-Methoxyphenyl isocyanate (CAS 5416-93-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H7NO2 and a molecular weight of 149.147 g/mol. Key properties include a boiling point of 221.5±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 98.3±0.0 °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.
5416-93-3
Jingsj CID
J-33964-0
Molecular Formula
C8H7NO2
Molecular Weight
149.147 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point221.5±23.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point98.3±0.0 °C
Exact Mass149.047684
PSA38.66000
LogP2.40
Vapor Pressure0.1±0.4 mmHg at 25°C
Refractive Index1.510

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H332 — Harmful if inhaled
  • H314 — Causes severe skin burns and eye damage

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 4-Methoxyphenyl isocyanate?

The CAS number of 4-Methoxyphenyl isocyanate is 5416-93-3.

What are the molecular formula and molecular weight of 4-Methoxyphenyl isocyanate?

4-Methoxyphenyl isocyanate has molecular formula C8H7NO2 and molecular weight 149.147 g/mol.

Is 4-Methoxyphenyl isocyanate hazardous?

4-Methoxyphenyl 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 4-Methoxyphenyl isocyanate?

For 4-Methoxyphenyl isocyanate, Upstream Products: Bis(trichloromethyl) carbonate, p-Anisidine, N-hydroxy-4-methoxybenzamide; Downstream Products: p-Anisidine, N-(4-Methoxyphenyl)benzamide.

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

Last updated:

How to cite: Jingsj. "4-Methoxyphenyl isocyanate (CAS 5416-93-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33964-0 (accessed 2026-11-09).

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