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3,5-Dimethoxyphenyl isocyanate

Also known as: 1,3-Dimethoxy-5-isocyanatobenzene, 1-Isocyanato-3,5-dimethoxybenzene, Benzene, 1-isocyanato-3,5-dimethoxy-, MFCD00013862

3,5-Dimethoxyphenyl isocyanate (CAS 54132-76-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H9NO3 and a molecular weight of 179.17300 g/mol. Key properties include a melting point of 33-36ºC, a boiling point of 279.5ºC at 760 mmHg, a density of 1.1g/cm3 and a flash point of 113ºC. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
54132-76-2
Jingsj CID
J-11638-1
Molecular Formula
C9H9NO3
Molecular Weight
179.17300 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point33-36ºC
Boiling Point279.5ºC at 760 mmHg
Density1.1g/cm3
Flash Point113ºC
Exact Mass179.05800
PSA47.89000
LogP1.67110
Refractive Index1.501

GHS Safety & Compliance

Irritant / Health HazardSignal word: Danger
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H332 — Harmful if inhaled
  • 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 3,5-Dimethoxyphenyl isocyanate?

The CAS number of 3,5-Dimethoxyphenyl isocyanate is 54132-76-2.

What are the molecular formula and molecular weight of 3,5-Dimethoxyphenyl isocyanate?

3,5-Dimethoxyphenyl isocyanate has molecular formula C9H9NO3 and molecular weight 179.17300 g/mol.

Is 3,5-Dimethoxyphenyl isocyanate hazardous?

3,5-Dimethoxyphenyl isocyanate has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.

What are the upstream and downstream products of 3,5-Dimethoxyphenyl isocyanate?

For 3,5-Dimethoxyphenyl isocyanate, Upstream Products: 3,5-Dimethoxybenzoic acid, 3,5-Dimethoxybenzohydrazide, Ethyl 3,5-dimethoxybenzoate; Downstream Products: 5-Heptylresorcinol, Olivetol, 1-Fluoro-3,5-dimethoxybenzene.

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

Last updated:

How to cite: Jingsj. "3,5-Dimethoxyphenyl isocyanate (CAS 54132-76-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11638-1 (accessed 2026-11-09).

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