Skip to main content

4-isocyanato-1,2-dimethoxybenzene

Also known as: 3,4-Dimethoxyphenyl isocyanate, Benzene,4-isocyanato-1,2-dimethoxy-, 3,4-Dimethoxyphenyl isocyanate 98%, 4-Isocyanato-1,2-dimethoxybenzene

4-isocyanato-1,2-dimethoxybenzene (CAS 37527-66-5) 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 boiling point of 270ºC at 760mmHg, a density of 1.1g/cm3 and a flash point of 124.4ºC. 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.
37527-66-5
Jingsj CID
J-45060-2
Molecular Formula
C9H9NO3
Molecular Weight
179.17300 g/mol
Category
Organic Acids
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point270ºC at 760mmHg
Density1.1g/cm3
Flash Point124.4ºC
Exact Mass179.05800
PSA47.89000
LogP1.67110
Refractive Indexn20/D 1.558(lit.)
Storage Conditions2-8℃

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 4-isocyanato-1,2-dimethoxybenzene?

The CAS number of 4-isocyanato-1,2-dimethoxybenzene is 37527-66-5.

What are the molecular formula and molecular weight of 4-isocyanato-1,2-dimethoxybenzene?

4-isocyanato-1,2-dimethoxybenzene has molecular formula C9H9NO3 and molecular weight 179.17300 g/mol.

Is 4-isocyanato-1,2-dimethoxybenzene hazardous?

4-isocyanato-1,2-dimethoxybenzene 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 4-isocyanato-1,2-dimethoxybenzene?

For 4-isocyanato-1,2-dimethoxybenzene, Upstream Products: 3,4-Dimethoxyaniline, Veratric acid, 3,4-Dimethoxybenzoyl chloride; Downstream Products: 3,4-Dimethoxy-N-methylaniline.

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-isocyanato-1,2-dimethoxybenzene (CAS 37527-66-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45060-2 (accessed 2026-11-09).

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