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4-Methoxyphenethyl isocyanate

Also known as: 2-(4-Methoxyphenyl)ethyl isocyanate, 1-(2-Isocyanatoethyl)-4-methoxybenzene

4-Methoxyphenethyl isocyanate (CAS 52634-59-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H11NO2 and a molecular weight of 177.20000 g/mol. Key properties include a boiling point of 279-280ºC(lit.), a density of 1.105 g/mL at 25ºC(lit.) and a flash point of >110.0 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
52634-59-0
Jingsj CID
J-1369489-8
Molecular Formula
C10H11NO2
Molecular Weight
177.20000 g/mol
Category
Organic Acids
Last updated
11/3/2026
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Physicochemical Properties

Boiling Point279-280ºC(lit.)
Density1.105 g/mL at 25ºC(lit.)
Flash Point>110.0 °C
Exact Mass177.07900
PSA38.66000
LogP1.57350
Refractive Indexn20/D 1.5280(lit.)

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-Methoxyphenethyl isocyanate?

The CAS number of 4-Methoxyphenethyl isocyanate is 52634-59-0.

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

4-Methoxyphenethyl isocyanate has molecular formula C10H11NO2 and molecular weight 177.20000 g/mol.

Is 4-Methoxyphenethyl isocyanate hazardous?

4-Methoxyphenethyl 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 4-Methoxyphenethyl isocyanate?

For 4-Methoxyphenethyl isocyanate, Upstream Products: 3-(4-Methoxyphenyl)propanoic acid, 3-(4-Methoxyphenyl)propanoyl chloride, 4-Methoxyphenethylamine.

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-Methoxyphenethyl isocyanate (CAS 52634-59-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1369489-8 (accessed 2026-11-09).

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