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3-Isopropenyl-α,α-dimethylbenzyl isocyanate

Also known as: 1-(1-isocyanato-1-methylethyl)-3-(1-methylethenyl)benzene, 1-(2-isocyanatopropan-2-yl)-3-prop-1-en-2-ylbenzene, m-Isopropenyl-α,α-dimethylbenzyl isocyanate, m-TMI, meta-TMI, 3-Isopropenylcumyl isocyanate, Isocyanic acid 3-isopropenyl-α,α-dimethylbenzyl ester, alpha,alpha-Dimethyl-m-isopropenylbenzyl isocyanate, m-tetramethylxylene isocyanate

3-Isopropenyl-α,α-dimethylbenzyl isocyanate (CAS 2094-99-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H15NO and a molecular weight of 201.26400 g/mol. Key properties include a boiling point of 268-271 °C(lit.), a density of 1.018 g/mL at 25 °C(lit.) and a flash point of >110.0 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage, H317 — May cause an allergic skin reaction and H330 — Fatal if inhaled. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
2094-99-7
Jingsj CID
J-3396-5
Molecular Formula
C13H15NO
Molecular Weight
201.26400 g/mol
Category
Organic Acids
Last updated
11/3/2026

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Physicochemical Properties

Boiling Point268-271 °C(lit.)
Density1.018 g/mL at 25 °C(lit.)
Flash Point>110.0 °C
Exact Mass201.11500
PSA29.43000
LogP3.29060
Vapor Pressure0.00723mmHg at 25°C
Refractive Indexn20/D 1.53(lit.)

GHS Safety & Compliance

Corrosion / Acute Toxicity / Health Hazard / Environmental HazardSignal word: Danger
  • H314 — Causes severe skin burns and eye damage
  • H317 — May cause an allergic skin reaction
  • H330 — Fatal if inhaled
  • H334 — May cause allergy or asthma symptoms if inhaled
  • H373 — May cause damage to organs through prolonged exposure
  • H410 — Very toxic to aquatic life with long lasting effects

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-Isopropenyl-α,α-dimethylbenzyl isocyanate?

The CAS number of 3-Isopropenyl-α,α-dimethylbenzyl isocyanate is 2094-99-7.

What are the molecular formula and molecular weight of 3-Isopropenyl-α,α-dimethylbenzyl isocyanate?

3-Isopropenyl-α,α-dimethylbenzyl isocyanate has molecular formula C13H15NO and molecular weight 201.26400 g/mol.

Is 3-Isopropenyl-α,α-dimethylbenzyl isocyanate hazardous?

3-Isopropenyl-α,α-dimethylbenzyl isocyanate has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage; H317 — May cause an allergic skin reaction; H330 — Fatal if inhaled.

What are the upstream and downstream products of 3-Isopropenyl-α,α-dimethylbenzyl isocyanate?

For 3-Isopropenyl-α,α-dimethylbenzyl isocyanate, Upstream Products: Isocyanic acid, 1,3-diisopropenylbenzene.

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-Isopropenyl-α,α-dimethylbenzyl isocyanate (CAS 2094-99-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3396-5 (accessed 2026-11-09).

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