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2-Toluenesulfonyl isocyanate

Also known as: o-Toluenesulfonyl isocyanate, o-Toluenesulphonyl isocyanate, o-Tolylsulphonyl isocyanate, 2-methylbenzenesulfonyl isocyanate, 2-methyl-N-(oxomethylidene)benzenesulfonamide, 2-MeC6H4-NCO, MFCD00037045, toluenesulfonyl isocyanate

2-Toluenesulfonyl isocyanate (CAS 32324-19-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H7NO3S and a molecular weight of 197.21100 g/mol. Key properties include a boiling point of 129 °C (5 mmHg), a density of 1.303 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 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 Nov 3, 2026.

CAS No.
32324-19-9
Jingsj CID
J-42750-9
Molecular Formula
C8H7NO3S
Molecular Weight
197.21100 g/mol
Category
Organic Acids
Last updated
11/3/2026

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Physicochemical Properties

Boiling Point129 °C (5 mmHg)
Density1.303 g/mL at 25 °C(lit.)
Flash Point>110.0 °C
Exact Mass197.01500
PSA71.95000
LogP2.10030
Refractive Indexn20/D 1.54(lit.)
Storage Conditions0-6°C
Additional Propertyreacts

GHS Safety & Compliance

Irritant / Health HazardSignal word: Danger
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H332 — Harmful if inhaled
  • H334 — May cause allergy or asthma symptoms if inhaled

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 2-Toluenesulfonyl isocyanate?

The CAS number of 2-Toluenesulfonyl isocyanate is 32324-19-9.

What are the molecular formula and molecular weight of 2-Toluenesulfonyl isocyanate?

2-Toluenesulfonyl isocyanate has molecular formula C8H7NO3S and molecular weight 197.21100 g/mol.

Is 2-Toluenesulfonyl isocyanate hazardous?

2-Toluenesulfonyl 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 2-Toluenesulfonyl isocyanate?

For 2-Toluenesulfonyl isocyanate, Upstream Products: Chlorosulfonyl isocyanate; Downstream Products: 2-Methylbenzene-1-sulfonamide.

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

Last updated:

How to cite: Jingsj. "2-Toluenesulfonyl isocyanate (CAS 32324-19-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42750-9 (accessed 2026-11-09).

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