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1-(p-Toluenesulfonyl)imidazole

Also known as: 1-[(4-Methylphenyl)sulfonyl]-1H-imidazole, 1-(4-methylphenyl)sulfonylimidazole, 1-(p-Toluenesulfonyl)-1H-imidazole, 1-(p-Toluenesulphonyl)imidazole, 1-(toluene-4-sulfonyl)-1H-imidazole, 1-(toluene-p-sulphonyl)imidazole, 1-Tosylimidazole, 1-Tosyl-1H-imidazole, 1-tosyl-imidazole, N-Tosylimidazole, Tosylimidazole, p-toluenesulfonyl imidazole, tosyl imidazole, MFCD00005285, EINECS 218-771-9

1-(p-Toluenesulfonyl)imidazole (CAS 2232-08-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H10N2O2S and a molecular weight of 222.26 g/mol. Key properties include a melting point of 76-78 °C(lit.), a boiling point of 409.1±38.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 201.2±26.8 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2232-08-8
Jingsj CID
J-962501-8
Molecular Formula
C10H10N2O2S
Molecular Weight
222.26 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point76-78 °C(lit.)
Boiling Point409.1±38.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point201.2±26.8 °C
Exact Mass222.046295
PSA60.34000
LogP1.40
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.618

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2933290090
Summary2933290090. other compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 1-(p-Toluenesulfonyl)imidazole?

The CAS number of 1-(p-Toluenesulfonyl)imidazole is 2232-08-8.

What are the molecular formula and molecular weight of 1-(p-Toluenesulfonyl)imidazole?

1-(p-Toluenesulfonyl)imidazole has molecular formula C10H10N2O2S and molecular weight 222.26 g/mol.

Is 1-(p-Toluenesulfonyl)imidazole hazardous?

1-(p-Toluenesulfonyl)imidazole has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 1-(p-Toluenesulfonyl)imidazole?

For 1-(p-Toluenesulfonyl)imidazole, Upstream Products: Imidazole, p-Toluenesulfonyl chloride, 4-Methylbenzenesulfinic acid; Downstream Products: 1-[(4-Methylphenyl)sulfonyl]-1H-indole, Imidazole, N-Isopropyl-4-methylbenzenesulfonamide.

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

Last updated:

How to cite: Jingsj. "1-(p-Toluenesulfonyl)imidazole (CAS 2232-08-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-962501-8 (accessed 2026-11-09).

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