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1-(Phenylsulfonyl)-1H-pyrazole

Also known as: 1-(benzenesulfonyl)pyrazole, 1-Benzenesulfonyl-1H-pyrazole, 1-Benzenesulfonylpyrazole, 1H-Pyrazole, 1-(phenylsulfonyl)-

1-(Phenylsulfonyl)-1H-pyrazole (CAS 108128-27-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H8N2O2S and a molecular weight of 208.23700 g/mol. Key properties include a boiling point of 384.6ºC at 760 mmHg, a density of 1.33g/cm3 and a flash point of 186.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
108128-27-4
Jingsj CID
J-1393259-7
Molecular Formula
C9H8N2O2S
Molecular Weight
208.23700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point384.6ºC at 760 mmHg
Density1.33g/cm3
Flash Point186.4ºC
Exact Mass208.03100
PSA60.34000
LogP2.20090
Vapor Pressure4.03E-06mmHg at 25°C
Refractive Index1.631

Customs & Trade Information

HS Code2933199090
Summary2933199090. other compounds containing an unfused pyrazole 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-(Phenylsulfonyl)-1H-pyrazole?

The CAS number of 1-(Phenylsulfonyl)-1H-pyrazole is 108128-27-4.

What are the molecular formula and molecular weight of 1-(Phenylsulfonyl)-1H-pyrazole?

1-(Phenylsulfonyl)-1H-pyrazole has molecular formula C9H8N2O2S and molecular weight 208.23700 g/mol.

What are the upstream and downstream products of 1-(Phenylsulfonyl)-1H-pyrazole?

For 1-(Phenylsulfonyl)-1H-pyrazole, Upstream Products: Pyrazole, Benzenesulfonyl chloride; Downstream Products: 5-Chloro-1H-pyrazole.

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-(Phenylsulfonyl)-1H-pyrazole (CAS 108128-27-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1393259-7 (accessed 2026-11-09).

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