2-Diazo-1-naphthol-4-sulfonyl chloride

2-重氮-1-萘酚-4-磺酰氯

Also known as: 1,2-Naphthoquinone-2-diazido-4-sulfonyl chloride, 3-Diazo-3,4-dihydro-4-oxo-1-naphthalenesulfonyl chloride, 3-Diazo-4-oxo-3,4-dihydro-naphthalene-1-sulfonyl chloride, 2-Diazo-1-naphthol-4-sulphochloride, 4-Chlorosulfonyl-2-diazonio-1-naphthalenolate

2-Diazo-1-naphthol-4-sulfonyl chloride (CAS 36451-09-9) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C10H5ClN2O3S and a molecular weight of 268.67600 g/mol. It is also known as 1,2-Naphthoquinone-2-diazido-4-sulfonyl chloride, 3-Diazo-3,4-dihydro-4-oxo-1-naphthalenesulfonyl chloride and 3-Diazo-4-oxo-3,4-dihydro-naphthalene-1-sulfonyl chloride. Key properties include a melting point of 28-31°C, a boiling point of 215-217 °C30 mm Hg(lit.), a density of 1.107 g/mL at 25 °C(lit.) and a flash point of >230 °F. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
36451-09-9
Jingsj CID
J-24373-9
Molecular Formula
C10H5ClN2O3S
Chinese Name
2-重氮-1-萘酚-4-磺酰氯
Molecular Weight
268.67600 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point28-31°C
Boiling Point215-217 °C30 mm Hg(lit.)
Density1.107 g/mL at 25 °C(lit.)
Flash Point>230 °F

GHS Safety & Compliance

CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of 2-Diazo-1-naphthol-4-sulfonyl chloride?

The CAS number of 2-Diazo-1-naphthol-4-sulfonyl chloride is 36451-09-9.

What are the molecular formula and molecular weight of 2-Diazo-1-naphthol-4-sulfonyl chloride?

2-Diazo-1-naphthol-4-sulfonyl chloride has molecular formula C10H5ClN2O3S and molecular weight 268.67600 g/mol.

Is 2-Diazo-1-naphthol-4-sulfonyl chloride hazardous?

2-Diazo-1-naphthol-4-sulfonyl chloride has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "2-Diazo-1-naphthol-4-sulfonyl chloride (CAS 36451-09-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24373-9 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.