Acetophenone tosylhydrazone

Also known as: Acetophenone p-Toluenesulfonylhydrazone, p-Toluenesulfonic acid (α-methylbenzylidene)hydrazide, 4-methyl-N-(1-phenylethylideneamino)benzenesulfonamide, 4-methyl-N'-(1-phenylethylidene)benzenesulfonohydrazide, 4-methyl-N-[(Z)-1-phenylethylideneamino]benzenesulfonamide, Benzenesulfonic acid, 4-methyl-, 2-(1-phenylethylidene)hydrazide, N-tosylhydrazone, Acetophenone N-tosylhydrazone

Acetophenone tosylhydrazone (CAS 4545-21-5) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C15H16N2O2S and a molecular weight of 288.36500 g/mol. Key properties include a melting point of 144-149ºC(lit.), a boiling point of 437.1ºC at 760 mmHg, a density of 1.17g/cm3 and a flash point of 218.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4545-21-5
Jingsj CID: J-43428-6
Molecular Formula: C₁₅H₁₆N₂O₂S
Molecular Weight: 288.36500 g/mol
Category: Solvents
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	144-149ºC(lit.)
Boiling Point	437.1ºC at 760 mmHg
Density	1.17g/cm3
Flash Point	218.1ºC
Exact Mass	288.09300
PSA	66.91000
LogP	4.16920
Refractive Index	1.584

Customs & Trade Information

HS Code	2935009090
Summary	2935009090 other sulphonamides VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:35.0%

Frequently Asked Questions

What is the CAS number of Acetophenone tosylhydrazone?

The CAS number of Acetophenone tosylhydrazone is 4545-21-5.

What are the molecular formula and molecular weight of Acetophenone tosylhydrazone?

Acetophenone tosylhydrazone has molecular formula C15H16N2O2S and molecular weight 288.36500 g/mol.

What are the upstream and downstream products of Acetophenone tosylhydrazone?

For Acetophenone tosylhydrazone, Upstream Products: Acetophenone, 4-Methylbenzenesulfonhydrazide, p-Toluenesulfonyl chloride; Downstream Products: 1-Phenylethanol, 1,1-Diphenylethane, Benzene,1,1'-[(1E)-1-methyl-1,2-ethenediyl]bis-.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Acetophenone tosylhydrazone (CAS 4545-21-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43428-6 (accessed 2026-11-09).

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