Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 3-Pentanone p-Toluenesulfonylhydrazone
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Benzenesulfonic acid,4-methyl-, 2-(1-ethylpropylidene)hydrazide
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

28495-72-9

28495-72-9 structure

28495-72-9 structure

Name: 3-Pentanone p-Toluenesulfonylhydrazone
Chemical Name: 4-methyl-N-(pentan-3-ylideneamino)benzenesulfonamide
CAS Number: 28495-72-9
Molecular Formula: C₁₂H₁₈N₂O₂S
Molecular Weight: 254.34900
Catalog: Chemical reagent Organic reagent 腙
Create Date: 2018-03-03 08:00:00
Modify Date: 2025-08-24 19:56:36

Name	4-methyl-N-(pentan-3-ylideneamino)benzenesulfonamide
Synonyms	3-Pentanontosylhydrazon Pentan-3-on-monotosylhydrazon 3-Pentanone p-Toluenesulfonylhydrazone Pentan-3-on-tosylhydrazon 3-Pentanone Tosylhydrazone p-Tosylhydrazon des Diaethylketons

Density	1.13g/cm3
Boiling Point	377ºC at 760mmHg
Melting Point	103ºC
Molecular Formula	C₁₂H₁₈N₂O₂S
Molecular Weight	254.34900
Flash Point	181.8ºC
Exact Mass	254.10900
PSA	66.91000
LogP	3.92100
Vapour Pressure	6.96E-06mmHg at 25°C
Index of Refraction	1.541

HS Code	2935009090

1576-35-8 structure

1576-35-8

96-22-0 structure

96-22-0

~79%

28495-72-9 structure

28495-72-9

Literature: Hanold, Norbert; Kalbitz, Helga; Pieper, Mathias; Zimmer, Oswald; Meier, Herbert Liebigs Annalen der Chemie, 1986 , # 8 p. 1344 - 1352

Precursor 2
1576-35-8 96-22-0
DownStream 0

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%

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