4-Methylbenzenesulfonic acid butyl ester
[CAS# 778-28-9]

Identification

• Classification: Chemical reagent >> Organic reagent >> Tosylate
• Name: 4-Methylbenzenesulfonic acid butyl ester
• Molecular Formula: C₁₁H₁₆O₃S
• Molecular Weight: 228.31
• CAS Registry Number: 778-28-9
• EC Number: 212-295-5

Properties

• Solubility: Very slightly soluble (0.17 g/L) (25 ºC), Calc.^*
• Density: 1.1319 g/cm³ (20 ºC)^**
• Refractive index: 1.5085 (589.3 nm 20 ºC)^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2015 ACD/Labs)

^** Sekera, Vladimir C.; Journal of the American Chemical Society 1933, V55, P345-9.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H302
Eye irritation	Eye Irrit.	2	H319
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335
Skin sensitization	Skin Sens.	1B	H317
Germ cell mutagenicity	Muta.	2	H341