Benzylidene Camphor Sulfonic Acid
[CAS# 56039-58-8]

Identification

• Name: Benzylidene Camphor Sulfonic Acid
• Synonyms: 4-[(4,7,7-trimethyl-3-oxo-2-bicyclo[2.2.1]heptanylidene)methyl]benzenesulfonic acid
• Molecular Formula: C₁₇H₂₀O₄S
• Molecular Weight: 320.40
• CAS Registry Number: 56039-58-8
• EC Number: 809-459-9
• SMILES: CC1(C2CCC1(C(=O)C2=CC3=CC=C(C=C3)S(=O)(=O)O)C)C

Properties

• Solubility: 119.5 mg/L (25 ºC water)
• Density: 1.3±0.1 g/cm³, Calc.^*
• Index of Refraction: 1.598, Calc.^*
• Melting point: 199.52 ºC

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software.

Safety Data

• Hazard Symbols: GHS07 Warning
• Hazard Statements: H319-H315-H335
• Precautionary Statements: P261-P305+P351+P338-P302+P352-P403+P233

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Specific target organ toxicity - single exposure	STOT SE	3	H335
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319