Cyclopentene-1,2-dicarboxylic acid anhydride
[CAS# 3205-94-5]

Identification

• Name: Cyclopentene-1,2-dicarboxylic acid anhydride
• Synonyms: 5,6-Dihydro-4H-cyclopenta[c]furan-1,3-dione; NSC 291644
• Molecular Formula: C₇H₆O₃
• Molecular Weight: 138.12
• CAS Registry Number: 3205-94-5
• EC Number: 625-825-9

Properties

• Solubility: Sparingly soluble (15 g/L) (25 ºC), Calc.^*
• Density: 1.37±0.1 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 46-47 ºC^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2014 ACD/Labs)

^** Askani, Rainer; Chemische Berichte 1965, V98(7), P2322-6.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335
Eye irritation	Eye Irrit.	2	H319
Eye irritation	Eye Irrit.	2A	H319
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H411