1,2-Benzenedicarboxylic acid monobutyl ester
[CAS# 131-70-4]

Identification

• Classification: Analytical chemistry >> Standard >> Food and beverage standards
• Name: 1,2-Benzenedicarboxylic acid monobutyl ester
• Synonyms: Butyl hydrogen phthalate; Mono-n-butyl phthalate; Monobutyl phthalate; NSC 8479
• Molecular Formula: C₁₂H₁₄O₄
• Molecular Weight: 222.24
• CAS Registry Number: 131-70-4
• EC Number: 205-036-2

Properties

• Solubility: Very slightly soluble (0.44 g/L) (25 ºC), Calc.^*
• Density: 1.173±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 73-74 ºC^**

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

^** Reid, E. E.; US 1554032 1925.

Safety Data

• Hazard Symbols: T
• Risk Codes: R61;R62
• Safety Description: S53;S36/37;S45

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Reproductive toxicity	Repr.	1B	H360
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319
Reproductive toxicity	Repr.	1A	H360
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H411