Montelukast Disulfide Diacid Impurity
[CAS# 162515-67-5]

Identification

• Name: Montelukast Disulfide Diacid Impurity
• Synonyms: 2-[1-[[[1-(carboxymethyl)cyclopropyl]methyldisulfanyl]methyl]cyclopropyl]acetic acid
• Molecular Formula: C₁₂H₁₈O₄S₂
• Molecular Weight: 290.40
• CAS Registry Number: 162515-67-5
• EC Number: 936-799-6
• SMILES: C1CC1(CC(=O)O)CSSCC2(CC2)CC(=O)O

Properties

• Solubility: 55.1 mg/L (25 ºC water)
• Density: 1.4±0.1 g/cm³, Calc.^*
• Index of Refraction: 1.610, Calc.^*
• Melting point: 185.26 ºC
• Boiling Point: 441.48 ºC, 512.3±15.0 ºC (760 mmHg), Calc.^*
• Flash Point: 263.7±20.4 ºC, Calc.^*

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

Safety Data

• Hazard Symbols: GHS07 Warning
• Hazard Statements: H315-H319-H335
• Precautionary Statements: P261-P264-P264+P265-P271-P280-P302+P352-P304+P340-P305+P351+P338-P319-P321-P332+P317-P337+P317-P362+P364-P403+P233-P405-P501

Hazard Classification

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