7-Chloro-5-methyl[1,2,4]triazolo[1,5-a]pyrimidine
[CAS# 24415-66-5]

Identification

• Name: 7-Chloro-5-methyl[1,2,4]triazolo[1,5-a]pyrimidine
• Synonyms: 5-Methyl-7-chloro-s-triazolo[1,5-a]pyrimidine; 7-Chloro-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine; 7-Chloro-5-methyl-s-triazolo[1,5-a]pyrimidine; AR 12300
• Molecular Formula: C₆H₅ClN₄
• Molecular Weight: 168.58
• CAS Registry Number: 24415-66-5
• EC Number: 683-781-6

Properties

• Solubility: Slightly soluble (1.1 g/L) (25 ºC), Calc.^*
• Density: 1.59±0.1 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 151-153 ºC^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2017 ACD/Labs)

^** Shirakawa, Kenzo; Yakugaku Zasshi 1958, V78, P1395-1400.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Specific target organ toxicity - single exposure	STOT SE	3	H335
Skin irritation	Skin Irrit.	2	H315
Acute toxicity	Acute Tox.	3	H301
Eye irritation	Eye Irrit.	2	H319
Eye irritation	Eye Irrit.	2A	H319
Acute toxicity	Acute Tox.	4	H302