3-Methyl-5-chloro-1,2,4-thiadiazole
[CAS# 21734-85-0]

Identification

• Name: 3-Methyl-5-chloro-1,2,4-thiadiazole
• Molecular Formula: C₃H₃ClN₂S
• Molecular Weight: 134.59
• CAS Registry Number: 21734-85-0
• EC Number: 851-633-1

Properties

• Solubility: Slightly soluble (2 g/L) (25 ºC), Calc.^*
• Density: 1.355 g/cm³ (20 ºC)^**
• Boiling point: 51 ºC (21 Torr)^**
• Refractive index: 1.52075 (589.3 nm 22.5 ºC)^**
• Flash point: 87.7±22.6 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2018 ACD/Labs)

^** Goerdeler, Joachim; Chemische Berichte 1957, V90, P182-7.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H302
Acute toxicity	Acute Tox.	4	H332
Eye irritation	Eye Irrit.	2A	H319
Specific target organ toxicity - single exposure	STOT SE	3	H335
Skin irritation	Skin Irrit.	2	H315
Acute toxicity	Acute Tox.	4	H312