5-Chloro-3-methyl-1,2,4-thiadiazole

Modify Date: 2025-08-25 16:11:33

5-Chloro-3-methyl-1,2,4-thiadiazole Structure
5-Chloro-3-methyl-1,2,4-thiadiazole structure
Common Name 5-Chloro-3-methyl-1,2,4-thiadiazole
CAS Number 21734-85-0 Molecular Weight 134.587
Density 1.4±0.1 g/cm3 Boiling Point 221.5±23.0 °C at 760 mmHg
Molecular Formula C3H3ClN2S Melting Point N/A
MSDS N/A Flash Point 87.7±22.6 °C

 Names

Name 5-chloro-3-methyl-1,2,4-thiadiazole
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.4±0.1 g/cm3
Boiling Point 221.5±23.0 °C at 760 mmHg
Molecular Formula C3H3ClN2S
Molecular Weight 134.587
Flash Point 87.7±22.6 °C
Exact Mass 133.970551
PSA 54.02000
LogP 1.36
Vapour Pressure 0.2±0.4 mmHg at 25°C
Index of Refraction 1.566
InChIKey ILTLLMVRPBXCSX-UHFFFAOYSA-N
SMILES Cc1nsc(Cl)n1
Storage condition 2-8°C

 Safety Information

Hazard Codes Xi
HS Code 2934999090

 Synthetic Route

~81%

5-Chloro-3-methyl-1,2,4-thiadiazole Structure

5-Chloro-3-meth...

CAS#:21734-85-0

Literature: QUEEN MARY and WESTFIELD COLLEGE Patent: US2010/160392 A1, 2010 ; Location in patent: Page/Page column 18 ;

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5-Chloro-3-methyl-1,2,4-thiadiazole Structure

5-Chloro-3-meth...

CAS#:21734-85-0

Literature: WO2011/101304 A2, ; Page/Page column 46 ; WO 2011/101304 A2

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5-Chloro-3-methyl-1,2,4-thiadiazole Structure

5-Chloro-3-meth...

CAS#:21734-85-0

Literature: Chemische Berichte, , vol. 90, p. 182,186

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Detail
Literature: Chemische Berichte, , vol. 90, p. 182,186

 Customs

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

3-methyl-5-chloro-1,2,4-thiadiazole
5-Chlor-3-methyl-[1,2,4]thiadiazol
5-Chloro-3-methyl-1,2,4thiadiazole
5-chloro-3-methyl-1,2,4-thiazole
1,2,4-THIADIAZOLE,5-CHLORO-3-METHYL
5-Chloro-3-methyl-1,2,4-thiadiazole
1,2,4-Thiadiazole, 5-chloro-3-methyl-
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