4-Chloro-6-ethylthieno[2,3-d]pyrimidine

Modify Date: 2025-08-20 19:04:58

4-Chloro-6-ethylthieno[2,3-d]pyrimidine Structure
4-Chloro-6-ethylthieno[2,3-d]pyrimidine structure
 Common Name 4-Chloro-6-ethylthieno[2,3-d]pyrimidine
CAS Number 81136-42-7 Molecular Weight 198.673
Density 1.4±0.1 g/cm3 Boiling Point 311.1±37.0 °C at 760 mmHg
Molecular Formula C8H7ClN2S Melting Point N/A
MSDS N/A Flash Point 141.9±26.5 °C

 Names

Name 4-Chloro-6-ethylthieno[2,3-d]pyrimidine
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.4±0.1 g/cm3
Boiling Point 311.1±37.0 °C at 760 mmHg
Molecular Formula C8H7ClN2S
Molecular Weight 198.673
Flash Point 141.9±26.5 °C
Exact Mass 198.001846
PSA 54.02000
LogP 2.79
Vapour Pressure 0.0±0.6 mmHg at 25°C
Index of Refraction 1.658
InChIKey IYTRSBKGPIDYHI-UHFFFAOYSA-N
SMILES CCc1cc2c(Cl)ncnc2s1

 Safety Information

Risk Phrases 36/37/38
Safety Phrases 26-36

 Synthetic Route

6-Ethylthieno[2,3-d]pyrimidin-4(3H)-one structure

6-Ethylthieno[2...

CAS#:18593-51-6

~99%

4-Chloro-6-ethylthieno[2,3-d]pyrimidine Structure

4-Chloro-6-ethy...

CAS#:81136-42-7

Literature: WO2006/136402 A1, ; Page/Page column 80 ; WO 2006/136402 A1
Ethyl 2-amino-5-ethylthiophene-3-carboxylate structure

Ethyl 2-amino-5...

CAS#:4507-13-5

~%

4-Chloro-6-ethylthieno[2,3-d]pyrimidine Structure

4-Chloro-6-ethy...

CAS#:81136-42-7

Literature: Journal of Heterocyclic Chemistry, , vol. 18, # 7 p. 1277 - 1280

 Synonyms

4-Chloro-6-ethylthieno[2,3-d]pyrimidine
Thieno[2,3-d]pyrimidine, 4-chloro-6-ethyl-
MFCD01950152
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