3-chloro-9-methyl-2,4,8,9-tetrazabicyclo[4.3.0]nona-1,3,6-trien-5-one

Modify Date: 2026-08-05 22:06:41

3-chloro-9-methyl-2,4,8,9-tetrazabicyclo[4.3.0]nona-1,3,6-trien-5-one Structure
3-chloro-9-methyl-2,4,8,9-tetrazabicyclo[4.3.0]nona-1,3,6-trien-5-one structure
 Common Name 3-chloro-9-methyl-2,4,8,9-tetrazabicyclo[4.3.0]nona-1,3,6-trien-5-one
CAS Number 5334-35-0 Molecular Weight 184.58300
Density 1.79g/cm3 Boiling Point 301.8ºC at 760 mmHg
Molecular Formula C6H5ClN4O Melting Point N/A
MSDS N/A Flash Point 136.3ºC

 Names

Name 6-chloro-1-methyl-2H-pyrazolo[3,4-d]pyrimidin-4-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.79g/cm3
Boiling Point 301.8ºC at 760 mmHg
Molecular Formula C6H5ClN4O
Molecular Weight 184.58300
Flash Point 136.3ºC
Exact Mass 184.01500
PSA 63.57000
LogP 0.31000
Index of Refraction 1.789

 Safety Information

HS Code 2933990090

 Synthetic Route

4,6-Dichloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidine structure

4,6-Dichloro-1-...

CAS#:98141-42-5

~70%

3-chloro-9-methyl-2,4,8,9-tetrazabicyclo[4.3.0]nona-1,3,6-trien-5-one Structure

3-chloro-9-meth...

CAS#:5334-35-0

Learn More
Literature: F. HOFFMANN-LA ROCHE AG; HOFFMANN-LA ROCHE INC.; FENG, Jianwen; HAYNES, Nancy-Ellen; HERMANN, Johannes Cornelius; KIM, Kyungjin; LIU, Jin-Jun; SCOTT, Nathan Robert; YI, Lin; ZAK, Mark; ZHAO, Guiling Patent: WO2013/182546 A1, 2013 ; Location in patent: Page/Page column 85 ;

 Precursor & DownStream

Precursor  1

DownStream  1

 Customs

HS Code 2933990090
Summary 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

MFCD18793419
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Chemsrc provides CAS#:5334-35-0 MSDS, density, melting point, boiling point, structure, etc. Its name is 3-chloro-9-methyl-2,4,8,9-tetrazabicyclo[4.3.0]nona-1,3,6-trien-5-one>> amp version: 3-chloro-9-methyl-2,4,8,9-tetrazabicyclo[4.3.0]nona-1,3,6-trien-5-one

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