2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7(4H)-one

Modify Date: 2025-09-16 17:48:31

2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7(4H)-one Structure
2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7(4H)-one structure
 Common Name 2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7(4H)-one
CAS Number 98488-10-9 Molecular Weight 163.17700
Density 1.35g/cm3 Boiling Point 266.3ºC at 760mmHg
Molecular Formula C8H9N3O Melting Point 252-254ºC
MSDS N/A Flash Point 114.9ºC

 Names

Name 2,5-dimethylpyrazolo(1,5-a)pyrimidin-7-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.35g/cm3
Boiling Point 266.3ºC at 760mmHg
Melting Point 252-254ºC
Molecular Formula C8H9N3O
Molecular Weight 163.17700
Flash Point 114.9ºC
Exact Mass 163.07500
PSA 47.25000
LogP 0.76340
Index of Refraction 1.671

 Safety Information

Safety Phrases 22-24/25
HS Code 2933990090

 Synthetic Route

Ethyl acetoacetate structure

Ethyl acetoacetate

CAS#:141-97-9

5-Methyl-1H-pyrazol-3-amine structure

5-Methyl-1H-pyr...

CAS#:31230-17-8

~10%

2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7(4H)-one Structure

2,5-Dimethylpyr...

CAS#:98488-10-9

Literature: Nam; Grandberg; Sorokin Chemistry of Heterocyclic Compounds, 2003 , vol. 39, # 9 p. 1210 - 1212
5-Methyl-1H-pyrazol-3-amine structure

5-Methyl-1H-pyr...

CAS#:31230-17-8

Ethyl acetoacetate structure

Ethyl acetoacetate

CAS#:141-97-9

~%

2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7(4H)-one Structure

2,5-Dimethylpyr...

CAS#:98488-10-9

Literature: Journal of Organic Chemistry, , vol. 24, p. 787,792

 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

2,5-Dimethyl-4H-pyrazolo[1,5-a]pyrimidin-7-one
2,5-Dimethyl-4H-pyrazolo[1,5-a]pyrimidin-7-on
MFCD00210153
2,7-dimethyl-1,4-dihydropyrazolo[1,5-a]pyrimidin-4-one
2,5-dimethyl-7-oxopyrazolo[1,5-a]pyrimidine
2,4-DINITRO-6-METHYLANISOLE
2,5-Dimethylpyrazol(1,5-a)pyrimidin-7-one
2,5-DIMETHYL-4,7-DIHYDROPYRAZOLO[1,5-A]PYRIMIDIN-7-ONE
2,5-DIMETHYLPYRAZOLO[1,5-A]PYRIMIDIN-7(4H)-ONE
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Chemsrc provides CAS#:98488-10-9 MSDS, density, melting point, boiling point, structure, etc. Its name is 2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7(4H)-one>> amp version: 2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7(4H)-one

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