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Ethyl 5-methyl-2-phenyl-pyrazolo<1,5-a>pyrimidine-7-carboxylate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

145371-73-9

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145371-73-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 145371-73-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,3,7 and 1 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 145371-73:
(8*1)+(7*4)+(6*5)+(5*3)+(4*7)+(3*1)+(2*7)+(1*3)=129
129 % 10 = 9
So 145371-73-9 is a valid CAS Registry Number.

145371-73-9Downstream Products

145371-73-9Relevant academic research and scientific papers

Unambiguous Structure Determination of Some Pyrazolopyrimidine Derivatives by Multinuclear NMR Spectroscopy

Chimichi, Stefano,Cosimelli, Barbara,Bruni, Fabrizio,Selleri, Silvia

, p. 1117 - 1121 (1992)

The condensation of 3(5)-aminopyrazole and 5-amino-3-phenylpyrazole with ethyl 2,4-dioxopentanoate and 2-ethoxymethylidene-3-oxobutyrate has been re-investigated.Contrary to previous reports, the former reaction gives rise to both regioisomeric pyrazolo1

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