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Pyrazolo[1,5-a]pyrimidine, 2-(4-chlorophenyl)-5-methyl-7-phenyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

428850-91-3

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428850-91-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 428850-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,8,8,5 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 428850-91:
(8*4)+(7*2)+(6*8)+(5*8)+(4*5)+(3*0)+(2*9)+(1*1)=173
173 % 10 = 3
So 428850-91-3 is a valid CAS Registry Number.

428850-91-3Relevant academic research and scientific papers

Convenient synthesis of substituted 3-alkenylpyrazolo[1,5-a]pyrimidines via Heck cross-coupling reaction

Yin, Lunxiang,Liebscher, Juergen

, p. 2329 - 2334 (2007/10/03)

3-Iodopyrazolo[1,5-a]pyrimidines 3 were easily obtained by direct iodination of pyrazolo[1,5-a]pyrimidines 2 with NIS and could be transformed into a series of new substituted 3-alkenyl-pyrazolo[1,5-a]pyrimidines 5 by Heck cross-coupling.

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