87948-21-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87948-21-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,9,4 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 87948-21:
(7*8)+(6*7)+(5*9)+(4*4)+(3*8)+(2*2)+(1*1)=188
188 % 10 = 8
So 87948-21-8 is a valid CAS Registry Number.
87948-21-8Relevant academic research and scientific papers
Substituted 1H-pyrazolo (1,5-a) pyrimidines and process for their preparation
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, (2008/06/13)
Compounds of general formula (I) STR1 wherein R1 is a 2-pyridyl, 3-pyridyl or 4-pyridyl group; (b) a phenyl ring, unsubstituted or substituted by one or two groups chosen from halogen, trihalo-C1 -C4 alkyl, C1 -