817552-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 817552-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,7,5,5 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 817552-91:
(8*8)+(7*1)+(6*7)+(5*5)+(4*5)+(3*2)+(2*9)+(1*1)=183
183 % 10 = 3
So 817552-91-3 is a valid CAS Registry Number.
817552-91-3Relevant articles and documents
4-Cyanopyrazole-3-carboxamide derivatives, preparation, and application thereof
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Page/Page column 4, (2008/06/13)
The invention relates to 4-cyanopyrazole-3-carboxamide derivatives of formula (I): in which R1, R2, R3, R4, R5, R6, R7, R8 are as described herein. Also disclosed and