917565-45-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 917565-45-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,7,5,6 and 5 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 917565-45:
(8*9)+(7*1)+(6*7)+(5*5)+(4*6)+(3*5)+(2*4)+(1*5)=198
198 % 10 = 8
So 917565-45-8 is a valid CAS Registry Number.