917756-74-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 917756-74-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,7,7,5 and 6 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 917756-74:
(8*9)+(7*1)+(6*7)+(5*7)+(4*5)+(3*6)+(2*7)+(1*4)=212
212 % 10 = 2
So 917756-74-2 is a valid CAS Registry Number.