915778-71-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 915778-71-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,5,7,7 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 915778-71:
(8*9)+(7*1)+(6*5)+(5*7)+(4*7)+(3*8)+(2*7)+(1*1)=211
211 % 10 = 1
So 915778-71-1 is a valid CAS Registry Number.