164931-95-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 164931-95-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,4,9,3 and 1 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 164931-95:
(8*1)+(7*6)+(6*4)+(5*9)+(4*3)+(3*1)+(2*9)+(1*5)=157
157 % 10 = 7
So 164931-95-7 is a valid CAS Registry Number.