917219-13-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 917219-13-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,7,2,1 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 917219-13:
(8*9)+(7*1)+(6*7)+(5*2)+(4*1)+(3*9)+(2*1)+(1*3)=167
167 % 10 = 7
So 917219-13-7 is a valid CAS Registry Number.