91390-74-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91390-74-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,3,9 and 0 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 91390-74:
(7*9)+(6*1)+(5*3)+(4*9)+(3*0)+(2*7)+(1*4)=138
138 % 10 = 8
So 91390-74-8 is a valid CAS Registry Number.