93989-74-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 93989-74-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,9,8 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 93989-74:
(7*9)+(6*3)+(5*9)+(4*8)+(3*9)+(2*7)+(1*4)=203
203 % 10 = 3
So 93989-74-3 is a valid CAS Registry Number.