94681-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 94681-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,6,8 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 94681-57:
(7*9)+(6*4)+(5*6)+(4*8)+(3*1)+(2*5)+(1*7)=169
169 % 10 = 9
So 94681-57-9 is a valid CAS Registry Number.