93815-54-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 93815-54-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,8,1 and 5 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 93815-54:
(7*9)+(6*3)+(5*8)+(4*1)+(3*5)+(2*5)+(1*4)=154
154 % 10 = 4
So 93815-54-4 is a valid CAS Registry Number.