30993-88-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 30993-88-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,9,9 and 3 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 30993-88:
(7*3)+(6*0)+(5*9)+(4*9)+(3*3)+(2*8)+(1*8)=135
135 % 10 = 5
So 30993-88-5 is a valid CAS Registry Number.