68542-33-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68542-33-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,5,4 and 2 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 68542-33:
(7*6)+(6*8)+(5*5)+(4*4)+(3*2)+(2*3)+(1*3)=146
146 % 10 = 6
So 68542-33-6 is a valid CAS Registry Number.