543688-88-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 543688-88-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,3,6,8 and 8 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 543688-88:
(8*5)+(7*4)+(6*3)+(5*6)+(4*8)+(3*8)+(2*8)+(1*8)=196
196 % 10 = 6
So 543688-88-6 is a valid CAS Registry Number.