73687-43-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73687-43-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,6,8 and 7 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 73687-43:
(7*7)+(6*3)+(5*6)+(4*8)+(3*7)+(2*4)+(1*3)=161
161 % 10 = 1
So 73687-43-1 is a valid CAS Registry Number.