67682-23-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67682-23-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,6,8 and 2 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 67682-23:
(7*6)+(6*7)+(5*6)+(4*8)+(3*2)+(2*2)+(1*3)=159
159 % 10 = 9
So 67682-23-9 is a valid CAS Registry Number.