67923-16-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67923-16-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,9,2 and 3 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 67923-16:
(7*6)+(6*7)+(5*9)+(4*2)+(3*3)+(2*1)+(1*6)=154
154 % 10 = 4
So 67923-16-4 is a valid CAS Registry Number.