73693-15-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73693-15-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,6,9 and 3 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 73693-15:
(7*7)+(6*3)+(5*6)+(4*9)+(3*3)+(2*1)+(1*5)=149
149 % 10 = 9
So 73693-15-9 is a valid CAS Registry Number.