67503-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67503-17-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,5,0 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 67503-17:
(7*6)+(6*7)+(5*5)+(4*0)+(3*3)+(2*1)+(1*7)=127
127 % 10 = 7
So 67503-17-7 is a valid CAS Registry Number.