72978-97-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72978-97-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,9,7 and 8 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 72978-97:
(7*7)+(6*2)+(5*9)+(4*7)+(3*8)+(2*9)+(1*7)=183
183 % 10 = 3
So 72978-97-3 is a valid CAS Registry Number.