19715-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19715-40-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,7,1 and 5 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 19715-40:
(7*1)+(6*9)+(5*7)+(4*1)+(3*5)+(2*4)+(1*0)=123
123 % 10 = 3
So 19715-40-3 is a valid CAS Registry Number.