15919-40-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15919-40-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,9,1 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 15919-40:
(7*1)+(6*5)+(5*9)+(4*1)+(3*9)+(2*4)+(1*0)=121
121 % 10 = 1
So 15919-40-1 is a valid CAS Registry Number.