19876-20-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19876-20-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,8,7 and 6 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 19876-20:
(7*1)+(6*9)+(5*8)+(4*7)+(3*6)+(2*2)+(1*0)=151
151 % 10 = 1
So 19876-20-1 is a valid CAS Registry Number.