19879-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19879-91-5 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 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 19879-91:
(7*1)+(6*9)+(5*8)+(4*7)+(3*9)+(2*9)+(1*1)=175
175 % 10 = 5
So 19879-91-5 is a valid CAS Registry Number.