19902-79-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19902-79-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,0 and 2 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 19902-79:
(7*1)+(6*9)+(5*9)+(4*0)+(3*2)+(2*7)+(1*9)=135
135 % 10 = 5
So 19902-79-5 is a valid CAS Registry Number.