19706-20-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19706-20-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,7,0 and 6 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 19706-20:
(7*1)+(6*9)+(5*7)+(4*0)+(3*6)+(2*2)+(1*0)=118
118 % 10 = 8
So 19706-20-8 is a valid CAS Registry Number.