199658-93-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199658-93-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,6,5 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 199658-93:
(8*1)+(7*9)+(6*9)+(5*6)+(4*5)+(3*8)+(2*9)+(1*3)=220
220 % 10 = 0
So 199658-93-0 is a valid CAS Registry Number.