199111-51-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199111-51-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,1,1 and 1 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 199111-51:
(8*1)+(7*9)+(6*9)+(5*1)+(4*1)+(3*1)+(2*5)+(1*1)=148
148 % 10 = 8
So 199111-51-8 is a valid CAS Registry Number.