219828-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219828-42-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,8,2 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 219828-42:
(8*2)+(7*1)+(6*9)+(5*8)+(4*2)+(3*8)+(2*4)+(1*2)=159
159 % 10 = 9
So 219828-42-9 is a valid CAS Registry Number.