842136-68-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 842136-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,2,1,3 and 6 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 842136-68:
(8*8)+(7*4)+(6*2)+(5*1)+(4*3)+(3*6)+(2*6)+(1*8)=159
159 % 10 = 9
So 842136-68-9 is a valid CAS Registry Number.