842140-65-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 842140-65-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,2,1,4 and 0 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 842140-65:
(8*8)+(7*4)+(6*2)+(5*1)+(4*4)+(3*0)+(2*6)+(1*5)=142
142 % 10 = 2
So 842140-65-2 is a valid CAS Registry Number.