857621-84-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857621-84-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,6,2 and 1 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 857621-84:
(8*8)+(7*5)+(6*7)+(5*6)+(4*2)+(3*1)+(2*8)+(1*4)=202
202 % 10 = 2
So 857621-84-2 is a valid CAS Registry Number.