855842-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 855842-80-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,5,8,4 and 2 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 855842-80:
(8*8)+(7*5)+(6*5)+(5*8)+(4*4)+(3*2)+(2*8)+(1*0)=207
207 % 10 = 7
So 855842-80-7 is a valid CAS Registry Number.