855942-55-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 855942-55-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,5,9,4 and 2 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 855942-55:
(8*8)+(7*5)+(6*5)+(5*9)+(4*4)+(3*2)+(2*5)+(1*5)=211
211 % 10 = 1
So 855942-55-1 is a valid CAS Registry Number.