855740-55-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 855740-55-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,5,7,4 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 855740-55:
(8*8)+(7*5)+(6*5)+(5*7)+(4*4)+(3*0)+(2*5)+(1*5)=195
195 % 10 = 5
So 855740-55-5 is a valid CAS Registry Number.