857550-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857550-45-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,5,5 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 857550-45:
(8*8)+(7*5)+(6*7)+(5*5)+(4*5)+(3*0)+(2*4)+(1*5)=199
199 % 10 = 9
So 857550-45-9 is a valid CAS Registry Number.