857790-05-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857790-05-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,7,9 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 857790-05:
(8*8)+(7*5)+(6*7)+(5*7)+(4*9)+(3*0)+(2*0)+(1*5)=217
217 % 10 = 7
So 857790-05-7 is a valid CAS Registry Number.