857538-47-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857538-47-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,5,3 and 8 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 857538-47:
(8*8)+(7*5)+(6*7)+(5*5)+(4*3)+(3*8)+(2*4)+(1*7)=217
217 % 10 = 7
So 857538-47-7 is a valid CAS Registry Number.