858511-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 858511-42-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,8,5,1 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 858511-42:
(8*8)+(7*5)+(6*8)+(5*5)+(4*1)+(3*1)+(2*4)+(1*2)=189
189 % 10 = 9
So 858511-42-9 is a valid CAS Registry Number.