858240-77-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 858240-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,8,2,4 and 0 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 858240-77:
(8*8)+(7*5)+(6*8)+(5*2)+(4*4)+(3*0)+(2*7)+(1*7)=194
194 % 10 = 4
So 858240-77-4 is a valid CAS Registry Number.