858204-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 858204-55-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,8,2,0 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 858204-55:
(8*8)+(7*5)+(6*8)+(5*2)+(4*0)+(3*4)+(2*5)+(1*5)=184
184 % 10 = 4
So 858204-55-4 is a valid CAS Registry Number.