61858-78-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 61858-78-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,8,5 and 8 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 61858-78:
(7*6)+(6*1)+(5*8)+(4*5)+(3*8)+(2*7)+(1*8)=154
154 % 10 = 4
So 61858-78-4 is a valid CAS Registry Number.