61858-89-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 61858-89-7 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, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 61858-89:
(7*6)+(6*1)+(5*8)+(4*5)+(3*8)+(2*8)+(1*9)=157
157 % 10 = 7
So 61858-89-7 is a valid CAS Registry Number.