5868-81-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5868-81-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,8,6 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5868-81:
(6*5)+(5*8)+(4*6)+(3*8)+(2*8)+(1*1)=135
135 % 10 = 5
So 5868-81-5 is a valid CAS Registry Number.