58661-16-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 58661-16-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,6,6 and 1 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 58661-16:
(7*5)+(6*8)+(5*6)+(4*6)+(3*1)+(2*1)+(1*6)=148
148 % 10 = 8
So 58661-16-8 is a valid CAS Registry Number.