75658-16-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75658-16-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,6,5 and 8 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 75658-16:
(7*7)+(6*5)+(5*6)+(4*5)+(3*8)+(2*1)+(1*6)=161
161 % 10 = 1
So 75658-16-1 is a valid CAS Registry Number.