5626-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5626-91-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,6,2 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5626-91:
(6*5)+(5*6)+(4*2)+(3*6)+(2*9)+(1*1)=105
105 % 10 = 5
So 5626-91-5 is a valid CAS Registry Number.