5735-21-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5735-21-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,3 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5735-21:
(6*5)+(5*7)+(4*3)+(3*5)+(2*2)+(1*1)=97
97 % 10 = 7
So 5735-21-7 is a valid CAS Registry Number.