7727-32-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7727-32-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,2 and 7 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 7727-32:
(6*7)+(5*7)+(4*2)+(3*7)+(2*3)+(1*2)=114
114 % 10 = 4
So 7727-32-4 is a valid CAS Registry Number.