7429-15-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7429-15-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,4,2 and 9 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 7429-15:
(6*7)+(5*4)+(4*2)+(3*9)+(2*1)+(1*5)=104
104 % 10 = 4
So 7429-15-4 is a valid CAS Registry Number.