20443-15-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20443-15-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,4,4 and 3 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 20443-15:
(7*2)+(6*0)+(5*4)+(4*4)+(3*3)+(2*1)+(1*5)=66
66 % 10 = 6
So 20443-15-6 is a valid CAS Registry Number.