945404-21-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 945404-21-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,5,4,0 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 945404-21:
(8*9)+(7*4)+(6*5)+(5*4)+(4*0)+(3*4)+(2*2)+(1*1)=167
167 % 10 = 7
So 945404-21-7 is a valid CAS Registry Number.