338403-42-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 338403-42-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,8,4,0 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 338403-42:
(8*3)+(7*3)+(6*8)+(5*4)+(4*0)+(3*3)+(2*4)+(1*2)=132
132 % 10 = 2
So 338403-42-2 is a valid CAS Registry Number.