331745-97-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 331745-97-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,7,4 and 5 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 331745-97:
(8*3)+(7*3)+(6*1)+(5*7)+(4*4)+(3*5)+(2*9)+(1*7)=142
142 % 10 = 2
So 331745-97-2 is a valid CAS Registry Number.