38439-97-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 38439-97-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,8,4,3 and 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 38439-97:
(7*3)+(6*8)+(5*4)+(4*3)+(3*9)+(2*9)+(1*7)=153
153 % 10 = 3
So 38439-97-3 is a valid CAS Registry Number.