317328-67-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 317328-67-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,7,3,2 and 8 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 317328-67:
(8*3)+(7*1)+(6*7)+(5*3)+(4*2)+(3*8)+(2*6)+(1*7)=139
139 % 10 = 9
So 317328-67-9 is a valid CAS Registry Number.