317338-34-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 317338-34-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,7,3,3 and 8 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 317338-34:
(8*3)+(7*1)+(6*7)+(5*3)+(4*3)+(3*8)+(2*3)+(1*4)=134
134 % 10 = 4
So 317338-34-4 is a valid CAS Registry Number.