503177-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 503177-31-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,1,7 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 503177-31:
(8*5)+(7*0)+(6*3)+(5*1)+(4*7)+(3*7)+(2*3)+(1*1)=119
119 % 10 = 9
So 503177-31-9 is a valid CAS Registry Number.
503177-31-9Relevant articles and documents
Designing a non-volatile imaging switch for mass-persistent, chemically amplified photolithography: A model study
Klopp, John M.,Bensel, Nicolas,Fresco, Zachary M.,Frechet, Jean M. J.
, p. 2956 - 2957 (2002)
An acid catalysed rearrangement that transforms a bicyclic lactone into a phenolic carboxylic acid has been tested for potential use in chemically amplified microlithographic imaging.