54340-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54340-20-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,3,4 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 54340-20:
(7*5)+(6*4)+(5*3)+(4*4)+(3*0)+(2*2)+(1*0)=94
94 % 10 = 4
So 54340-20-4 is a valid CAS Registry Number.
54340-20-4Relevant academic research and scientific papers
Process for producing vitamin A
-
, (2008/06/13)
A process for producing vitamin A esters, vitamin A aldehyde and vitamin A acid esters from esters of 3,7-dimethyl-9-(1-hydroxy-2,2,6-trimethylcyclohexyl)-nona-2,4,6-trien-8-yn-1-ol and 3,7-dimethyl-9-(1-hydroxy-2,2,6-trimethylcyclohexyL)-nona-2,4,6-trien-8-ynoic acid including intermediates in this process.
