64809-42-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64809-42-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,8,0 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 64809-42:
(7*6)+(6*4)+(5*8)+(4*0)+(3*9)+(2*4)+(1*2)=143
143 % 10 = 3
So 64809-42-3 is a valid CAS Registry Number.
64809-42-3Relevant academic research and scientific papers
Polyene compounds
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, (2008/06/13)
15,15'-Didehydro-astaxanthin and ester derivatives thereof useful as coloring agents and intermediates for astaxanthin and a method for preparing astaxanthin from keto α-isophorone and intermediates therein.
