437708-50-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 437708-50-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,7,7,0 and 8 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 437708-50:
(8*4)+(7*3)+(6*7)+(5*7)+(4*0)+(3*8)+(2*5)+(1*0)=164
164 % 10 = 4
So 437708-50-4 is a valid CAS Registry Number.
437708-50-4Relevant academic research and scientific papers
PROCESS FOR PREPARING ACTIVE ESTERS
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Page/Page column 6, (2008/06/13)
The present invention relates to a method for the preparation of active ester, characterized by subjecting to a reaction a mixture of a carboxylic acid, which is a starting material, reagent which forms active ester and a base or a starting material carbo
