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4-hydroxy-5-ethylcoumarin is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

252567-44-5

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252567-44-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 252567-44-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,2,5,6 and 7 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 252567-44:
(8*2)+(7*5)+(6*2)+(5*5)+(4*6)+(3*7)+(2*4)+(1*4)=145
145 % 10 = 5
So 252567-44-5 is a valid CAS Registry Number.

252567-44-5Downstream Products

252567-44-5Relevant academic research and scientific papers

A straightforward entry into polyketide monoprenylated furanocoumarins and pyranocoumarins

Appendino, Giovanni,Cravotto, Giancarlo,Giovenzana, Giovanni B.,Palmisano, Giovanni

, p. 1627 - 1631 (1999)

A regioselective synthesis of 5-methyl- and 5-ethyl-4- hydroxycoumarin (1b and 1c, respectively) is described. Starting from these compounds, several prenylated polyketide coumarins of limited availability from natural sources and important taxonomic relevance were prepared.

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