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4765-85-9

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4765-85-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4765-85-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,7,6 and 5 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4765-85:
(6*4)+(5*7)+(4*6)+(3*5)+(2*8)+(1*5)=119
119 % 10 = 9
So 4765-85-9 is a valid CAS Registry Number.

4765-85-9Relevant articles and documents

Simple route to 3-(2-indolyl)-1-propanones via a furan recyclization reaction

Butin, Alexander V.,Smirnov, Sergey K.,Stroganova, Tatyana A.,Bender, Wolfgang,Krapivin, Gennady D.

, p. 474 - 491 (2007/10/03)

A simple route to 1-R-3-(2-indolyl)-1-propanones has been elaborated based on recyclization of 2-(2-aminobenzyl)furan derivatives. Being a modification of the Reissert indole synthesis, our approach employs the furan ring as a source of carbonyl function. This approach is general and allows varying of substituents in aromatic ring as well as in 3-position of indole nucleus.

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