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5-methyl-2,4-diphenylfuran-3(2H)-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

34999-91-2

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34999-91-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34999-91-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,9,9 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 34999-91:
(7*3)+(6*4)+(5*9)+(4*9)+(3*9)+(2*9)+(1*1)=172
172 % 10 = 2
So 34999-91-2 is a valid CAS Registry Number.

34999-91-2Relevant academic research and scientific papers

Base Catalysed Rearrangements Involving Ylide Intermediates. Part 11. Rearrangements of 3-phenylprop-2-ynylammonium Ylides

Mageswaran, Sivapathasuntharam,Ollis, W. David,Southam, Dolores A.,Sutherland, Ian O.,Thebtaranonth, Yodhathai

, p. 1969 - 1980 (2007/10/02)

The propynylammonium salt (5) reacts with aqueous sodium hydroxide to give the allene (7) and a new ylide (11).The simultaneous formation of (7) and (11) suggests that the apparent sigmatropic rearrangement of the propynyl ylide (6) to the allene (7

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