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4H-1-Benzopyran-4-one, 2,3-dihydro-3,3-bis(hydroxymethyl)-2-phenyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138221-76-8

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138221-76-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138221-76-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,2,2 and 1 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 138221-76:
(8*1)+(7*3)+(6*8)+(5*2)+(4*2)+(3*1)+(2*7)+(1*6)=118
118 % 10 = 8
So 138221-76-8 is a valid CAS Registry Number.

138221-76-8Relevant academic research and scientific papers

SYNTHESIS OF SPIROCYCLOPROPANE CARBOXYLIC ACIDS FROM FLAVANONES AND THEIR CONVERSION TO THE CORRESPONDING PYRIDAZINONES

Litkei, D.,Khilya, V. P.,Turov, A. V.,Siladi, L.,Bokotei, S.,Antush, Sh.

, p. 541 - 547 (1995)

The conversion of flavanones to spirocyclopropane carboxylic acids is reported.It has been show that a mixture of three isomers is formed.Their structure and configuration have been elucidated from PMR data.Substituted pyridazinones were obtained from the synthesized acids.

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