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8-(3,4-Dimethoxy-phenyl)-5-methoxy-2,2-dimethyl-3,4-dihydro-2H-pyrano[2,3-f]chromen-10-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

135940-07-7

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135940-07-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135940-07-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,9,4 and 0 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 135940-07:
(8*1)+(7*3)+(6*5)+(5*9)+(4*4)+(3*0)+(2*0)+(1*7)=127
127 % 10 = 7
So 135940-07-7 is a valid CAS Registry Number.

135940-07-7Relevant academic research and scientific papers

Synthesis of 3,4-dihydro-2,2-dimethyl-2Hpyranoflavones

Kumar,Rajendra Prasad

, p. 158 - 160 (2007/10/03)

Treatment of 2-benzylidene derivatives 1a-k with potassium cyanide in ethanol furnish 3,4-dihydro-2,2-dimethyl-2H-pyranoflavones 2a-k in quantitative yield. The structures of the final products have been elucidated on the basis of spectral studies.

A Facile Synthesis of Isopongaflavone, Atalantoflavone Dimethylether, Racemoflavone Dimethylether and their Analogues

Vijayalakshmi, C. S.,Prasad, K. J. Rajendra

, p. 1021 - 1025 (2007/10/02)

A convenient route to pyranoflavones (natural and synthetic) from acetyl hydroxy chroman via the corresponding analogues by the use of Claisen condensation in the key step is reported.Keywords: 2-Aryl-8,8-dimethyl-6,7-dihydro-4H,8H-benzodipy

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