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5-(3,4,5-Trimethoxy-phenyl)-naphtho[2,3-d][1,3]dioxole-6,7-dicarboxylic acid 7-methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

98449-76-4

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98449-76-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98449-76-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,4,4 and 9 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 98449-76:
(7*9)+(6*8)+(5*4)+(4*4)+(3*9)+(2*7)+(1*6)=194
194 % 10 = 4
So 98449-76-4 is a valid CAS Registry Number.

98449-76-4Relevant academic research and scientific papers

A NEW ROUTE TO 1-PHENYLNAPHTHALENES BY CYCLOADDITION: A SIMPLE AND SELECTIVE SYNTHESIS OF SOME NAPHTHALENE LIGNAN LACTONES

Takano, Seiichi,Otaki, Shizuo,Ogasawara, Kunio

, p. 1659 - 1660 (1985)

2-(2-Dithianyl)benzhydrols (2 a-c) undergo facile cycloaddition reaction with maleic anhydride under thermal conditions to give 1-phenyl-naphthalenes (7 a-c) in one step.The naphthalenes (7 a-c) have been converted into the naphthalene lignan lactones, (9 a-c) and (10 a-c).

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