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83687-15-4

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83687-15-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83687-15-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,6,8 and 7 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 83687-15:
(7*8)+(6*3)+(5*6)+(4*8)+(3*7)+(2*1)+(1*5)=164
164 % 10 = 4
So 83687-15-4 is a valid CAS Registry Number.

83687-15-4Downstream Products

83687-15-4Relevant articles and documents

A NEW ACCESS TO THE ANTHRACENE CORE. SYNTHESIS OF TWO WATER SOLUBLE SINGLET OXYGEN TRAPS DERIVED FROM 1,3-DIPHENYLISOBENZOFURAN AND 9,10-DIPHENYLANTHRACENE

Schmitz, C.,Aubry, J. M.,Rigaudy, J.

, p. 1425 - 1430 (2007/10/02)

Two water soluble 1O2 traps: dipotassium 1,3-diphenylisobenzofuran-5,6-dicarboxylate and tetrapotassium 9,10-diphenylanthracene-2,3,6,7-tetracarboxylate have been prepared in good yields and a new access to the anthracene skeleton is described.The key-step of this synthesis consists of a cycloaddition between 1,3-diphenylisobenzofurans and dimethyl 7-oxabicyclo-5-heptene-2,3-dicarboxylate; the adducts thus obtained undergo dehydration to afford the corresponding anthracenes.

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