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80759-01-9

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80759-01-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80759-01-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,7,5 and 9 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 80759-01:
(7*8)+(6*0)+(5*7)+(4*5)+(3*9)+(2*0)+(1*1)=139
139 % 10 = 9
So 80759-01-9 is a valid CAS Registry Number.

80759-01-9Relevant articles and documents

Construction of the Bicyclooctane Ring System by an Intramolecular Diels-Alder Reaction - A Synthetic Approach to Atisane

Ihara, Masataka,Toyota, Masahiro,Fukumoto, Keiichiro,Kametani, Tetsuji,Honda, Toshio

, p. 2263 - 2277 (2007/10/02)

1,2,3,4-Tetrahydro-6,7-dimethoxy-1-(3-methoxybenzyl)-2-methylisoquinoline (3) was converted into the olefinic enone (7).After formation of the corresponding silyl enol ether (8), intramolecular Diels-Alder reaction of the triene (8) produced two stereoisomers of 3,10-ethano-3,4,4a,9,10,10a-hexahydro-6,7-dimethoxyphenanthren-2(1H)-one (9), one of which was transformed into the exomethylene (13) and the olefinic methyl compound (16).

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