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16209-13-5

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16209-13-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16209-13-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,2,0 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 16209-13:
(7*1)+(6*6)+(5*2)+(4*0)+(3*9)+(2*1)+(1*3)=85
85 % 10 = 5
So 16209-13-5 is a valid CAS Registry Number.

16209-13-5Relevant articles and documents

SYNTHESIS OF (+/-)-DIMETHYL CURVULARIN BASED ON THE PALLADIUM-CATALYZED CARBONYLATION OF 3,5-DIMETHOXYBENZYL CHLORIDE USING A BUTADIENE TELOMER AS A BUILDING BLOCK

Takahashi, Takashi,Ikeda, Hiroshi,Tsuji, Jiro

, p. 3885 - 3888 (2007/10/02)

Palladium -catalyzed carbonylation of 3,5-dimethoxybenzyl chloride (13) with benzyl 7-hydroxyoctanoate (12) afforded benzyl 7-(3,5-dimethoxyphenylacetoxy)octanoate (6) in 70percent yield, which is the precursor of Curvularin (4).The ester (12) was easily prepared from the butadiene telomer obtained by the palladium-catalyzed reaction of butadiene with acetic acid.

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