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42240-30-2

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42240-30-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42240-30-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,2,4 and 0 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 42240-30:
(7*4)+(6*2)+(5*2)+(4*4)+(3*0)+(2*3)+(1*0)=72
72 % 10 = 2
So 42240-30-2 is a valid CAS Registry Number.

42240-30-2Relevant articles and documents

Antifeedant and mosquitocidal compounds from Delphinium x cultorum cv. Magic Fountains flowers

Miles, Jennifer E. C.,Ramsewak, Russel S.,Nair, Muraleedharan G.

, p. 503 - 506 (2000)

Six volatile compounds, ethylmethylbenzene (1), 1-isopentyl-2,4,5- trimethylbenzene (2), 2-(hex-3-ene-2-one)phenylmethyl ketone (3), E and Z isomers of 3-butylidene-3H-isobenzofuran-1-one (4 and 5), and 2-penten-1- ylbenzoic acid (6), were isolated from the mosquitocidal hexane extract of Delphinium x cultorum cv. Magic Fountains flowers. In addition, the ethyl acetate extract, which displayed corn earworm antifeedant activity, yielded 4-hydroxybenzoic acid (7) and bis(4-hydroxyphenyl)methanol (8). However, compounds 7 and 8 were not biologically active.

Reactivity of acetates in aqueous alcohols

Denegri, Bernard,Kronja, Olga

experimental part, p. 223 - 226 (2011/04/22)

A series of X,Y-substituted benzhydryl acetates (1-3) were subjected to solvolysis in various binary methanol/water and ethanol/water mixtures at 25 °C. The LFER equation log k = sf(Ef + Nf) was used to derive the nucleofu

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