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38135-74-9

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38135-74-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 38135-74-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,8,1,3 and 5 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 38135-74:
(7*3)+(6*8)+(5*1)+(4*3)+(3*5)+(2*7)+(1*4)=119
119 % 10 = 9
So 38135-74-9 is a valid CAS Registry Number.

38135-74-9Relevant articles and documents

Transformations photochimiques d'endoperoxydes derives d'hydrocarbures aromatiques polycycliques V. Cas de I'endoperoxyde de rubrene: formation d'un nouveau type de photo-isomere

Rigaudy, Jean,Cuong, Nguyen Kim,Godard, Jean-Yves

, p. 78 - 83 (2007/10/02)

Photolysis in benzene at long wavelengths (λ>=420 nm) of rubrene endoperoxide. 11 affords mainly the bicyclic acetal 18, accompanied by the rubrene "iso-oxyde" 22 and by a new isomer: 11b-phenoxy-5a,6,11-triphenyl-5a,11b-dihydro-naphto cyclobutabenzo(b)furan 23, the structure of which has been established by 13C NMR.These various compounds result very likely from subsequent isomerizations of the two unstable meso-diepoxydes 13 and 14 arising first in the process.Moreover, diepoxide 14, precursor of 22 and 23, has been trapped by N-methylmaleimide as adduct 15.

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