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67012-92-4

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67012-92-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67012-92-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,0,1 and 2 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 67012-92:
(7*6)+(6*7)+(5*0)+(4*1)+(3*2)+(2*9)+(1*2)=114
114 % 10 = 4
So 67012-92-4 is a valid CAS Registry Number.

67012-92-4Relevant articles and documents

TRANSFORMATIONS PHOTOCHIMIQUES d'ENDOPEROXYDES DERIVES d'HYDROCARBURES AROMATIQUES POLYCYCLIQUES-I; CAS DU PHOTOOXYDE DE DIPHENYL-9,10 ANTHRACENE; OBTENTION ET PROPRIETES DU DIEPOXYDE ISOMERE

Rigaudi, J.,Scribe, P.,Breliere, C.

, p. 2585 - 2593 (2007/10/02)

When irradiated at long wavelengths (λ>=435 nm), the 9,10-endoperoxide of 9,10-diphenylanthracene 1a isomerizes to the 4a,10:9,9a-diepoxide 4a, which can be isolated at low temperature.On warming at 20-25 deg C, 4a gives only the benzocyclobutenic diether 6a by electrocycling ring opening and cyclisation, whereas under irradiation it undergoes, degradation to 10-hydroxy-10-phenyl-9-anthrone 7a and isomerizations to the bicyclic acetal 8a and to the benzofurobenzofuran 9a.These transformations of 4a explain previous results obtained when irradiating 1a under various conditions; their mechanisms are discussed.

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