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59263-70-6

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59263-70-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 59263-70-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,9,2,6 and 3 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 59263-70:
(7*5)+(6*9)+(5*2)+(4*6)+(3*3)+(2*7)+(1*0)=146
146 % 10 = 6
So 59263-70-6 is a valid CAS Registry Number.

59263-70-6Relevant articles and documents

Ortho Effect in the Fragmentation of 2-Acetoxychalcones under Electron Impact

Mentlein, Rolf,Vowinkel, Erich

, p. 330 - 333 (2007/10/02)

2-Acetoxychalcones decompose under electron impact conditions by loss of an acetoxy fragment to form flavylium ions.The effect is restricted to the ortho position and is reduced after hydrogenation of the chalcone double bond.The intense flavylium ion originates as shown by specific labelling with 18O-from two different fragmentation lines: (a) direct loss of an acetoxy radical by cleavage of the phenolic Ar-O bond and (b) sequential elimination of ketene and a hydroxy radical.

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