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74439-10-4

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74439-10-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74439-10-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,3 and 9 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 74439-10:
(7*7)+(6*4)+(5*4)+(4*3)+(3*9)+(2*1)+(1*0)=134
134 % 10 = 4
So 74439-10-4 is a valid CAS Registry Number.

74439-10-4Downstream Products

74439-10-4Relevant articles and documents

The Electron Transfer Reactions of Cyano Substituted Pyridines and Quinolines with Thermally Generated Diphenyl Ketyl

McDevitt, Patricia,Vittimberga, Bruno M.

, p. 1903 - 1908 (2007/10/02)

Electron transfer reactions of cyano substituted pyridines and quinolines with thermally generated diphenyl ketyl are reported.When E1/2(-) for the heterocycle is less negative than -2 V, electron transfer occurs from the ketyl to the heterocyclic base.In some cases the products obtained from the thermal reaction are the same as those obtained from the photochemical reaction with benzophenone and alcohols.In other cases different products are formed.Two bases, 2-pyridinecarbonitrile and 2,4-pyridinedicarbonitrile, undergo regiospecific reactions in which the course of the reaction is determined by the acidity of the medium.A mechanism in which the heterocyclic nitrogen is involved in the substitution process at the 2-position is proposed.

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