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64923-68-8

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64923-68-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64923-68-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,9,2 and 3 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 64923-68:
(7*6)+(6*4)+(5*9)+(4*2)+(3*3)+(2*6)+(1*8)=148
148 % 10 = 8
So 64923-68-8 is a valid CAS Registry Number.

64923-68-8Relevant articles and documents

Carbon-carbon bond cleavage in fluorescent pyronin analogues induced by yellow light

?tacko, Peter,?ebej, Peter,Veetil, Aneesh Tazhe,Klán, Petr

supporting information, p. 4918 - 4921 (2013/01/15)

A novel class of pyronin analogues, which undergoes a photochemically induced cleavage of the C-C bond in the presence of water in both solution and on a silica gel surface upon direct irradiation with visible light, is reported. The reaction course can be monitored by characteristic fluorescence of both the starting compound and the final product. This system could find useful applications in the field of photoremovable protecting groups or caged fluorophores.

First desymmetrization of 1,3-propanediamine derivatives in organic solvent. Development of a new route for the preparation of optically active amines

Bustos, Eduardo,Gotor-Fernandez, Vicente,Montejo-Bernardo, Jose,Garcia-Granda, Santiago,Gotor, Vicente

, p. 4203 - 4206 (2008/02/14)

The chemical synthesis and enzymatic desymmetrization of a panel of prochiral diamines have been successfully described for the first time using lipases in organic solvents. A family of 2-aryl-1,3-propanediamines has been obtained with high enantiopurity and good yields in the PSL-catalyzed reaction using diallyl carbonate in 1,4-dioxane.

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