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72721-34-7

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72721-34-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72721-34-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,7,2 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 72721-34:
(7*7)+(6*2)+(5*7)+(4*2)+(3*1)+(2*3)+(1*4)=117
117 % 10 = 7
So 72721-34-7 is a valid CAS Registry Number.

72721-34-7Relevant articles and documents

Interaction of fluoroalkyl-containing β-diketones with amines

Filyakova,Ratner,Karpenko,Pashkevich

, p. 2163 - 2168 (2007/10/03)

The composition of products of the interaction of asymmetric fluoroalkyl-containing β-diketones with amines was studied. Mixtures of regioisomeric β-aminovinylketones and products of cleavage and secondary condensation are formed, depending on the temperature, the solvent, the nature of the fluorinated and nonfluorinated substituents in the β-diketone, and the basicity of the amine. The major product is a β-aminovinylketone in which the NH2 group is removed from the fluoroalkyl substituent. No β-aminovinylimines, products of condensation involving two electrophilic centers, were observed.

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