Cas 54672-34-3,(2,5-diphenyl-3,4-dihydro-2<i>H</i>-pyrazol-3-yl)-phenyl-methanone

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Check Digit Verification of cas no

The CAS Registry Mumber 54672-34-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,6,7 and 2 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 54672-34:
(7*5)+(6*4)+(5*6)+(4*7)+(3*2)+(2*3)+(1*4)=133
133 % 10 = 3
So 54672-34-3 is a valid CAS Registry Number.

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54672-34-3Relevant academic research and scientific papers

Solvent-dependent copper-catalyzed synthesis of pyrazoles under aerobic conditions

Pünner, Florian,Sohtome, Yoshihiro,Sodeoka, Mikiko

, p. 14093 - 14096 (2016/12/09)

We present a copper-catalyzed oxidative cyclization of β,γ-unsaturated hydrazones, utilizing molecular oxygen as a stoichiometric oxidant. The methodology provides distinct classes of pyrazoles simply by changing the reaction solvent. Tris-substituted pyr

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