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3-(4-Nitrophenyl)-3-phenyl-3H-pyrazol-4,5-dicarbonsaeure-dimethylester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

113035-45-3

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113035-45-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 113035-45-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,0,3 and 5 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 113035-45:
(8*1)+(7*1)+(6*3)+(5*0)+(4*3)+(3*5)+(2*4)+(1*5)=73
73 % 10 = 3
So 113035-45-3 is a valid CAS Registry Number.

113035-45-3Relevant academic research and scientific papers

Photochromism of Simple 1,8a-Dihydroindolizines and 1,8a-Dihydro-5-azaindolizines

Dorweiler, Carmen,Holderbaum, Martin,Muenzmay, Thomas,Spang, Peter,Duerr, Heinz,et al.

, p. 843 - 852 (2007/10/02)

In this paper we report on the synthesis of new photochromic 1,8a-dihydroindolizines and 1,8a-dihydro-5-azaindolizines 19 and betaines 18 as well as their precursors 3,3-diphenyl-3H-pyrazoles 13 and cyclopropenes 15.The stuctures of the betaines 18 are proved for the first time by X-ray analysis of 18l.The last part of this paper deals with Hammett correlations of the rate constant of the 1,5-electrocyclisation and MINDO/3 calculations of the thermal ring closure 18 -> 19.

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