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o-nitrophenyl-5,5'-diethoxycarbonyl-2,2'-dipyrrylmethane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

191337-75-4

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191337-75-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191337-75-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,3,3 and 7 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 191337-75:
(8*1)+(7*9)+(6*1)+(5*3)+(4*3)+(3*7)+(2*7)+(1*5)=144
144 % 10 = 4
So 191337-75-4 is a valid CAS Registry Number.

191337-75-4Relevant academic research and scientific papers

Synthesis and Atropisomerism of meso-Tetraarylporphyrins with Mixed meso-Aryl Groups Having ortho-Substituents

Setsune, Jun-ichiro,Hashimoto, Masahito,Shiozawa, Kazuaki,Hayakawa, Jun-ya,Ochi, Tomohisa,Masuda, Ryoichi

, p. 1407 - 1424 (1998)

meso-Tetraarylporphyrins having two kinds of ortho-substituted meso-aryl groups alternately at 5-, 10-, 15-, and 20-positions have been prepared by way of the modified MacDonald -type condensation of α,α'-free aryldipyrrylmethanes with aryl aldehydes

Synthesis and Separation of meso-Tetraarylporphyrins with Ci Symmetry

Setsune, Jun-ichiro,Hashimoto, Masahito

, p. 657 - 658 (2007/10/02)

5,15-Di(o-acetylaminophenyl)-10,20-di-1-(2-methoxynaphthyl)porphyrin was prepared by way of o-acetylaminophenyl-2,2'-dipyrrylmethane; the expected 5 atropisomers (αα'ββ', αα'βα', αβ'αβ', αα'αβ', αα'αα') have been separated and characterised on the basis o

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