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Methanone, (2-chloro-6-methyl-3-pyridinyl)(3-nitrophenyl)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

191220-79-8

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191220-79-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191220-79-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,2,2 and 0 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 191220-79:
(8*1)+(7*9)+(6*1)+(5*2)+(4*2)+(3*0)+(2*7)+(1*9)=118
118 % 10 = 8
So 191220-79-8 is a valid CAS Registry Number.

191220-79-8Relevant articles and documents

Synthetic studies on selective type 4 phosphodiesterase (PDE 4) inhibitors. 1. Structure-activity relationships and pharmacological evaluation of 1,8-naphthyridin-2(1H)-one derivatives.

Takayama, Kazuhisa,Iwata, Masahiro,Hisamichi, Hiroyuki,Okamoto, Yoshinori,Aoki, Motonori,Niwa, Akira

, p. 1050 - 1059 (2007/10/03)

In order to develop novel and orally active phosphodiesterase (PDE) 4 inhibitors, random screening was performed using our chemical library to find YM-10335 possessing the 1,8-naphthyridin-2(1H)-one skeleton which is a completely different structure from rolipram. In this report, the syntheses and structure-activity relationships of the YM-10335 derivatives were described. Some compounds showed selective inhibitory activities for PDE 4 derived from human peripheral blood cells and no effect on the other PDE types (1, 2, 3, 5). The inhibition of the tumor necrosis factor-alpha (TNF-alpha) release in vitro and the carrageenan-induced pleurisy in rats were also described.

Pyrido[2,3-D]pyrimidine derivatives and pharmaceutical compositions thereof

-

, (2008/06/13)

PCT No. PCT/JP96/03389 Sec. 371 Date Apr. 30, 1998 Sec. 102(e) Date Apr. 30, 1998 PCT Filed Nov. 20, 1996 PCT Pub. No. WO97/19078 PCT Pub. Date May 29, 1997This invention relates to compounds (I) or pharmaceutically acceptable salts thereof, having a func

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