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188817-18-7

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188817-18-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188817-18-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,8,1 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 188817-18:
(8*1)+(7*8)+(6*8)+(5*8)+(4*1)+(3*7)+(2*1)+(1*8)=187
187 % 10 = 7
So 188817-18-7 is a valid CAS Registry Number.

188817-18-7Downstream Products

188817-18-7Relevant articles and documents

Synthesis and biological evaluation of the 1,5-diarylpyrazole class of cyclooxygenase-2 inhibitors: Identification of 4-[5-(4-methylphenyl)- 3(trifluoromethyl)-1h-pyrazol-1-yl]benzenesulfonamide (sc-58635, celecoxib)

Penning, Thomas D.,Talley, John J.,Bertenshaw, Stephen R.,Carter, Jeffery S.,Collins, Paul W.,Docter, Stephen,Graneto, Matthew J.,Lee, Len F.,Malecha, James W.,Miyashiro, Julie M.,Rogers, Roland S.,Rogier,Yu, Stella S.,Anderson, Gary D.,Burton, Earl G.,Cogburn, J. Nita,Gregory, Susan A.,Koboldt, Carol M.,Perkins, William E.,Seibert, Karen,Veenhuizen, Amy W.,Zhang, Yan Y.,Isakson, Peter C.

, p. 1347 - 1365 (2007/10/03)

A series of sulfonamide-containing 1,5-diarylpyrazole derivatives were prepared and evaluated for their ability to block cyclooxygenase-2 (COX-2) in vitro and in vivo. Extensive structure-activity relationship (SAR) work was carried out within this series, and a number of potent and selective inhibitors of COX-2 were identified. Since an early structural lead (1f, SC- 236) exhibited an unacceptably long plasma half-life, a number of pyrazole analogs containing potential metabolic sites were evaluated further in vivo in an effort to identify compounds with acceptable pharmacokinetic profiles. This work led to the identification of 1i (4-[5-(4-methylphenyl)-3- (trifluoromethyl)-1H-pyrazol-1-y1]benzenesulfonamide, SC-58635, celecoxib), which is currently in phase III clinical trials for the treatment of rheumatoid arthritis and osteoarthritis.

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