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869899-08-1

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869899-08-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 869899-08-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,9,8,9 and 9 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 869899-08:
(8*8)+(7*6)+(6*9)+(5*8)+(4*9)+(3*9)+(2*0)+(1*8)=271
271 % 10 = 1
So 869899-08-1 is a valid CAS Registry Number.

869899-08-1Relevant articles and documents

Synthesis and SAR/3D-QSAR studies on the COX-2 inhibitory activity of 1,5-diarylpyrazoles to validate the modified pharmacophore

Singh, Sunil K.,Saibaba,Rao, K. Srinivasa,Reddy, P. Ganapati,Daga, Pankaj R.,Rajjak, S. Abdul,Misra, Parimal,Rao, Y. Koteswar

, p. 977 - 990 (2007/10/03)

Diverse analogs of 1,5-diarylpyrazoles having 3-hydroxymethyl-4-sulfamoyl (SO2NH2)/methyl sulfonyl (SO2Me)-pheny group at N1 were synthesized and evaluated for their in vitro cyclooxygenase (COX-1/COX-2) inhibitory activity. The SAR study mainly involved the variations at positions C-3, C-5 and N1 of the pyrazole ring. Several small hydrophobic groups at/around position-4 of C-5 phenyl, viz. 3,4-dimethylphenyl analog 9, 3-methyl-4-methylsulfanylphenyl analog 14 and 2,3-dihydrobenzo[b] thiophenyl analog 17, exhibited impressive COX-2 inhibitory potency. In general, the sulfonamide analogues with a CHF2 at C-3 were found to be more potent than those having a CF3 group. The three dimensional quantitative structure activity relationship comprising comparative molecular field analysis (3D-QSAR-CoMFA) afforded the models with high predictivity which further validated the acceptance of hydroxymethyl (CH2OH) group in the hydrophilic pocket of the COX-2 enzyme.

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