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23121-14-4

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23121-14-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23121-14-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,1,2 and 1 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 23121-14:
(7*2)+(6*3)+(5*1)+(4*2)+(3*1)+(2*1)+(1*4)=54
54 % 10 = 4
So 23121-14-4 is a valid CAS Registry Number.

23121-14-4Relevant articles and documents

Design and synthesis of pyrazolo[3,4-d]pyrimidines: Nitric oxide releasing compounds targeting hepatocellular carcinoma

Elshaier, Yaseen A.M.M.,Shaaban, Mohamed A.,Abd El Hamid, Mohammed K.,Abdelrahman, Mostafa H.,Abou-Salim, Mahrous A.,Elgazwi, Sara M.,Halaweish, Fathi

, p. 2956 - 2970 (2017/05/24)

A new series of pyrazolo[3,4-d]pyrimidines tethered with nitric oxide (NO) producing functionality was designed and synthesized. Sulforhodamine B (SRB) protein assay revealed that NO releasing moiety in the synthesized compounds significantly decreased the cell growth more than the des-NO analogues. Compounds 7C and 7G possessing N-para-substituted phenyl group, released the highest NO concentration of 4.6% and 4.7% respectively. Anti-proliferative activity of synthesized compounds on HepG2 cell line identified compounds 7h, 7p, 14a and 14b as the most cytotoxic compounds in the series of IC50?=?3, 5, 3 and 5?μM, respectively, compared to erlotinib as a reference drug (IC50?=?25?μM). Flow cytometry studies revealed that 7?h arrested the cells in G0/G1 phase of cell cycle while 7p arrested the cells in S phase. Moreover, docking study of the synthesized compounds on EGFR (PDB code: 1M17) and cytotoxicity study indicated that N-1 phenyl para substitution, pyrazole C-3 alkyl substitution and tethering the nitrate moiety through butyl group had a significant impact on the activity.

PYRAZOLO-PYRIMIDINE ANILINE COMPOUNDS

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Page 37; 38, (2010/02/05)

Compounds having the formula (I), where all substituents are as defined herein, and pharmaceutically acceptable salts, prodrugs, and solvates thereof, are useful as kinase inhibitors.

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