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1444554-75-9

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1444554-75-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1444554-75-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,4,5,5 and 4 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1444554-75:
(9*1)+(8*4)+(7*4)+(6*4)+(5*5)+(4*5)+(3*4)+(2*7)+(1*5)=169
169 % 10 = 9
So 1444554-75-9 is a valid CAS Registry Number.

1444554-75-9Downstream Products

1444554-75-9Relevant articles and documents

20(S)-Protopanaxadiol (PPD) analogues chemosensitize multidrug-resistant cancer cells to clinical anticancer drugs

Liu, Junhua,Wang, Xu,Liu, Peng,Deng, Rongxin,Lei, Min,Chen, Wantao,Hu, Lihong

, p. 4279 - 4287 (2013/07/25)

Novel 20(S)-protopanoxadiol (PPD) analogues were designed, synthesized, and evaluated for the chemosensitizing activity against a multidrug resistant (MDR) cell line (KBvcr) overexpressing P-glycoprotein (P-gp). Structure-activity relationship analysis showed that aromatic substituted aliphatic amine at the 24-positions (groups V) effectively and significantly sensitized P-gp overexpressing multidrug resistant (MDR) cells to anticancer drugs, such as docetaxel (DOC), vincristine (VCR), and adriamycin (ADM). PPD derivatives 12 and 18 showed 1.3-2.6 times more effective reversal ability than verapamil (VER) for DOC and VCR. Importantly, no cytotoxicity was observed by the active PPD analogues (5 μM) against both non-MDR and MDR cells, suggesting that PPD analogues serve as novel lead compounds toward a potent and safe resistance modulator. Moreover, a preliminary mechanism study demonstrated that the chemosensitizing activity of PPD analogues results from inhibition of P-glycoprotein (P-gp) overexpressed in MDR cancer cells.

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