XR9051 Hydrochloride

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MedKoo CAT#: 525850

CAS#: 180422-22-4

Description: XR9051 Hydrochloride is a potent modulator of P-glycoprotein-mediated multidrug resistance (MDR), inhibiting the binding of cytotoxics to P-glycoprotein.

Price and Availability

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Pricing updated 2020-07-11. Prices are subject to change without notice.

XR9051 Hydrochloride is not in stock, but may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to sales@medkoo.com to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 525850
Name: XR9051 Hydrochloride
CAS#: 180422-22-4
Chemical Formula: C39H38N4O5
Exact Mass: 642.2842
Molecular Weight: 642.756
Elemental Analysis: C, 72.88; H, 5.96; N, 8.72; O, 12.45

Related CAS #: 180422-22-4 (HCl)   762219-35-2 (free)  

Synonym: XR9051 Hydrochloride

IUPAC/Chemical Name: N-(4-(2-(6,7-Dimethoxy-1,2,3,4-tetrahydro-2-isoquinolyl)ethyl)phenyl)-3-((3Z,6Z)-6-benzylidene-1-methyl-2,5-dioxo-3-pipera zinylidene hydrochloride


InChi Code: InChI=1S/C39H38N4O5/c1-42-34(22-27-8-5-4-6-9-27)38(45)41-33(39(42)46)21-28-10-7-11-30(20-28)37(44)40-32-14-12-26(13-15-32)16-18-43-19-17-29-23-35(47-2)36(48-3)24-31(29)25-43/h4-15,20-24H,16-19,25H2,1-3H3,(H,40,44)(H,41,45)/b33-21-,34-22-

SMILES Code: O=C(NC1=CC=C(CCN2CCC(C=C(OC)C(OC)=C3)=C3C2)C=C1)C4=CC(/C=C5NC(/C(N(C)C\5=O)=C/C6=CC=CC=C6)=O)=CC=C4

Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:


1: Dale IL, Tuffley W, Callaghan R, Holmes JA, Martin K, Luscombe M, Mistry P, Ryder H, Stewart AJ, Charlton P, Twentyman PR, Bevan P. Reversal of P-glycoprotein-mediated multidrug resistance by XR9051, a novel diketopiperazine derivative. Br J Cancer. 1998 Oct;78(7):885-92. PubMed PMID: 9764579; PubMed Central PMCID: PMC2063130.

2: Mistry P, Plumb J, Eccles S, Watson S, Dale I, Ryder H, Box G, Charlton P, Templeton D, Bevan PB. In vivo efficacy of XR9051, a potent modulator of P-glycoprotein mediated multidrug resistance. Br J Cancer. 1999 Apr;79(11-12):1672-8. PubMed PMID: 10206276; PubMed Central PMCID: PMC2362811.

3: Minuesa G, Arimany-Nardi C, Erkizia I, Cedeño S, Moltó J, Clotet B, Pastor-Anglada M, Martinez-Picado J. P-glycoprotein (ABCB1) activity decreases raltegravir disposition in primary CD4+P-gphigh cells and correlates with HIV-1 viral load. J Antimicrob Chemother. 2016 Oct;71(10):2782-92. doi: 10.1093/jac/dkw215. Epub 2016 Jun 21. PubMed PMID: 27334660; PubMed Central PMCID: PMC5031918.

4: Wheeler R, Neo SY, Chew J, Hladky SB, Barrand MA. Use of membrane vesicles to investigate drug interactions with transporter proteins, P-glycoprotein and multidrug resistance-associated protein. Int J Clin Pharmacol Ther. 2000 Mar;38(3):122-9. PubMed PMID: 10739115.

5: Martin C, Berridge G, Higgins CF, Mistry P, Charlton P, Callaghan R. Communication between multiple drug binding sites on P-glycoprotein. Mol Pharmacol. 2000 Sep;58(3):624-32. PubMed PMID: 10953057.