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SML0572

Sigma-Aldrich

Valspodar

≥98% (HPLC)

Synonym(s):

6-[(2S,4R,6E)-4-Methyl-2-(methylamino)-3-oxo-6-octenoic acid]cyclosporin D, Amdray, PSC833, [3′-Desoxy-3′-oxo-MeBmt]1-[Val]2-cyclosporin

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About This Item

Empirical Formula (Hill Notation):
C63H111N11O12
CAS Number:
121584-18-7
Molecular Weight:
1214.62
MDL number:
MFCD00907207
UNSPSC Code:
12161501
NACRES:
NA.77

Assay

≥98% (HPLC)

form

powder

storage condition

desiccated

color

white to beige

shipped in

wet ice

storage temp.

−20°C

InChI

1S/C63H111N11O12/c1-26-27-28-41(16)53(76)52-57(80)67-49(38(10)11)61(84)68(19)33-48(75)69(20)44(29-34(2)3)56(79)66-50(39(12)13)62(85)70(21)45(30-35(4)5)55(78)64-42(17)54(77)65-43(18)58(81)71(22)46(31-36(6)7)59(82)72(23)47(32-37(8)9)60(83)73(24)51(40(14)15)63(86)74(52)25/h26-27,34-47,49-52H,28-33H2,1-25H3,(H,64,78)(H,65,77)(H,66,79)(H,67,80)/b27-26+/t41-,42+,43-,44+,45+,46+,47+,49+,50+,51+,52+/m1/s1

InChI key

YJDYDFNKCBANTM-QCWCSKBGSA-N

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Application

Valspodar/ PSC-833 has been used as a ABCB1 (P-glycoprotein) inhibitor.

Biochem/physiol Actions

Valspodar is a nonimmunosuppressive cyclosporin analog and potent P-glycoprotein (MDR1) inhibitor. Valspodar reverses multidrug resistance (MDR) by inhibiting cellular drug efflux mediated by P-glycoprotein.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Ziyad Binkhathlan et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 81(1), 142-148 (2012-03-01)
Co-administration of P-glycoprotein (P-gp) inhibitors such as cyclosporine A (CyA) and its analogue valspodar with doxorubicin (DOX) can result in diminished clearance of DOX, leading to accentuated toxicity. The purpose of this study was to evaluate whether the effect of
Jonathan E Kolitz et al.
Blood, 116(9), 1413-1421 (2010-06-05)
Cancer and Leukemia Group B 19808 (CALGB 19808) is the only randomized trial of a second-generation P-glycoprotein (Pgp) modulator in untreated patients with acute myeloid leukemia (AML) younger than age 60 years. We randomly assigned 302 patients to receive induction
Lynae M Brayboy et al.
Fertility and sterility, 100(5), 1428-1435 (2013-08-21)
To determine the multidrug-resistant transporter (MDR) activity in oocytes and their potential role in oocyte susceptibility to chemotherapy. Experimental laboratory study. University and academic center for reproductive medicine. Women with eggs retrieved for intracytoplasmic sperm injection cycles and adult female
Benjamin L Emmink et al.
Gastroenterology, 141(1), 269-278 (2011-04-05)
Stem cells of normal tissues have resistance mechanisms that allow them to survive genotoxic insults. The stem cell-like cells of tumors are defined by their tumor-initiating capacity and may have retained these resistance mechanisms, making them resistant to chemotherapy. We
Kohjiro Nagao et al.
Biochimica et biophysica acta, 1831(2), 398-406 (2012-11-17)
ATP-binding cassette protein A1 (ABCA1) plays a key role in generating high-density lipoprotein (HDL). However, the detailed mechanism of HDL formation remains unclear; in order to reveal it, chemicals that specifically block each step of HDL formation would be useful.
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