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≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at 2-8°C,Desiccated Ships Wet ice Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
PF-543 Citrate (Sphingosine Kinase 1 Inhibitor II Citrate) is a potent, selective, reversible and sphingosine-competitive SPHK1 inhibitor with an IC 50 of 2 nM and a K i of 3.6 nM. PF-543 Citrate is >100-fold selectivity for SPHK1 over SPHK2 . PF-543 Citrate is an effective potent inhibitor of sphingosine 1-phosphate (S1P) formation in whole blood with an IC 50 of 26.7 nM. PF-543 Citrate induces apoptosis , necrosis, and autophagy
In Vitro
PF-543 (10-1000 nM; 24?hours; PASM cells) treatment abolishes SK1 expression at nM concentrations. ?\nPF-543 (0.1-10 μM; 24 hours; PASM cells) treatment induces caspase-3/7 activity. ?\nPF-543 inhibits C 17 -S1P formation in 1483 cells with an IC 50 of 1.0 nM. ?\nSphK1 inhibition by PF-543 causes a dose-dependent depletion of the intracellular level of S1P with EC 50 concentration of 8.4 nM and a concomitant elevation of the intracellular level of sphingosine in 1483 cells. The level of endogenous S1P in 1483 cells after a 1 h treatment with 200 nM PF-543 is decreased 10-fold, producing a proportional increase in the level of sphingosine. MCE has not independently confirmed the accuracy of these methods. They are for reference only. Western Blot AnalysisCell Line: Human pulmonary arterial smooth muscle (PASM) cells Concentration: 10 nM, 100 nM, 1000 nM Incubation Time: 24 hours Result: Abolished SK1 expression at nM concentrations. Apoptosis AnalysisCell Line: Human pulmonary arterial smooth muscle (PASM) cells Concentration: 0.1 μM, 1 μM, 10 μM Incubation Time: 24 hours Result: Induced caspase-3/7 activity in cultured human pulmonary smooth muscle cells.
In Vivo
PF-543 (1 mg/kg; intraperitoneal injection; every second day; for 21 days; female C57BL/6 J mice) treatment has no effect on vascular remodelling but reduces right ventricular hypertrophy. The protection involves a reduction in the expression of p53 and an increase in the expression of anti-oxidant nuclear factor Nrf-2. ?\nMice are initially dosed (ip) with 10 mg/kg or 30 mg/kg of PF-543 for 24 h and the T 1/2 is 1.2 h in blood samples. Administration of 10 mg/kg PF-543 for 24 h to mice induces a decrease in SK1 expression in pulmonary vessels. MCE has not independently confirmed the accuracy of these methods. They are for reference only. Animal Model: Female C57BL/6 J mice (7-12 week-old) with hypoxic-induced pulmonary arterial hypertensionDosage: 1 mg/kg Administration: Intraperitoneal injection; every second day; for 21 days Result: Reduced right ventricular hypertrophy. The protection involves a reduction in the expression of p53 (that promotes cardiomyocyte death) and an increase in the expression of anti-oxidant nuclear factor Nrf-2.
Form:Solid
IC50& Target:SphK1
Comprehensive hazard, handling, storage, and regulatory compliance document.
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View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organic acids and derivatives |
| Klasse | Carboxylic acids and derivatives |
| Subclass | Tricarboxylic acids and derivatives |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Tricarboxylic acids and derivatives |
| Alternative Parents | Benzenesulfonyl compounds Benzylamines Phenylmethylamines Phenoxy compounds Phenol ethers Alkyl aryl ethers Toluenes Aralkylamines Alpha hydroxy acids and derivatives N-alkylpyrrolidines Sulfones Tertiary alcohols 1,2-aminoalcohols Trialkylamines Carboxylic acids Azacyclic compounds Hydrocarbon derivatives Carbonyl compounds Primary alcohols Organic oxides |
| Molecular Framework | Not available |
| Substituents | Benzenesulfonyl group - Tricarboxylic acid or derivatives - Phenoxy compound - Benzylamine - Phenol ether - Phenylmethylamine - Alkyl aryl ether - Aralkylamine - Toluene - Alpha-hydroxy acid - Monocyclic benzene moiety - Hydroxy acid - Benzenoid - N-alkylpyrrolidine - Pyrrolidine - Sulfone - Sulfonyl - Tertiary alcohol - 1,2-aminoalcohol - Tertiary amine - Tertiary aliphatic amine - Organoheterocyclic compound - Carboxylic acid - Ether - Azacycle - Primary alcohol - Organonitrogen compound - Organooxygen compound - Organosulfur compound - Carbonyl group - Hydrocarbon derivative - Organic oxide - Amine - Alcohol - Organic nitrogen compound - Organic oxygen compound - Aromatic heteromonocyclic compound |
| Beschreibung | This compound belongs to the class of organic compounds known as tricarboxylic acids and derivatives. These are carboxylic acids containing exactly three carboxyl groups. |
| External Descriptors | Not available |
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| Löslichkeit | DMSO : ≥ 100 mg/mL (152.04 mM) H2O : 50 mg/mL (76.02 mM; Need ultrasonic) |
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| Molekulargewicht | 657.700 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 5 |
| Hydrogen Bond Acceptor Count | 12 |
| Rotatable Bond Count | 14 |
| Exact Mass | 657.224 Da |
| Monoisotopic Mass | 657.224 Da |
| Topological Polar Surface Area | 207.000 Ų |
| Heavy Atom Count | 46 |
| Formal Charge | 0 |
| Complexity | 906.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 1 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 2 |