Psora 4

Catalog No. Size PriceQuantity
M22872-C Contact for quotation $100Unavailable


EC50: 3 nM Psora 4 is a Kv1.3 blocker. The voltage-gated Kv1.3 channel and the Ca2+-activated IKCa1 channel has been reported to promote and sustain Ca2+ signaling in human T cells via providing the driving force for Ca2+ entry through voltage-independent Ca2+ channels. Selective blockade of Kv1.3 and/or IKCa1 leads to membrane depolarization, reduced Ca2+ entry, as well as diminished cytokine proliferation and production. In vitro: Psora-4 could block Kv1.3 in a dose-dependent manner. Psora-4 was found to be the most potent small-molecule Kv1.3 blocker known. Psora-4 exhibited 17- to 70-fold selectivity for Kv1.3 over Kv1-family channels including Kv1.1, Kv1.2, Kv1.4, and Kv1.7 and also showed no effect on human ether-a-go-go-related channel, Kv3.1, or the neuronal NaV1.2 channel. In addition, Psora-4 could suppress the proliferation of rat and human myelin-specific effector memory T cells with EC50 values of 60 and 25 nM, respectively, without persistently suppressing the peripheral blood naive and central memory T cells . In vivo: In a study of in vivo toxicity in rats, Psora-4 was found not to show any signs of acute toxicity following five daily subcutaneous injections at 33 mg/kg body weight . Clinical trial: N/A

Product information

CAS Number: 724709-68-6

Molecular Weight: 334.37

Formula: C21H18O4

Chemical Name: 4-(4-phenylbutoxy)-7H-furo[3,2-g]chromen-7-one

Smiles: O=C1C=CC2C(OCCCCC3C=CC=CC=3)=C3C=COC3=CC=2O1


InChi: InChI=1S/C21H18O4/c22-20-10-9-16-19(25-20)14-18-17(11-13-23-18)21(16)24-12-5-4-8-15-6-2-1-3-7-15/h1-3,6-7,9-11,13-14H,4-5,8,12H2

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

Products are for research use only. Not for human use.

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