Methoxsalen

Catalog No.S1952 Synonyms: Xanthotoxin, NCI-C55903

For research use only.

Methoxsalen (Xanthotoxin, NCI-C55903) is a naturally occurring photoactive substance found in the seeds of the Ammi majus (Umbelliferae) plant, used in the diagnosis and treatment of psoriasis; A CYP2A5/6 inhibitor.

Methoxsalen Chemical Structure

CAS No. 298-81-7

Selleck's Methoxsalen has been cited by 7 Publications

Purity & Quality Control

Choose Selective P450 (e.g. CYP17) Inhibitors

Other P450 (e.g. CYP17) Products

Biological Activity

Description Methoxsalen (Xanthotoxin, NCI-C55903) is a naturally occurring photoactive substance found in the seeds of the Ammi majus (Umbelliferae) plant, used in the diagnosis and treatment of psoriasis; A CYP2A5/6 inhibitor.
Targets
CYP2A5 [6] CYP2A6 [6]
In vitro

Methoxsalen inhibits CYP2A6 (Ki = 0.8 μM) with about 3.5- 94-fold greater potency than other P450s, except for CYP1A2 (Ki = 0.2 μM). Methoxsalen shows noncompetitive inhibition of nicotine metabolism, with an apparent Ki value of 0.1 μM in cDNA-expressing microsomes. [1] Methoxsalen is metabolized in human liver microsomes at the rate of 50-100 pmol/mg protein/min (approx. 30% of the activity in mouse liver microsomes). Methoxsalen is a very potent inhibitor of human cytochrome P450 2A6 (CYP2A6) and mouse Cyp2a-5-mediated coumarin 7-hydroxylation in vitro. [2]

In vivo Methoxsalen results in a significant decrease in the following factors: number and diameter of corpus lutei, Graafian follicles, diameter of granulosa cell layer and oocytes, number of primordial and primary and growing follicles, while the number of atretic follicle is increased. Methoxsalen also significantly reduces circulating estrogen levels in blood serum of oogenesis Balb/C mice. [3] Methoxsalen dose-dependently stimulates a sustained increase in short-circuit current in the mouse jejunum. Methoxsalen increases the open probability of the basolateral IK(Ca) channel of isolated crypts in the mouse jejunum. [4] Methoxsalen effectively reverses trimethyltin (TMT)-induced memory impairment on both Y-maze and passive avoidance tests in mice. Methoxsalen inhibits brain AchE activity. Methoxsalen significantly ameliorates the level of oxidative stress. [5]

Protocol (from reference)

Solubility (25°C)

In vitro

Chemical Information

Molecular Weight 216.19
Formula

C12H8O4

CAS No. 298-81-7
Storage 3 years -20°C powder
2 years -80°C in solvent
Smiles COC1=C2C(=CC3=C1OC=C3)C=CC(=O)O2

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

mg/kg g μL

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO % % Tween 80 % ddH2O
%DMSO %

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Molarity Calculator

Mass Concentration Volume Molecular Weight

Clinical Trial Information

NCT Number Recruitment Interventions Conditions Sponsor/Collaborators Start Date Phases
NCT04389281 Recruiting Combination Product: X-PACT Advanced Cancer Immunolight LLC December 8 2021 Phase 1

(data from https://clinicaltrials.gov, updated on 2022-08-01)

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

Tel: +1-832-582-8158 Ext:3
If you have any other enquiries, please leave a message.

* Indicates a Required Field

Please enter your name.
Please enter your email. Please enter a valid email address.
Please write something to us.
Tags: buy Methoxsalen | Methoxsalen ic50 | Methoxsalen price | Methoxsalen cost | Methoxsalen solubility dmso | Methoxsalen purchase | Methoxsalen manufacturer | Methoxsalen research buy | Methoxsalen order | Methoxsalen mouse | Methoxsalen chemical structure | Methoxsalen mw | Methoxsalen molecular weight | Methoxsalen datasheet | Methoxsalen supplier | Methoxsalen in vitro | Methoxsalen cell line | Methoxsalen concentration | Methoxsalen nmr