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MC903 (Calcipotriene) Vitamin D3 Analogue

Name: MC903 (Calcipotriene)
Brand: Selleck Chemicals
SKU: S3739
Availability: InStock
Rating: 5 (8 reviews)

Cat.No.S3739

Calcipotriene (MC903) is a synthetic derivative of calcitriol, a form of vitamin D. It can induce differentiation and suppresses proliferation of keratinocytes, reversing abnormal keratinocyte changes in psoriasis, and lead to normalization of epidermal growth. Calcipotriol is a synthetic VitD3 analogue with a high affinity for the vitamin D receptor.Solutions are unstable and should be fresh-prepared.

Chemical Structure

Molecular Weight: 412.60

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Quality Control

Batch: Purity: >97%

Cited in Nature Medicine for its top-tier quality
COA
NMR
Datasheet
SDS/MSDS

Cited in Nature Medicine for its top-tier quality
COA
NMR
Datasheet
SDS/MSDS

Cited in Nature Medicine for its top-tier quality
COA
Datasheet
SDS/MSDS

Cited in Nature Medicine for its top-tier quality
COA
NMR
Datasheet
SDS/MSDS

Related Targets	Dehydrogenase HSP Transferase P450 (e.g. CYP17) PDE phosphatase PPAR Carbohydrate Metabolism Mitochondrial Metabolism Casein Kinase
Other Vitamin Inhibitors	Trolox Nicotinic Acid Sodium ascorbate D-Pantethine Amprolium HCl Thiamine pyrophosphate hydrochloride D-Pantothenate Sodium Calcium D-Panthotenate Tocofersolan Ergosterol

Solubility

In vitro
Batch:

DMSO : 83 mg/mL (201.16 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 83 mg/mL

Water : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	4.350mg/ml (10.54mM)	Taking the 1 mL working solution as an example, add 50 μL of 87 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	1.000mg/ml (2.42mM)	Taking the 1 mL working solution as an example, add 50 μL of 20 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.

In vivo Formulation Calculator (Clear solution)

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

Dosage: mg/kg

Average weight of animals: g

Dosing volume per animal: μL

Number of animals:

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.

Chemical Information, Storage & Stability

Molecular Weight	412.60	Formula	C₂₇H₄₀O₃	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	112965-21-6	Download SDF		Storage of Stock Solutions	Solutions are unstable. Prepare fresh or purchase small, pre-packaged sizes. Repackage upon receipt.
Synonyms	Calcipotriol			SMILES	CC(C=CC(C1CC1)O)C2CCC3C2(CCCC3=CC=C4CC(CC(C4=C)O)O)C

Read more about storage stability CAS number SMILES

Mechanism of Action

In vitro	Calcipotriene enhances IL-10 secretion in psoriatic skin and in human T cells, induces secretion of type 2 cytokines by T cells and, significantly modulates the differentiation of DCs and T cells.
In vivo	Calcipotriol suppresses skin cancer development in mice in a TSLP-dependent manner. Calcipotriol is a well-tolerated topical medication for psoriasis. The low concentration of calcipotriol in the clinically available formulation (0.005% ointment) dampens its effect against skin cancer development in mice.
References	[1] https://pubmed.ncbi.nlm.nih.gov/26794805/ [2] https://pubmed.ncbi.nlm.nih.gov/27869649/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2026-06-03)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT07352566	NOT_YET_RECRUITING	Psoriasis; Atopic Dermatitis	University of California, San Francisco	2026-08-01	PHASE4
NCT03370406	RECRUITING	Carcinoma, Squamous Cell	Melissa Pugliano-Mauro	2018-08-03	PHASE1
NCT06851507	RECRUITING	Multiple Actinic Keratoses	M.D. Anderson Cancer Center	2025-10-06	PHASE3
NCT05381597	RECRUITING	Superficial Basal Cell Carcinoma; Squamous Cell Carcinoma in Situ	Boston University	2022-10-15	PHASE2; PHASE3
NCT05699603	ACTIVE_NOT_RECRUITING	Actinic Keratosis	University of Arizona	2024-07-02	PHASE2
NCT06203470	Not yet recruiting	Psoriasis Vulgaris	Assiut University	2024-06	Phase 4

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