For research use only.

Catalog No.S4251 Synonyms: ENT 38

Phenothiazine Chemical Structure

CAS No. 92-84-2

Phenothiazine (ENT 38) is a dopamine-2 (D2) receptor antagonist therefore decreases the effect of dopamine in the brain.

Purity & Quality Control

Choose Selective Dopamine Receptor Inhibitors

Biological Activity

Description Phenothiazine (ENT 38) is a dopamine-2 (D2) receptor antagonist therefore decreases the effect of dopamine in the brain.
D2 receptor [2]
In vitro

Phenothiazines mostly substitutes at position 10 with the dialkylaminoalkyl groups and additionally at position 2 with small groups exhibit valuable activities such as neuroleptic, antiemetic, antihistaminic, antipuritic, analgesic and antihelmintic. 2-trifluoromethyl-10-(4-aminobutyl)phenothiazine inhibits S. cerevisiae strains and T. mentagrophites with MIC of 0.4 μg/mL and 1.5 μg/mL, respectively. 10-carbamoylalkylphenothiazines shows significant activities against Gram-positive Bacillus subtilis with MIC’s in the range of 7.8 μg/mL–30 μg/mL. The tetracyclic phenothiazines (modified with the naphthoquinone ring) shows significant actibacterial activity against S. aureus with the MIC50 of 12.5 μg/mL. Phenothiazines with the butylene linker are more effective than with the propylene linker, the 2-chloro-10-chloroethylureidobutyl derivative giving GI50 of 1.4 μM and 1.6 μM against 4 leukemia cell lines and 7 colon cancer cell lines. 10-Amino(hydroxy)propylphenothiazines (5 μM) induces a marked G2/M phase of cell-cycle arrest followed by cell death in human transformed WI38VA cells after 2-day incubation. [1] Phenothiazine drugs undergo extensive metabolism in the body before being excreted, mainly ring hydroxylation, ring sulphoxidation, N-demethylation, N-oxidation, sulphate and glucuronide conjugation. Phenothiazines have considerably lower binding affinities to α2-adrenoceptors than to dopamine D2 receptors and al-adrenoceptors. [2] Phenothiazines have significant in vitro activity against susceptible, polydrug- and multidrug-resistant strains of M. tuberculosis, as well as enhancing the activity of some agents employed for first-line treatment. [3]


Solubility (25°C)

In vitro DMSO 40 mg/mL (200.73 mM)
Water Insoluble
Ethanol Insoluble

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 199.27


CAS No. 92-84-2
Storage powder
in solvent
Synonyms ENT 38
Smiles C1=CC=C2C(=C1)NC3=CC=CC=C3S2

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 ul Number of animals
Step 2: Enter the in vivo formulation ()
% DMSO % % Tween 80 % ddH2O

Bio Calculators

Molarity Calculator

Molarity Calculator

Calculate the mass, volume or concentration required for a solution. The Selleck molarity calculator is based on the following equation:

Mass (mg) = Concentration (mM) × Volume (mL) × Molecular Weight (g/mol)

  • Mass
    Molecular Weight

*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and SDS / COA (available on product pages).

Dilution Calculator

Dilution Calculator

Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:

Concentration (start) x Volume (start) = Concentration (final) x Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )

  • C1

* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / COA (available online).

The Serial Dilution Calculator Equation

  • Serial Dilutions

  • Computed Result

  • C1=C0/X C1: LOG(C1):
    C2=C1/X C2: LOG(C2):
    C3=C2/X C3: LOG(C3):
    C4=C3/X C4: LOG(C4):
    C5=C4/X C5: LOG(C5):
    C6=C5/X C6: LOG(C6):
    C7=C6/X C7: LOG(C7):
    C8=C7/X C8: LOG(C8):
Molecular Weight Calculator

Molecular Weight Calculator

Enter the chemical formula of a compound to calculate its molar mass and elemental composition:

Total Molecular Weight: g/mol

Tip: Chemical formula is case sensitive. C10H16N2O2 c10h16n2o2

Instructions to calculate molar mass (molecular weight) of a chemical compound:

To calculate molar mass of a chemical compound, please enter its chemical formula and click 'Calculate'.

Definitions of molecular mass, molecular weight, molar mass and molar weight:

Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.

Molarity Calculator

Mass Concentration Volume Molecular Weight

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

Dopamine Receptor Signaling Pathway Map

Related Dopamine Receptor Products

Tags: buy Phenothiazine | Phenothiazine ic50 | Phenothiazine price | Phenothiazine cost | Phenothiazine solubility dmso | Phenothiazine purchase | Phenothiazine manufacturer | Phenothiazine research buy | Phenothiazine order | Phenothiazine mouse | Phenothiazine chemical structure | Phenothiazine mw | Phenothiazine molecular weight | Phenothiazine datasheet | Phenothiazine supplier | Phenothiazine in vitro | Phenothiazine cell line | Phenothiazine concentration | Phenothiazine nmr
Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID