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Methdilazine

Cat No.:V44539 Purity: ≥98%
Methdilazine is an orally bioactive antibiotic (histamine antagonist).
Methdilazine
Methdilazine Chemical Structure CAS No.: 1982-37-2
Product category: New3
This product is for research use only, not for human use. We do not sell to patients.
Size Price
500mg
1g
Other Sizes

Other Forms of Methdilazine:

  • Methdilazine Hydrochloride
Official Supplier of:
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Top Publications Citing lnvivochem Products
Product Description
Methdilazine is an orally bioactive antibiotic (histamine antagonist). Methdilazine HCl can inhibit the activity of a variety of mycobacteria at both in vitro & in vivo levels. Its MIC is 5-15 μg/mL and can be used for research related to infectious diseases.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
Mediazine (about 0-20 μg/mL, 18 h) inhibits several mycobacteria, with MIC values ranging from 5 μg/mL to 15 μg/mL [1].
ln Vivo
Mediazine (ip, 10 μg/gm body weight/day, 6 weeks) exhibits antagonistic effects against mycobacteria in H37Rv-infected mice [1]. Mediizine (oral, 10 mg/kg daily for 28 days) enhances survival in mice infected with Mycobacterium tuberculosis (Mtb) H37Rv [2].
Cell Assay
Cell proliferation assay [1]
Cell Types: Mycobacteria: M. smegmatis 798/1546, M., fortuitum 1529, M. scrofulaceum 1323, M. gordonae 1324, M. rnarinum 50, M., flavescens 1541, M. terrae 1450, Mycobacterium tuberculosis, H37Ra 16, H37Rv 16, K1, K2, ICRC bacilli, "Skinnis" bacilli.
Tested Concentrations: Approximately 0-20 μg/mL
Incubation Duration: 18 hrs (hours)
Experimental Results: Inhibition of mycobacteria with MIC values ranging from 5 μg/mL to 15 μg/mL.
Animal Protocol
Animal/Disease Models: H37Rv infected mice [1]
Doses: 10 μg/gm body weight/day, 6 weeks
Route of Administration: intraperitoneal (ip) injection
Experimental Results: Demonstrated antimycobacterial activity against mycobacteria.

Animal/Disease Models: Swiss albino male mice infected with Mycobacterium tuberculosis (Mtb) H37Rv [2]
Doses: 10 mg/kg per day for 28 days
Route of Administration: Oral
Experimental Results: Survival time extended to 28 days, no signs of disease, The survival rate is 71.42%.
ADME/Pharmacokinetics
Absorption, Distribution and Excretion
Well absorbed in the digestive tract.
Toxicity/Toxicokinetics
Toxicity Summary
Methdilazine binds to the histamine H1 receptor. This blocks the action of endogenous histamine, which subsequently leads to temporary relief of the negative symptoms brought on by histamine.
References

[1]. Antimycobacterial activity of methdilazine (Md), an antimicrobic phenothiazine. APMIS. 1993 Jun;101(6):449-54.

[2]. Activity of the phenothiazine methdilazine alone or in combination with isoniazid or streptomycin against Mycobacterium tuberculosis in mice. J Med Microbiol. 2009 Dec;58(Pt 12):1667-1668.

Additional Infomation
Crystals. (NTP, 1992)
Methdilazine is a phenothiazine substituted on nitrogen by a (1-methylpyrrolidin-3-yl)methyl group; a first-generation antihistamine with anticholinergic properties. It has a role as a histamine antagonist, a cholinergic antagonist and an antipruritic drug. It is a member of phenothiazines and a N-alkylpyrrolidine.
Methdilazine is a phenothiazine compound with antihistaminic activity. It is used in the treatment of various dermatoses to relieve pruritus.
Methdilazine is only found in individuals that have used or taken this drug. It is a phenothiazine compound with antihistaminic activity. It is used in the treatment of various dermatoses to relieve pruritus.Methdilazine binds to the histamine H1 receptor. This blocks the action of endogenous histamine, which subsequently leads to temporary relief of the negative symptoms brought on by histamine.
See also: Methdilazine Hydrochloride (has salt form).
Drug Indication
Used for the symptomatic relief of hypersensitivity reactions and particularly for the control of pruritic skin disorders
Mechanism of Action
Methdilazine binds to the histamine H1 receptor. This blocks the action of endogenous histamine, which subsequently leads to temporary relief of the negative symptoms brought on by histamine.
Pharmacodynamics
In allergic reactions an allergen interacts with and cross-links surface IgE antibodies on mast cells and basophils. Once the mast cell-antibody-antigen complex is formed, a complex series of events occurs that eventually leads to cell-degranulation and the release of histamine (and other chemical mediators) from the mast cell or basophil. Once released, histamine can react with local or widespread tissues through histamine receptors. Histamine, acting on H1-receptors, produces pruritis, vasodilatation, hypotension, flushing, headache, tachycardia, and bronchoconstriction. Histamine also increases vascular permeability and potentiates pain. Methdilazine is a histamine H1 antagonist. It competes with histamine for the normal H1-receptor sites on effector cells of the gastrointestinal tract, blood vessels and respiratory tract. It provides effective, temporary relief of sneezing, watery and itchy eyes, and runny nose due to hay fever and other upper respiratory allergies.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C18H20N2S
Molecular Weight
296.4298
Exact Mass
296.135
CAS #
1982-37-2
Related CAS #
Methdilazine hydrochloride;1229-35-2
PubChem CID
14677
Appearance
Typically exists as solid at room temperature
Density
1.185 g/cm3
Boiling Point
430.4ºC at 760 mmHg
Melting Point
189 to 190 °F (NTP, 1992)
87-88 °C
87 - 88 °C
Flash Point
214.1ºC
LogP
4.243
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
3
Rotatable Bond Count
2
Heavy Atom Count
21
Complexity
339
Defined Atom Stereocenter Count
0
SMILES
CN1CCC(C1)CN2C3=CC=CC=C3SC4=CC=CC=C42
InChi Key
HTMIBDQKFHUPSX-UHFFFAOYSA-N
InChi Code
InChI=1S/C18H20N2S/c1-19-11-10-14(12-19)13-20-15-6-2-4-8-17(15)21-18-9-5-3-7-16(18)20/h2-9,14H,10-13H2,1H3
Chemical Name
10-[(1-methylpyrrolidin-3-yl)methyl]phenothiazine
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 3.3735 mL 16.8674 mL 33.7348 mL
5 mM 0.6747 mL 3.3735 mL 6.7470 mL
10 mM 0.3373 mL 1.6867 mL 3.3735 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or 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.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution 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 stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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