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5-Methoxy-2-benzimidazolethiol (2-mercapto-5-methoxybenzimidazole)

Cat No.:V66530 Purity: ≥98%
5-Methoxy-2-benzimidazolethiol is a benzimidazole.
5-Methoxy-2-benzimidazolethiol (2-mercapto-5-methoxybenzimidazole)
5-Methoxy-2-benzimidazolethiol (2-mercapto-5-methoxybenzimidazole) Chemical Structure CAS No.: 37052-78-1
Product category: Biochemical Assay Reagents
This product is for research use only, not for human use. We do not sell to patients.
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Other Forms of 5-Methoxy-2-benzimidazolethiol (2-mercapto-5-methoxybenzimidazole):

  • 5-Methoxy-2-benzimidazolethiol-d3
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Top Publications Citing lnvivochem Products
Product Description
5-Methoxy-2-benzimidazolethiol is a benzimidazole. The iodometric determination of 5-Methoxy-2-benzimidazolethiol in alkaline medium was studied.
5-Methoxy-2-benzimidazolethiol is a heterocyclic compound with the molecular formula C₈H₈N₂OS and a molecular weight of 180.23 g/mol. It is a benzimidazole derivative with a methoxy group at the 5-position and a thiol group at the 2-position. The compound is also known as 2-mercapto-5-methoxybenzimidazole. It is used as a building block in organic synthesis and as a research chemical. Benzimidazole derivatives are known for their diverse biological activities. It is intended for research use only.
Biological Activity I Assay Protocols (From Reference)
Targets
5-Methoxy-2-benzimidazolethiol does not have a defined biological target as a therapeutic agent. It is a chemical building block used in organic synthesis and as a research chemical. The compound may be used in the synthesis of various bioactive molecules, including pharmaceuticals. Its biological activity would be determined by the final molecules into which it is incorporated. It is not characterized for direct pharmacological effects.
ln Vitro
Specific in vitro activity data for 5-Methoxy-2-benzimidazolethiol as a pharmacological agent are not documented in the literature. It is primarily used as a chemical building block. The compound's derivatives, particularly benzimidazole-containing compounds, may exhibit various biological activities including antimicrobial, anticancer, and antiviral effects. However, the parent compound itself is not characterized for direct biological effects.
ln Vivo
5-Methoxy-2-benzimidazolethiol is not used for in vivo pharmacological activity assessment as a drug compound. Its primary application is as a chemical building block in organic synthesis. The compound is not intended to be administered to animals for pharmacological studies. Its derivatives, which are synthesized from this building block, may be evaluated in vivo depending on their therapeutic targets.
Enzyme Assay
As a chemical building block, 5-Methoxy-2-benzimidazolethiol is not typically used in enzyme/receptor binding assays. Its role is in the synthesis of compounds that may be evaluated in such assays. When used in research, it serves as a starting material for the preparation of various benzimidazole derivatives. Standard synthetic chemistry protocols are employed for its use.
Cell Assay
5-Methoxy-2-benzimidazolethiol is not used in cell-based assays as a test compound. Its primary application is as a chemical building block for the synthesis of more complex molecules. The compound's derivatives may be evaluated in cell-based assays for various biological activities, but the parent compound itself is not characterized for direct cellular effects.
Animal Protocol
5-Methoxy-2-benzimidazolethiol is not used in animal studies as a pharmacological agent. Its primary application is as a chemical building block in organic synthesis. The compound is not intended to be administered to animals for efficacy or safety evaluations. Its derivatives may be evaluated in animal models depending on their therapeutic targets.
ADME/Pharmacokinetics
5-Methoxy-2-benzimidazolethiol has a molecular weight of 180.23 g/mol and a molecular formula of C₈H₈N₂OS. It is also known as 2-mercapto-5-methoxybenzimidazole. The compound is used as a building block in organic synthesis and as a research chemical. It is typically stored under standard laboratory conditions.
Toxicity/Toxicokinetics
5-Methoxy-2-benzimidazolethiol is intended for research use only and is not approved for human therapeutic applications. As a chemical building block, comprehensive toxicological data are not available in the publicly accessible literature. Standard safety precautions should be observed when handling this compound, including the use of appropriate personal protective equipment. The compound should be handled in well-ventilated areas with proper waste disposal procedures.
References

[1]. Iodimetric Determination of 2-Benzimidazolethiols and 2-Benzothiazolethiols. Chem. Anal. (Warsaw), 49, 577 (2004).

Additional Infomation
5-Methoxy-2-benzimidazolethiol (2-mercapto-5-methoxybenzimidazole) (CAS#: 37052-78-1) has a molecular formula of C₈H₈N₂OS and a molecular weight of 180.23 g/mol. It is a benzimidazole derivative used as a building block in organic synthesis and as a research chemical. This compound is not a drug and has not undergone clinical trials.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C8H8N2OS
Molecular Weight
180.23
Exact Mass
180.035
CAS #
37052-78-1
Related CAS #
5-Methoxy-2-benzimidazolethiol-d3;1219804-80-4
PubChem CID
665603
Appearance
White to light yellow solid powder
Density
1.4±0.1 g/cm3
Boiling Point
309.4±44.0 °C at 760 mmHg
Melting Point
261-263 °C(lit.)
Flash Point
140.9±28.4 °C
Vapour Pressure
0.0±0.7 mmHg at 25°C
Index of Refraction
1.695
LogP
1.92
Hydrogen Bond Donor Count
2
Hydrogen Bond Acceptor Count
2
Rotatable Bond Count
1
Heavy Atom Count
12
Complexity
198
Defined Atom Stereocenter Count
0
SMILES
COC1=CC2=C(C=C1)NC(=S)N2
InChi Key
KOFBRZWVWJCLGM-UHFFFAOYSA-N
InChi Code
InChI=1S/C8H8N2OS/c1-11-5-2-3-6-7(4-5)10-8(12)9-6/h2-4H,1H3,(H2,9,10,12)
Chemical Name
5-methoxy-1,3-dihydrobenzimidazole-2-thione
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)
DMSO: 100 mg/mL (554.85 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (13.87 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (13.87 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
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.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (13.87 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 5.5485 mL 27.7423 mL 55.4847 mL
5 mM 1.1097 mL 5.5485 mL 11.0969 mL
10 mM 0.5548 mL 2.7742 mL 5.5485 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:
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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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