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1,5,5-Trimethylhydantoin (TMH)

Cat No.:V59147 Purity: ≥98%
1,5,5-Trimethylhydantoin (TMH) is a non-isotopic internal standard compound.
1,5,5-Trimethylhydantoin (TMH)
1,5,5-Trimethylhydantoin (TMH) Chemical Structure CAS No.: 6851-81-6
Product category: Others 12
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
1,5,5-Trimethylhydantoin (TMH) is a non-isotopic internal standard compound.
1,5,5-Trimethylhydantoin (TMH) is a hydantoin derivative with the molecular formula C₆H₁₀N₂O₂ and a molecular weight of 142.16 g/mol. It serves as a non-isotopic internal standard (IS) for analytical applications. The compound appears as a white to almost white powder or crystal with a melting point of 162-166°C. TMH exhibits various biological activities, including antimicrobial properties, and is used in research applications. It is not approved for human use and is intended for research purposes only.
Biological Activity I Assay Protocols (From Reference)
Targets
The biological targets of 1,5,5-Trimethylhydantoin are not well characterized in the available literature. It is classified as an "Others" target compound. As a hydantoin derivative, it may interact with enzymes or receptors involved in antimicrobial pathways. The compound's primary application is as a non-isotopic internal standard rather than as a pharmacologically active agent. Further research is needed to identify specific molecular targets and elucidate its mechanism of action.
ln Vitro
In vitro biological activity of 1,5,5-Trimethylhydantoin has been reported, particularly its antimicrobial properties. However, specific potency data such as MIC values against particular microbial strains are not detailed in the available sources. The compound's activity as a hydantoin derivative suggests potential interactions with biological macromolecules. Its primary in vitro application is as an analytical standard rather than as a bioactive compound in cellular assays. The antimicrobial compounds 1-chloro-3,5,5-trimethylhydantoin and 3-chloro-1,5,5-trimethylhydantoin have been synthesized and examined.
ln Vivo
Specific in vivo activity data for 1,5,5-Trimethylhydantoin are not available in the consulted sources. The compound is primarily used as an internal standard in analytical applications. No therapeutic or pharmacological in vivo studies have been reported. Its biological activities, including antimicrobial properties, have not been characterized in animal models. The compound is not intended for in vivo use and is strictly a research chemical for laboratory applications.
Enzyme Assay
No specific protocols for enzyme/receptor binding assays are available for 1,5,5-Trimethylhydantoin. As an analytical internal standard, it is typically used in chromatographic methods such as GC-MS or LC-MS for quantitative analysis of hydantoin derivatives or related compounds. Standard curves are prepared using known concentrations of TMH, and the compound is added to samples at a fixed concentration to correct for variations in injection volume and instrument response. Its physicochemical properties, including solubility in dimethylformamide, make it suitable for such applications.
Cell Assay
No specific cell-based assay protocols are available for 1,5,5-Trimethylhydantoin. The compound's primary use as a non-isotopic internal standard does not involve cellular assays. For antimicrobial testing, standard broth microdilution methods could be employed to determine MIC values against bacterial or fungal strains, but such data are not reported in the available sources. The compound is not typically used in mammalian cell-based assays due to its primary application as an analytical standard.
Animal Protocol
No specific in vivo animal experiment protocols are available for 1,5,5-Trimethylhydantoin. The compound is not used in pharmacological or toxicological studies in animals. Its application as an internal standard is limited to analytical chemistry. No pharmacokinetic or efficacy studies in animal models have been reported. The compound is intended for research use only and is not administered to animals for therapeutic purposes.
ADME/Pharmacokinetics
Specific pharmacokinetic data for 1,5,5-Trimethylhydantoin are not available in the consulted sources. As a small, polar molecule with a molecular weight of 142.16 g/mol, it would be expected to have good aqueous solubility and rapid renal excretion. However, no ADME studies have been reported. Its use as an internal standard suggests it is stable and detectable in biological matrices. The compound's physicochemical properties, including its melting point of 161-164°C and density of 1.2298 g/cm³, are well characterized.
Toxicity/Toxicokinetics
Toxicological data for 1,5,5-Trimethylhydantoin are not available in the consulted sources. As a hydantoin derivative, it may have low acute toxicity, but comprehensive toxicological studies have not been reported. The compound's primary use as an analytical standard does not require extensive toxicological characterization. However, standard laboratory safety precautions should be followed when handling the compound. It is not intended for human use and is for research purposes only.
References
[1]. Zi-Ao Huang, et al. Application of multisegment injection on quantification of creatinine and standard addition analysis of urinary 5-hydroxyindoleacetic acid simultaneously with creatinine normalization. Electrophoresis. 2020 Feb;41(3-4):183-193.
Additional Infomation
1,5,5-Trimethylhydantoin (TMH) is primarily used as a non-isotopic internal standard for analytical applications. It is a hydantoin derivative with antimicrobial properties and potential applications in drug development. The compound has a density of 1.2298 g/cm³ and is soluble in dimethylformamide. It is not approved for any therapeutic indication and is strictly a research chemical. The antimicrobial compounds derived from TMH have been synthesized and examined via joint experimental and computational studies.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C6H10N2O2
Molecular Weight
142.16
Exact Mass
142.074
CAS #
6851-81-6
PubChem CID
81295
Appearance
White to off-white solid powder
Density
1.117 g/cm3
Melting Point
161-164 °C(lit.)
Index of Refraction
1.463
LogP
0.213
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
2
Rotatable Bond Count
0
Heavy Atom Count
10
Complexity
198
Defined Atom Stereocenter Count
0
SMILES
O=C1C(C([H])([H])[H])(C([H])([H])[H])N(C([H])([H])[H])C(N1[H])=O
InChi Key
ZNYIPTYJBRGSSL-UHFFFAOYSA-N
InChi Code
InChI=1S/C6H10N2O2/c1-6(2)4(9)7-5(10)8(6)3/h1-3H3,(H,7,9,10)
Chemical Name
1,5,5-trimethylimidazolidine-2,4-dione
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

Note: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture.
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 (703.43 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (17.59 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 (17.59 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 (17.59 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 7.0343 mL 35.1716 mL 70.3433 mL
5 mM 1.4069 mL 7.0343 mL 14.0687 mL
10 mM 0.7034 mL 3.5172 mL 7.0343 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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