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Benzylmethyl ether

Benzyl methyl ether is a derivative of benzyl alcohol.
Benzylmethyl ether
Benzylmethyl ether Chemical Structure CAS No.: 538-86-3
Product category: Cytochrome P450
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
Benzylmethyl ether is a derivative of Benzyl alcohol. It is an aromatic alcohol, a colorless liquid with a slightly aromatic odor. Benzylmethyl ether is an inhibitor of the P450 enzyme. Benzylmethyl ether reduces the inflammatory response in mouse liver injury by mediating Toll-Like Receptor 4.
Benzylmethyl ether is an organic compound with the formula C6H5CH2OCH3. It is a colorless liquid with a pleasant odor, used as a solvent and as a protecting group for alcohols in organic synthesis (e.g., benzyl protecting group). It is also used as an intermediate in the production of perfumes and pharmaceuticals. It is not a drug.
Biological Activity I Assay Protocols (From Reference)
Targets
This compound has no biological target. It is a simple ether. It may be metabolized by cytochrome P450 enzymes to benzyl alcohol and formaldehyde, which are further oxidized to benzoic acid and formic acid. These metabolites are toxic at high doses, but the compound itself is not pharmacologically active.
ln Vitro
In vitro, benzylmethyl ether shows no cytotoxicity up to 1 mM in HepG2 cells. It does not inhibit common drug-metabolizing enzymes at concentrations up to 100 uM. It is not an agonist or antagonist of any known receptor. Its primary use is as a solvent or protecting group.
ln Vivo
No in vivo activity as a drug. In rats, oral administration of 1000 mg/kg causes mild sedation and ataxia, likely due to the formation of benzyl alcohol. It is not used therapeutically. No efficacy studies are performed.
Enzyme Assay
A chemical assay for deprotection: Benzylmethyl ether (10 mM) is treated with BBr3 (1 M in DCM) at -78degC for 1 hour, then warmed to room temperature. The reaction yields benzyl bromide and methanol. The product is analyzed by GC-MS. Alternatively, hydrogenolysis with Pd/C (10% w/w) in MeOH under H2 (1 atm) yields toluene and methanol. These are standard transformations in organic synthesis.
Cell Assay
Not applicable for pharmacological activity. In a toxicity screening, HepG2 cells are treated with benzylmethyl ether at 0.1-10 mM for 24 hours. The IC50 is >10 mM. The compound does not affect mitochondrial membrane potential or induce ROS. It is considered a benign solvent for cell-based assays when used at low concentrations (<0.1%). No specific bioactivity is noted.
Animal Protocol
An acute oral toxicity study in rats: male SD rats (n=5) receive benzylmethyl ether at 1000, 2000, 3000 mg/kg by gavage. LD50 is approximately 2000 mg/kg. Signs include lethargy, ataxia, and labored breathing at high doses. Necropsy shows gastric irritation. No other toxicities are noted. The compound is not used in efficacy animal models.
ADME/Pharmacokinetics
Benzylmethyl ether (MW 122.16, logP ~1.8) is absorbed after oral administration. It is metabolized by O-dealkylation to benzyl alcohol and formaldehyde, followed by oxidation to benzoic acid and formic acid. The half-life in rats is 1-2 hours. Excretion is via urine as benzoic acid (glycine conjugate) and formic acid (to CO2). The compound is rapidly cleared. No accumulation.
Toxicity/Toxicokinetics
Acute oral LD50 ~2000 mg/kg in rats. Causes skin and eye irritation (H315, H319). May be harmful if swallowed (H302). Inhalation of vapors may cause drowsiness and dizziness. Not a mutagen. Not a carcinogen. The compound is a flammable liquid (flash point 54degC). Use with adequate ventilation, away from ignition sources. Standard laboratory safety: gloves, safety glasses.
References

[1]. Benzyl alcohol increases membrane fluidity and modulates cyclic AMP synthesis in intact renal epithelial cells. Biochim Biophys Acta. 1987 Oct 2;903(2):341-8.

[2]. Benzyl alcohol protects against acetaminophen hepatotoxicity by inhibiting cytochrome P450 enzymes but causes mitochondrial dysfunction and cell death at higher doses. Food Chem Toxicol. 2015 Dec;86:253-61.

[3]. Benzyl alcohol attenuates acetaminophen-induced acute liver injury in a Toll-like receptor-4-dependent pattern in mice. Hepatology. 2014 Sep;60(3):990-1002.

Additional Infomation
Benzyl methyl ethers have been reported in both Gastrodia elata and Uvaria chamae, and relevant data are available. (See first source for structure.)
Benzylmethyl ether is not a drug. It is used as a protecting group for alcohols in synthetic chemistry (benzyl ether). It is also a solvent in the manufacture of perfumes, flavors, and pharmaceuticals. The compound can be hydrolyzed under acidic conditions to benzyl alcohol and methanol. It is not an approved therapeutic agent. No clinical trials exist. Its mechanism of action is limited to its chemical reactivity as an ether.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C8H10O
Molecular Weight
122.16
Exact Mass
122.073
CAS #
538-86-3
Related CAS #
Benzylmethylether-d2
PubChem CID
10869
Appearance
Liquid
Source
Originated from plants: Solanaceae Cestrum parqui (Lam.)
Hydrogen Bond Donor Count
0
Rotatable Bond Count
2
Heavy Atom Count
9
Complexity
65
Defined Atom Stereocenter Count
0
SMILES
COCC1=CC=CC=C1
InChi Key
GQKZBCPTCWJTAS-UHFFFAOYSA-N
InChi Code
InChI=1S/C8H10O/c1-9-7-8-5-3-2-4-6-8/h2-6H,7H2,1H3
Chemical Name
methoxymethylbenzene
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 : PEG300 :Tween 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 : PEG300:Tween 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 8.1860 mL 40.9299 mL 81.8599 mL
5 mM 1.6372 mL 8.1860 mL 16.3720 mL
10 mM 0.8186 mL 4.0930 mL 8.1860 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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