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Diisohexyl phthalate

Cat No.:V40350 Purity: ≥98%
Diisohexyl phthalate is a class of dialkyl phthalates used as plasticizers.
Diisohexyl phthalate
Diisohexyl phthalate Chemical Structure CAS No.: 71850-09-4
Product category: New2
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
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500mg
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Product Description
Diisohexyl phthalate is a class of dialkyl phthalates used as plasticizers.
Diisohexyl phthalate is a class of dialkyl phthalate esters and a plasticizer. With a molecular weight of 334.45 g/mol and a molecular formula of C20H30O4, it is primarily used to enhance the flexibility and durability of plastics, particularly in the production of PVC products, adhesives, and coatings. Due to potential health and environmental concerns, its usage is regulated in certain regions.
Biological Activity I Assay Protocols (From Reference)
Targets
Diisohexyl phthalate does not have a specific biological target but is known to cause potential interference in analytical chromatographic analysis due to its retention time overlapping with other phthalates. As a plasticizer, it is an environmental contaminant that can leach from plastics. It is studied as an endocrine-disrupting chemical, but its mechanism of action is not fully characterized.
ln Vitro
In vitro, Diisohexyl phthalate is primarily studied for its potential as an analytical interferent in chromatographic analysis of other phthalates. It is not evaluated for traditional pharmacological activity. Its biological effects are studied in the context of environmental toxicology, where it is investigated as a potential endocrine disruptor. It serves as a reference standard for environmental monitoring.
ln Vivo
Diisohexyl phthalate is not a therapeutic agent and has no known in vivo therapeutic activity. It is an environmental contaminant that is studied in vivo for its toxicological effects. Animal studies are typically conducted to assess its potential for endocrine disruption, reproductive toxicity, and carcinogenicity. Its presence in the environment and human exposure are key concerns.
Enzyme Assay
In vitro assays for Diisohexyl phthalate are primarily analytical, using GC-MS or LC-MS to detect and quantify the compound in environmental and biological samples. It is also used as a standard in these analyses. In toxicological studies, in vitro assays can be used to assess its effects on hormone receptor signaling, using cell-based reporter gene assays for estrogen and androgen receptors.
Cell Assay
For in vitro cell-based assays, cell lines expressing hormone receptors (e.g., estrogen receptor, androgen receptor) are cultured and treated with Diisohexyl phthalate. Its potential for endocrine disruption is assessed by measuring changes in receptor-mediated gene expression using reporter gene assays. Cell viability and proliferation are assessed using standard assays like MTT.
Animal Protocol
In vivo animal studies with Diisohexyl phthalate are typically toxicological and conducted to assess its potential for endocrine disruption and reproductive toxicity. Rodents are administered the compound orally or via diet. Parameters such as reproductive organ weights, hormone levels, and fertility are measured. Histopathological examination of tissues is performed to assess organ toxicity.
ADME/Pharmacokinetics
Metabolism / Metabolites
Phthalate esters are first hydrolyzed to form their monoester derivatives. After formation, these monoester derivatives can be further hydrolyzed in the body to form phthalic acid or conjugate with glucuronic acid, both of which can be excreted. The terminal or penultimate carbon atom of the monoester can also be oxidized to form an alcohol, which can be directly excreted or first oxidized to form an aldehyde, ketone, or carboxylic acid. Both the monoester and its oxidized metabolites are excreted in urine and feces. (A2884)
Diisohexyl phthalate (CAS: 71850-09-4) has a molecular weight of 334.45 g/mol and a molecular formula of C20H30O4. It is also known as Bis(4-methylpentyl)phthalate. It is a colorless to pale yellow oily liquid that is insoluble in water but soluble in organic solvents. It is typically stored at room temperature, protected from light. It is a standard substance for analytical applications.
Toxicity/Toxicokinetics
Toxicity Summary
Phthalate esters are endocrine disruptors. They reduce testosterone production in the fetal testes and decrease the expression of steroid-producing genes by reducing mRNA expression. Some phthalates have also been shown to reduce the expression of insulin-like peptide-3 (insl3), an important hormone secreted by interstitial cells in the testes and crucial for the development of the gubernaculum testis. Animal studies have shown that these effects can disrupt reproductive development and may lead to various malformations in affected offspring. (A2883)
Diisohexyl phthalate is classified as a potential endocrine disruptor, and its use is regulated in certain regions. Studies have shown that phthalates can cause reproductive and developmental toxicity in animal models. The compound is not intended for human therapeutic use. Standard laboratory safety precautions should be followed, especially when handling it as a neat compound.
Additional Infomation
Diisohexyl phthalate is a phthalate ester. Phthalate esters are esters of phthalic acid, primarily used as plasticizers, mainly for softening polyvinyl chloride (PVC). They are found in a wide variety of products, including adhesives, building materials, personal care products, detergents and surfactants, packaging materials, children's toys, paints, pharmaceuticals, food, and textiles. Phthalate esters have endocrine-disrupting effects and are therefore harmful. Due to these health concerns, the United States and the European Union are phasing out phthalate esters in many products. (L1903)
Diisohexyl phthalate is a dialkyl phthalate ester and a plasticizer used to enhance the flexibility of plastics. It is also an environmental contaminant and a potential endocrine disruptor. It is not an approved drug and is intended for research and analytical use only, particularly as a reference standard for environmental monitoring.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C20H30O4
Molecular Weight
334.4498
Exact Mass
530.107
CAS #
71850-09-4
PubChem CID
8970
Appearance
Colorless to light yellow liquid
Density
1.5±0.1 g/cm3
Boiling Point
720.0±60.0 °C at 760 mmHg
Flash Point
277.8±34.9 °C
Vapour Pressure
0.0±2.2 mmHg at 25°C
Index of Refraction
1.676
LogP
6.71
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
4
Rotatable Bond Count
12
Heavy Atom Count
24
Complexity
340
Defined Atom Stereocenter Count
0
SMILES
C(OCCCC(C)C)(=O)C1=CC=CC=C1C(OCCCC(C)C)=O
InChi Key
ALEROMXYYSQFLX-UHFFFAOYSA-N
InChi Code
InChI=1S/C20H30O4/c1-15(2)9-7-13-23-19(21)17-11-5-6-12-18(17)20(22)24-14-8-10-16(3)4/h5-6,11-12,15-16H,7-10,13-14H2,1-4H3
Chemical Name
bis(4-methylpentyl) benzene-1,2-dicarboxylate
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: This product requires protection from light (avoid light exposure) during transportation and storage.
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 2.9900 mL 14.9499 mL 29.8998 mL
5 mM 0.5980 mL 2.9900 mL 5.9800 mL
10 mM 0.2990 mL 1.4950 mL 2.9900 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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