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Azulene

Cat No.:V38670 Purity: ≥98%
Azulene (Cyclopentacycloheptene) is an enantiomer of naphthalene with high anti-HIV (Human Immunodeficiency Virus) activity.
Azulene
Azulene Chemical Structure CAS No.: 275-51-4
Product category: New2
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
100mg
Other Sizes
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Product Description
Azulene (Cyclopentacycloheptene) is an enantiomer of naphthalene with high anti-HIV (Human Immunodeficiency Virus) activity. Azulene is extracted from chamomile essential oil and is a scaffold in active molecular chemistry.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
Because it resembles a number of other bicyclic aromatic compounds that are frequently found in pharmaceuticals, the azulene ring is an intriguing scaffold in medicinal chemistry. The structural isomer of naphthalene, chamomilene, is a bicyclic aromatic hydrocarbon that is non-benzene and has a dipole moment because of two different rings: one with seven electrons deficient and the other with five electrons abundant [1].
ADME/Pharmacokinetics
Metabolism / Metabolites
PAH metabolism occurs in all tissues, usually by cytochrome P-450 and its associated enzymes. PAHs are metabolized into reactive intermediates, which include epoxide intermediates, dihydrodiols, phenols, quinones, and their various combinations. The phenols, quinones, and dihydrodiols can all be conjugated to glucuronides and sulfate esters; the quinones also form glutathione conjugates. (L10)
Toxicity/Toxicokinetics
Toxicity Summary
The ability of PAH's to bind to blood proteins such as albumin allows them to be transported throughout the body. Many PAH's induce the expression of cytochrome P450 enzymes, especially CYP1A1, CYP1A2, and CYP1B1, by binding to the aryl hydrocarbon receptor or glycine N-methyltransferase protein. These enzymes metabolize PAH's into their toxic intermediates. The reactive metabolites of PAHs (epoxide intermediates, dihydrodiols, phenols, quinones, and their various combinations) covalently bind to DNA and other cellular macromolecules, initiating mutagenesis and carcinogenesis. (L10, L23, A27, A32)
Toxicity Data
LD50: >4000 mg/kg (Oral, Rat) (L912)
LD50: 180 mg/kg (Intraperitoneal, Rat) (L912)
LD50: 520 mg/kg (Subcutaneous, Rat) (L912)
References

[1]. Azulene-based Compounds for Targeting Orexin Receptors. Eur J Med Chem. 2018 Sep 5;157:88-100.

[2]. Antiretroviral (HIV-1) Activity of Azulene Derivatives. Bioorg Med Chem. 2016 Apr 15;24(8):1653-7.

[3]. A new synthesis of substituted azulenes. Journal of the American Chemical Society, 111(1), 389-391.

Additional Infomation
Azulene is a mancude carbobicyclic parent consisting of a cycloheptatriene and cyclopentadiene rings. It has a role as a plant metabolite and a volatile oil component. It is an ortho-fused bicyclic arene, a member of azulenes and a mancude carbobicyclic parent.
Azulene has been reported in Achillea asiatica, Basella alba, and other organisms with data available.
Azulene is one of over 100 different polycyclic aromatic hydrocarbons (PAHs). PAHs are chemicals that are formed during the incomplete burning organic substances, such as fossil fuels. They are usually found as a mixture containing two or more of these compounds. (L10)
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C10H8
Molecular Weight
128.17
Exact Mass
128.062
CAS #
275-51-4
Related CAS #
82451-56-7
PubChem CID
9231
Appearance
Purple to blue solid powder
Density
1.0±0.1 g/cm3
Boiling Point
220.7±7.0 °C at 760 mmHg
Melting Point
98-100 °C(lit.)
Flash Point
76.7±8.9 °C
Vapour Pressure
0.2±0.2 mmHg at 25°C
Index of Refraction
1.632
LogP
3.45
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
0
Rotatable Bond Count
0
Heavy Atom Count
10
Complexity
94.6
Defined Atom Stereocenter Count
0
InChi Key
CUFNKYGDVFVPHO-UHFFFAOYSA-N
InChi Code
InChI=1S/C10H8/c1-2-5-9-7-4-8-10(9)6-3-1/h1-8H
Chemical Name
azulene
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 (~780.21 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (19.51 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 (19.51 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 (19.51 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 7.8021 mL 39.0107 mL 78.0214 mL
5 mM 1.5604 mL 7.8021 mL 15.6043 mL
10 mM 0.7802 mL 3.9011 mL 7.8021 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
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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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