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7-Deazahypoxanthine

Cat No.:V65961 Purity: ≥98%
1,7-Dihydro-pyrrolo[2,3-d]pyrimidin-4-one is a biochemical compound that may be utilized as a biomaterial or organic/chemical reagent for biomedical research.
7-Deazahypoxanthine
7-Deazahypoxanthine Chemical Structure CAS No.: 3680-71-5
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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Product Description
1,7-Dihydro-pyrrolo[2,3-d]pyrimidin-4-one is a biochemical compound that may be utilized as a biomaterial or organic/chemical reagent for biomedical research.
7-Deazahypoxanthine (CAS 3680-71-5), also known as 3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one, is a purine analogue with molecular formula C6H5N3O and molecular weight 135.13. It appears as a white to light yellow to light orange powder to crystalline solid with a melting point of 345°C. This compound is a fragment molecule that can serve as an important scaffold for molecular linking, expansion, and modification in drug discovery. It is used as a pharmaceutical intermediate and methylated 7-deazahypoxanthines are used as regiochemical probes of xanthine oxidase.
Biological Activity I Assay Protocols (From Reference)
Targets
7-Deazahypoxanthine does not have a defined primary pharmacological target as it is a fragment molecule and pharmaceutical intermediate. As a purine analogue, it may interact with enzymes involved in purine metabolism such as xanthine oxidase, where methylated derivatives serve as regiochemical probes. The compound serves as a scaffold for designing novel drug candidates and is commonly used in drug discovery and drug synthesis research.
ln Vitro
utilized as pharmacological bridges. Methylated 7-Deazahypoxanthines act as xanthine oxidase regiochemical probes.
No direct in vitro pharmacological activity data are available for 7-Deazahypoxanthine as it is a synthetic intermediate and fragment molecule. In research settings, the compound is used as a biochemical reagent that can be used as a biological material or organic compound for life science related research. It is used as a pharmaceutical intermediate and its methylated derivatives serve as probes for xanthine oxidase.
ln Vivo
No specific in vivo pharmacological activity data have been documented for 7-Deazahypoxanthine as it is not a therapeutic agent. The compound is used in chemical synthesis and drug discovery research as a scaffold and intermediate. It is not administered directly to animals for pharmacological evaluation. Its derivatives may be evaluated in animal models depending on the therapeutic area of interest.
Enzyme Assay
For non-cellular assays, 7-Deazahypoxanthine is characterized by standard analytical techniques including HPLC, NMR, and mass spectrometry to confirm identity and purity. The compound can be evaluated as a substrate or inhibitor in enzymatic assays involving purine metabolism enzymes such as xanthine oxidase. Typical protocols involve dissolving the compound in appropriate solvents and analyzing by chromatographic methods. Purity is >98.0% by HPLC. The compound has an XLogP of -0.2, 2 hydrogen bond donors, and 2 hydrogen bond acceptors.
Cell Assay
For in vitro cell-based studies, 7-Deazahypoxanthine can be dissolved in DMSO or aqueous buffers and diluted in cell culture medium to appropriate concentrations. Cells are cultured under standard conditions and treated with the compound to assess effects on purine metabolism or cell proliferation. The compound may be used as a tool to study purine biosynthesis pathways. Appropriate controls should be included in the experimental design.
Animal Protocol
For in vivo animal studies, 7-Deazahypoxanthine can be formulated using standard injection vehicles. The compound powder should be stored at 0-10°C under inert gas, protected from light and moisture. Dosing solutions should be freshly prepared and administered according to specific protocols with appropriate control groups. Standard handling procedures for purine analogues should be followed.
ADME/Pharmacokinetics
7-Deazahypoxanthine has a molecular weight of 135.13 and molecular formula C6H5N3O. It has an XLogP of -0.2, 2 hydrogen bond donors, and 2 hydrogen bond acceptors, and 0 rotatable bonds. Storage: refrigerated (0-10°C) under inert gas, protected from light and moisture. The compound has a melting point of 345°C. Purity: >98.0% by HPLC. The compound has a Reaxys-RN of 607861 and MDL number MFCD08234923.
Toxicity/Toxicokinetics
7-Deazahypoxanthine is classified with GHS signal word Warning. Hazard statements: H315 (causes skin irritation), H319 (causes serious eye irritation). Precautionary statements: P264, P280, P302+P352, P337+P313, P305+P351+P338, P362+P364, P332+P313. RTECS#: UY9440000. The compound is for research use only and not for human consumption.
Additional Infomation
7-Deazahypoxanthine (CAS 3680-71-5) is also known as 4-hydroxypyrrolopyrimidine, 1,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one, and 3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one. It has a PubChem CID of 135408689 and MDL number MFCD08234923. The compound is used as a pharmaceutical intermediate and fragment scaffold for drug discovery. No clinical trials or therapeutic approvals exist for the parent compound.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C6H5N3O
Molecular Weight
135.12
Exact Mass
135.043
CAS #
3680-71-5
PubChem CID
135408689
Appearance
Off-white to light brown solid powder
Density
1.6±0.1 g/cm3
Boiling Point
473.1±18.0 °C at 760 mmHg
Melting Point
345-348ºC
Flash Point
239.9±21.2 °C
Vapour Pressure
0.0±1.2 mmHg at 25°C
Index of Refraction
1.784
LogP
-0.7
Hydrogen Bond Donor Count
2
Hydrogen Bond Acceptor Count
2
Rotatable Bond Count
0
Heavy Atom Count
10
Complexity
189
Defined Atom Stereocenter Count
0
SMILES
O=C1C2C([H])=C([H])N([H])C=2N=C([H])N1[H]
InChi Key
FBMZEITWVNHWJW-UHFFFAOYSA-N
InChi Code
InChI=1S/C6H5N3O/c10-6-4-1-2-7-5(4)8-3-9-6/h1-3H,(H2,7,8,9,10)
Chemical Name
3,7-dihydropyrrolo[2,3-d]pyrimidin-4-one
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 : 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 7.4008 mL 37.0041 mL 74.0083 mL
5 mM 1.4802 mL 7.4008 mL 14.8017 mL
10 mM 0.7401 mL 3.7004 mL 7.4008 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.
/

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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