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2′,3′-Di-O-acetylguanosine

Cat No.:V53304 Purity: ≥98%
2′,3′-Di-O-acetylguanosine is a nucleoside analog.
2′,3′-Di-O-acetylguanosine
2′,3′-Di-O-acetylguanosine Chemical Structure CAS No.: 42167-65-7
Product category: Nucleoside Antimetabolite/Analog
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
2′,3′-Di-O-acetylguanosine is a nucleoside analog.
2',3'-Di-O-acetylguanosine is a chemically modified nucleoside analog. It is a derivative of the natural purine nucleoside, guanosine, where the 2' and 3' hydroxyl groups of the ribose sugar are protected by acetyl (Ac) groups. This protection is crucial in organic synthesis to prevent unwanted side reactions. The acetylation makes the molecule more lipophilic than guanosine. It has a molecular formula of C14H1₇N₅O₇ and a molecular weight of 367.31 g/mol. It serves as a valuable intermediate in the synthesis of various bioactive molecules.
Biological Activity I Assay Protocols (From Reference)
Targets
This compound is a synthetic intermediate and has no direct biological target. It is a precursor molecule for the synthesis of other nucleoside analogs that may have antiviral or anticancer activity.
ln Vitro
As a protected nucleoside, it does not have intrinsic bioactivity. However, as a precursor, it contributes to the synthesis of compounds that can inhibit cellular processes. For example, after deprotection and further modification, the resulting analogs can target viral DNA polymerases or other enzymes involved in nucleic acid metabolism.
ln Vivo
Specific in vivo activity is not applicable, as this is a synthetic building block. The in vivo activity would be associated with the final deprotected nucleoside analog drug. This compound is used to construct such potential drugs.
Enzyme Assay
As a synthetic intermediate, it is not evaluated in standard binding assays. Its identity and purity are confirmed using chemical analysis. An analytical assay to confirm its structure would be Nuclear Magnetic Resonance (NMR) spectroscopy (¹H and ¹3C) and Mass Spectrometry (MS) to verify its exact mass and structural integrity. High-Performance Liquid Chromatography (HPLC) is used to determine its purity (typically ≥98%).
Cell Assay
Cell-based assays are not performed with this protected nucleoside, as it is not a drug candidate. A standard protocol in medicinal chemistry would involve using it as a starting material. A chemist would deprotect the acetyl groups using a weak base (e.g., ammonia in methanol) to yield guanosine. The guanosine is then purified and used as a substrate to create more complex molecules. The final, fully deprotected molecule would then be tested in cell-based assays for antiviral or anticancer activity.
Animal Protocol
In vivo animal experimental protocols are not applicable. This compound is not intended to be administered to animals in its current form. If it were used to create a drug candidate, that candidate would then undergo standard animal testing for efficacy and safety.
ADME/Pharmacokinetics
No pharmacokinetic data is available, as it is not a drug. Its high lipophilicity due to the acetyl groups would likely lead to good passive diffusion across lipid membranes if it were administered, but it would also be rapidly hydrolyzed by esterases in the body.
Toxicity/Toxicokinetics
No toxicity information is available, as it is not a drug. Standard laboratory safety precautions for handling synthetic intermediates are sufficient. The compound is not for human or veterinary use.
References

[1]. Regioselective preparation of 2′, 3′-di-O-acylribonucleosides carrying lipophilic acyl groups through a lipase-catalysed alcoholysis. Biotechnology Letters volume 24, pages979–983 (2002).

Additional Infomation
This is a classic example of a "masked" or "protected" nucleoside. The acetyl (Ac) groups are a common orthogonal protecting group in organic chemistry, stable to acid but easily removed with base. This compound is a building block for the synthesis of more complex nucleoside analogs, including potential drug candidates. It is strictly a research chemical.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C14H17N5O7
Molecular Weight
367.31
Exact Mass
367.113
CAS #
42167-65-7
PubChem CID
135960421
Appearance
White to off-white solid powder
LogP
-1.3
Hydrogen Bond Donor Count
3
Hydrogen Bond Acceptor Count
9
Rotatable Bond Count
6
Heavy Atom Count
26
Complexity
641
Defined Atom Stereocenter Count
4
SMILES
CC(=O)O[C@@H]1[C@H](O[C@H]([C@@H]1OC(=O)C)N2C=NC3=C2N=C(NC3=O)N)CO
InChi Key
MESNVKGXLMWATF-QYVSTXNMSA-N
InChi Code
InChI=1S/C14H17N5O7/c1-5(21)24-9-7(3-20)26-13(10(9)25-6(2)22)19-4-16-8-11(19)17-14(15)18-12(8)23/h4,7,9-10,13,20H,3H2,1-2H3,(H3,15,17,18,23)/t7-,9-,10-,13-/m1/s1
Chemical Name
[(2R,3R,4R,5R)-4-acetyloxy-5-(2-amino-6-oxo-1H-purin-9-yl)-2-(hydroxymethyl)oxolan-3-yl] acetate
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 and light.
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 : 17.86 mg/mL (48.62 mM)
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 2.7225 mL 13.6125 mL 27.2250 mL
5 mM 0.5445 mL 2.7225 mL 5.4450 mL
10 mM 0.2722 mL 1.3612 mL 2.7225 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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