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Valganciclovir HCl

Alias: RS 079070-194; RO 107-9070/194; RS-79070-194; RS-079070-194; ganciclovir L-valyl ester; Valganciclovir HCl; Cymeval; Valcyt; Valixa; Darilin; Rovalcyte; Patheon
Cat No.:V2459 Purity: ≥98%
Valganciclovir HCl is the L-valyl ester prodrug of ganciclovir which is an antiviral drug used to treat cytomegalovirus infections.
Valganciclovir HCl
Valganciclovir HCl Chemical Structure CAS No.: 175865-59-5
Product category: CMV
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
50mg
100mg
250mg
500mg
1g
Other Sizes

Other Forms of Valganciclovir HCl:

  • Valganciclovir
  • Valganciclovir-d8 hydrochloride (Valganciclovir-d8 hydrochloride)
Official Supplier of:
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

Valganciclovir HCl is the L-valyl ester prodrug of ganciclovir which is an antiviral drug used to treat cytomegalovirus infections. Valganciclovir is an antiviral medication used to treat cytomegalovirus infections. Valganciclovir hydrochloride is a hydrochloride salt of the L-valyl ester of ganciclovir that exists as a mixture of two diastereomers. After administration, these diastereomers are rapidly converted to ganciclovir by hepatic and intestinal esterases. In cytomegalovirus (CMV)-infected cells, ganciclovir is initially phosphorylated to the monophosphate form by viral protein kinase, then it is further phosphorylated via cellular kinases to produce the triphosphate form. This triphosphate form is slowly metabolized intracellularly. The phosphorylation is dependent upon the viral kinase and occurs preferentially in virus-infected cells.

Biological Activity I Assay Protocols (From Reference)
ln Vitro
Valganciclovir hydrochloride is a hydrochloride salt of the L-valyl ester of ganciclovir that exists as a mixture of two diastereomers. After administration, these diastereomers are rapidly converted to ganciclovir by hepatic and intestinal esterases. In cytomegalovirus (CMV)-infected cells, ganciclovir is initially phosphorylated to the monophosphate form by viral protein kinase, then it is further phosphorylated via cellular kinases to produce the triphosphate form. This triphosphate form is slowly metabolized intracellularly. The phosphorylation is dependent upon the viral kinase and occurs preferentially in virus-infected cells. The virustatic activity of ganciclovir is due to the inhibition of viral DNA synthesis by ganciclovir triphosphate. Ganciclovir triphosphate is incorporated into the DNA strand replacing many of the adenosine bases. This results in the prevention of DNA synthesis, as phosphodiester bridges can longer to be built, destabilizing the strand. Ganciclovir inhibits viral DNA polymerases more effectively than it does cellular polymerase, and chain elongation resumes when ganciclovir is removed.
ln Vivo
After oral administration, intestinal and hepatic esterases hydrolyze both diastereomers to ganciclovir, which inhibits replication of the human cytomegalovirus. Valganciclovir is well absorbed from the gastrointestinal tract and the absolute bioavailability from valganciclovir tablets (following administration with food) is approximately 60%.
Animal Protocol
NA
NA
References
J Pharm Sci.2000 Jun;89(6):781-9;Drugs.2005;65(6):859-78.
Additional Infomation
 
Valganciclovir hydrochloride is an antiviral prescription medicine approved by the U.S. Food and Drug Administration (FDA) for the treatment of cytomegalovirus retinitis (CMV retinitis) in adults with AIDS. Valganciclovir hydrochloride is also FDA-approved for the prevention of CMV disease in recipients of organ transplants who are at risk for CMV diseases.
CMV diseases, including CMV retinitis, can be opportunistic infections(OIs) of HIV.
Valganciclovir Hydrochloride is a hydrochloride salt form of valganciclovir, a prodrug form of ganciclovir, a nucleoside analog of 2'-deoxyguanosine, with antiviral activity. After phosphorylation, valganciclovir is incorporated into DNA, resulting in inhibition of viral DNA polymerase, and viral replication.
A ganciclovir prodrug and antiviral agent that is used to treat CYTOMEGALOVIRUS RETINITIS in patients with AIDS, and for the prevention of CYTOMEGALOVIRUS INFECTIONS in organ transplant recipients who have received an organ from a CMV-positive donor.
See also: Valganciclovir (is salt form of).
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C14H22N6O5.HCL
Molecular Weight
390.825
Exact Mass
390.141
Elemental Analysis
C, 43.03; H, 5.93; Cl, 9.07; N, 21.50; O, 20.47
CAS #
175865-59-5
Related CAS #
Valganciclovir;175865-60-8;Valganciclovir-d8 hydrochloride;1132088-63-1
PubChem CID
135413534
Appearance
White to light yellow solid powder
Boiling Point
629.1ºC at 760 mmHg
Vapour Pressure
1.08E-16mmHg at 25°C
LogP
0.646
Hydrogen Bond Donor Count
5
Hydrogen Bond Acceptor Count
8
Rotatable Bond Count
9
Heavy Atom Count
26
Complexity
528
Defined Atom Stereocenter Count
1
SMILES
Cl[H].O(C([H])([H])N1C([H])=NC2C(N([H])C(N([H])[H])=NC1=2)=O)C([H])(C([H])([H])O[H])C([H])([H])OC([C@]([H])(C([H])(C([H])([H])[H])C([H])([H])[H])N([H])[H])=O
InChi Key
ZORWARFPXPVJLW-MTFPJWTKSA-N
InChi Code
InChI=1S/C14H22N6O5.ClH/c1-7(2)9(15)13(23)24-4-8(3-21)25-6-20-5-17-10-11(20)18-14(16)19-12(10)22;/h5,7-9,21H,3-4,6,15H2,1-2H3,(H3,16,18,19,22);1H/t8?,9-;/m0./s1
Chemical Name
[2-[(2-amino-6-oxo-3H-purin-9-yl)methoxy]-3-hydroxypropyl] (2S)-2-amino-3-methylbutanoate hydrochloride
Synonyms
RS 079070-194; RO 107-9070/194; RS-79070-194; RS-079070-194; ganciclovir L-valyl ester; Valganciclovir HCl; Cymeval; Valcyt; Valixa; Darilin; Rovalcyte; Patheon
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, avoid exposure to moisture.
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: 78 mg/mL (199.6 mM)
Water:78 mg/mL (199.6 mM)
Ethanol:<1 mg/mL
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (6.40 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 (6.40 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 (6.40 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.


Solubility in Formulation 4: 100 mg/mL (255.87 mM) in PBS (add these co-solvents sequentially from left to right, and one by one), clear solution; with ultrasonication.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.5587 mL 12.7933 mL 25.5866 mL
5 mM 0.5117 mL 2.5587 mL 5.1173 mL
10 mM 0.2559 mL 1.2793 mL 2.5587 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:
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  • 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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