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PhpC

Cat No.:V142661 Purity: ≥98%
PhpC is a G-quadruplex (G4) DNA/RNA disruptor.
PhpC
PhpC Chemical Structure Product category: G-quadruplex
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
Other Sizes
Official Supplier of:
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Product Description
PhpC is a G-quadruplex (G4)-DNA/RNA disruptor. PhpC disrupts the G4 structure of DNA and RNA and promotes G4 helicase activity. PhpC effectively enhances Taq polymerase activity. PhpC regulates the G-quadruplex (G4) both in vitro and intracellularly.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
PhpC enhances the reverse transcription of rMYC G4 RNA while significantly inhibiting the reverse transcription of rhTELO, r5YEY, and rTBA[3]. PhpC promotes the in vitro translation of G4 RNA[3]. PhpC inhibits the viability of HEK293FT cells with an IC50 value of 25.7 μM[3]. PhpC (5-20 μM; 24 h) induces an increase in the DNA damage marker γH2AX, indicating its ability to induce DNA damage[3]. PhpC (25-100 μM; 24 h) leads to a gradual increase in the transcription level of mature miR-3196 in A549 cells[4]. PhpC recognizes and binds to the region constituting the G4s (rG4)-3196 sequence, disrupting its native G4 conformation and thus causing a structural change[4]. In HeLa cells, immunofluorescence (IF) analysis showed that 100 µM PhpC significantly reduced G4 levels but had no effect on metabolic activity [5]. PhpC (90 µM, 48 h) significantly reduced the abundance of NRAS G4 in MCF7 cells [6]. PhpC (90 μM; 72 h) had no significant effect on LINC01589 and MELTF-AS1, but significantly reduced the expression of UXT-AS1 and NRAS in HT-29 cells [7]. PhpC regulates G4 distribution in a targeted manner, alters translational activity in astrocytes only, and upregulates 295 proteins that are major participants in RNA transcription [8].
Cell Assay
RT-PCR[4]
Cell Types: A549 cells
Tested Concentrations: 25 μM, 50 μM, 100 μM
Incubation Duration: 24 hours
Experimental Results: Effectively increased the level of miR-3196 in cells.
References

[1]. Identifying G-Quadruplex-DNA-Disrupting Small Molecules. J. Am. Chem. Soc. 143, 12567-12577 (2021).

[2]. Unveiling a Potent Small Molecule Disruptor for RNA G-Quadruplexes Tougher Than DNA G-Quadruplex Disruption. ACS Chem Biol. 2024 Sep 20;19(9):2032-2040.

[3]. Discovery of A G-Quadruplex Unwinder That Unleashes the Translation of G-Quadruplex-Containing mRNA without Inducing DNA Damage. Angew Chem Int Ed Engl. 2024 Sep 16;63(38):e202407353.

[4]. Cellular modulation of a G-quadruplex structure found in the lung cancer-related microRNA-3196. Int J Biol Macromol. 2025 Jul;318(Pt 4):145263.

[5]. UV-induced G4 DNA structures recruit ZRF1 which prevents UV-induced senescence. Nat. Commun. 14, 6705 (2023).

[6]. PhpC modulates G-quadruplex-RNA landscapes in human cells. Chem Commun (Camb). 2024 Jan 4;60(4):424-427.

[7]. Pharmacomodulation of G-quadruplexes in long non-coding RNAs dysregulated in colorectal cancer. BMC Biol. 2025 Aug 8;23(1):249.

[8]. Small molecule-based regulation of gene expression in human astrocytes switching on and off the G-quadruplex control systems. J Biol Chem. 2025 Jan;301(1):108040.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C18H20N4O4
Molecular Weight
356.38
Appearance
Light yellow to yellow solid
SMILES
NCCOC1=CC=CC(C2=CC3=CN(C(N=C3N2)=O)CC(OCC)=O)=C1
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: 请将本产品存放在密封且受保护的环境中(例如氮气下),避免暴露在潮湿和光照下。
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 (~280.60 mM; with sonication)
Solubility (In Vivo)
Solubility in Formulation 1: 2.5 mg/mL (7.01 mM) in 10% DMSO + 40% PEG300 + 5% Tween-80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), Suspended solution; Need ultrasonic.
For example, if 1 mL of working solution is to be prepared, you canAdd 100 μL of DMSO stock solution (25.0 mg/mL) to 400 μL of PEG300 and mix well; then add 50 μL of Tween-80 and mix well; finally add 450 μL of physiological saline and adjust the volume to 1 mL. Preparation of physiological saline: Dissolve 0.9 g of sodium chloride in double-distilled water and dilute to 100 mL to obtain clear physiological saline.
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 (7.01 mM) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), Suspended solution; Need ultrasonic.
For example, if 1 mL of working solution is to be prepared, you canAdd 100 μL of DMSO stock solution (25.0 mg/mL) to 900 μL of 20% SBE-β-CD saline and mix well. Preparation of 20% SBE-β-CD saline (4°C, store for one week): Dissolve 2 g of SBE-β-CD powder in 10 mL of saline until completely dissolved and clear.
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 (7.01 mM) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), Suspended solution; Need ultrasonic.
For example, if 1 mL of working solution is to be prepared, you canAdd 100 μL of DMSO stock solution (25.0 mg/mL) to 900 μL of corn oil and mix well.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.8060 mL 14.0300 mL 28.0599 mL
5 mM 0.5612 mL 2.8060 mL 5.6120 mL
10 mM 0.2806 mL 1.4030 mL 2.8060 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:

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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)
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  • 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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