Pyropheophorbide-a
Based on 4 publication(s) in Google Scholar
Pyropheophorbide-a (Ppa) is a photosensitizer used in photodynamic therapy (PDT) for tumors. Pyropheophorbide-a exhibits phototoxic effects on tumor cells, such as cervical cancer cells, and also has anti-lipogenesis activity. Pyropheophorbide-a shows potential for research in the fields of cancer and age-related macular degeneration (AMD). Pyropheophorbide-a derivatives also demonstrate inhibitory activity against tumor cells.
For research use only. We do not sell to patients.
- Purity: 98.0%
- CAS No.: 24533-72-0
- Formula: C33H34N4O3
- Molecular Weight:534.65
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Storage:
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
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Publications Citing Use of MedChemExpress (MCE) Pyropheophorbide-a
More
Biological Activity
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| 4T1 | IC50 |
0.13 μM
Compound: PPA
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Phototoxicity against mouse 4T1 cells in presence of illumination by MTT assay
Phototoxicity against mouse 4T1 cells in presence of illumination by MTT assay
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[PMID: 33751980] |
Pyropheophorbide-a (2.5-10 mol/L, 8 days) exhibits anti-adipogenic activity in 3T3-L1 adipocytes[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:3T3-L1 adipocytes
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Concentration:2.5, 5, and 10 mol/L
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Incubation Time:8 days
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Result:showed dose-dependent reductions in lipid accumulations and reduced nuclear DAPI stains in differentiated 3 T3-L1 adipocytes.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:C57BL/6 mice model
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Dosage:1.25 or 2.5 mg/kg
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Administration:intravenous injections (i.v.), 6 h
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Result:Resulted in rapid shrinkage of tumors after irradiation. While tumors treated with the same amount of Ppa-only (no irradiation) showed a slow growth
| NCT Number | Sponsor | Condition | Start Date |
Phase
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|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 24533-72-0
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Appearance Solid
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Molecular Weight 534.65
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Formula C33H34N4O3
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Color Brown to black
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SMILES
CC1=C2C(N/C1=C\3)=C(CC2=O)C([C@H]4CCC(O)=O)=N/C([C@H]4C)=C\C5=C(C)C(C=C)=C(N5)/C=C6C(C)=C(CC)C3=N/6
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
Publications (4)
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Journal Impact Factor
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Most Recent
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Nat Commun
Engineering STING Nanoadjuvants for spatiotemporally-tailored innate immunity stimulation and cancer vaccination therapy. [Abstract]2025 Jul 1;16(1):5773. PMID: 40595553 -
J Nanobiotechnology
Mitochondrial-targeted photodynamic therapy combined with TGF-β inhibition potentiates anti-PD-1 therapy in pancreatic ductal adenocarcinoma. [Abstract]2025 Nov 27;23(1):748. PMID: 41310702 -
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Solvent & Solubility
DMSO : 12.5 mg/mL (23.38 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 1.25 mg/mL (2.34 mM); Clear solution
This protocol yields a clear solution of ≥ 1.25 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (12.5 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL. * In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
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Data Sheet (284 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[1]. Li W, et al. cRGD Peptide-Conjugated Pyropheophorbide-a Photosensitizers for Tumor Targeting in Photodynamic Therapy. Mol Pharm. 2018 Apr 2;15(4):1505-1514. [Content Brief]
[2]. Liu YH, et al. Anti-adipogenic activities of pheophorbide a and pyropheophorbide a isolated from wild bitter gourd (Momordica charantia L. var. abbreviata Seringe) in vitro. J Sci Food Agric. 2022 Nov;102(14):6771-6779. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 1.8704 mL | 9.3519 mL | 18.7038 mL | 46.7596 mL |
| 5 mM | 0.3741 mL | 1.8704 mL | 3.7408 mL | 9.3519 mL | |
| 10 mM | 0.1870 mL | 0.9352 mL | 1.8704 mL | 4.6760 mL | |
| 15 mM | 0.1247 mL | 0.6235 mL | 1.2469 mL | 3.1173 mL | |
| 20 mM | 0.0935 mL | 0.4676 mL | 0.9352 mL | 2.3380 mL |
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