Fmoc-Val-Cit-PAB-PNP
Based on 1 Customer Validation
Fmoc-Val-Cit-PAB-PNP is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-Val-Cit-PAB-PNP has superior plasma stability comparable to that of non-cleavable linkers.
For research use only. We do not sell to patients.
- Purity: 99.60%
- CAS No.: 863971-53-3
- Formula: C40H42N6O10
- Molecular Weight:766.80
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Storage:
-20°C, stored under nitrogen
* In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)
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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
Biological Activity
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Protease Cleavable Linker |
Cleavable Linker |
Fmoc-Val-Cit-PAB-PNP contains peptide sequence degradable by a lysosome enzyme[1].
Cathepsin B in the lysosome cleaves the peptide bond between Cit-PAB of dipeptide linkers containing Valine (Val)-citrulline (Cit) and p-aminobenzylalcohol (PAB). When PAB and a drug are binded covalently with carbamate bonds, the drug can be released by hydrolysis after cleavage of the peptide bond between Cit-PAB. Antibody-drug conjugates (ADCs) has been developed using this mechanism[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Conjugation site plays an important role in determining VC-PABC linker stability in mouse plasma, and that the stability of the linker positively correlates with ADC cytotoxic potency both in vitro and in vivo[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Fmoc-V-Cit-PAB-PNP
Chemical Information
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CAS No. 863971-53-3
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Appearance Solid
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Molecular Weight 766.80
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Formula C40H42N6O10
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Color White to yellow
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SMILES
CC(C)[C@@H](C(N[C@@H](CCCNC(N)=O)C(NC1=CC=C(COC(OC2=CC=C([N+]([O-])=O)C=C2)=O)C=C1)=O)=O)NC(OCC3C4=C(C5=C3C=CC=C5)C=CC=C4)=O
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
-20°C, stored under nitrogen
* In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)
Solvent & Solubility
DMSO : ≥ 40 mg/mL (52.16 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
* "≥" means soluble, but saturation unknown.
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 (stored under nitrogen). 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 (stored under nitrogen). 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.
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 (stored under nitrogen)
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 (278 KB)
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SDS (394 KB)
- English - EN (394 KB)
- Français - FR (394 KB)
- Deutsch - DE (394 KB)
- Norwegian - NO (394 KB)
- Español - ES (394 KB)
- Swedish - SV (394 KB)
- Italian - IT (394 KB)
- Portuguese - PT (394 KB)
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Handling Instructions (2659 KB)
References
[1]. Dubowchik GM, et al. Cathepsin B-labile dipeptide linkers for lysosomal release of doxorubicin from internalizing immunoconjugates: model studies of enzymatic drug release and antigen-specific in vitro anticancer activity. Bioconjug Chem. 2002 Jul-Aug;13(4):855-69. [Content Brief]
[2]. Yoneda Y, et al. A cell-penetrating peptidic GRP78 ligand for tumor cell-specific prodrug therapy. Bioorg Med Chem Lett. 2008 Mar 1;18(5):1632-6. [Content Brief]
[3]. Dorywalska M, et al. Effect of attachment site on stability of cleavable antibody drug conjugates. Bioconjug Chem. 2015 Apr 15;26(4):650-9. [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 (stored under nitrogen). 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 | 1.3041 mL | 6.5206 mL | 13.0412 mL | 32.6030 mL |
| 5 mM | 0.2608 mL | 1.3041 mL | 2.6082 mL | 6.5206 mL | |
| 10 mM | 0.1304 mL | 0.6521 mL | 1.3041 mL | 3.2603 mL | |
| 15 mM | 0.0869 mL | 0.4347 mL | 0.8694 mL | 2.1735 mL | |
| 20 mM | 0.0652 mL | 0.3260 mL | 0.6521 mL | 1.6302 mL | |
| 25 mM | 0.0522 mL | 0.2608 mL | 0.5216 mL | 1.3041 mL | |
| 30 mM | 0.0435 mL | 0.2174 mL | 0.4347 mL | 1.0868 mL | |
| 40 mM | 0.0326 mL | 0.1630 mL | 0.3260 mL | 0.8151 mL | |
| 50 mM | 0.0261 mL | 0.1304 mL | 0.2608 mL | 0.6521 mL |
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