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  • R8 peptide

R8 peptide

Not For Human Use, Lab Use Only.

Cat.#: 319616

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* Buy 1 get 1 free (?) What is TFA?

Special Price 101.70 USD

Availability: 5 working days
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Product Information

  • Product Name
    R8 peptide
  • Documents

    Batch to batch variation of the purity

  • Sequence Shortening
    H-RRRRRRRR-OH
  • Sequence
    H-Arg-Arg-Arg-Arg-Arg-Arg-Arg-Arg-OH
  • Length (aa)
    8
  • Peptide Purity (HPLC)
    99.96%
  • Molecular Formula
    C48H98N32O9
  • Molecular Weight
    1267.49
  • Source
    Synthetic
  • Form
    Powder
  • Description
    The R8 is one of the cell-penetrating peptides (CPPs).
  • Storage Guidelines
    Normally, this peptide will be delivered in lyophilized form and should be stored in a freezer at or below -20 °C. For more details, please refer to the manual: Handling and Storage of Synthetic Peptides
  • References
    • Patel SG, Sayers EJ, He L, et al. Cell-penetrating peptide sequence and modification dependent uptake and subcellular distribution of green florescent protein in different cell lines. Sci Rep. 2019;9(1):6298. Published 2019 Apr 18. doi:10.1038/s41598-019-42456-8
    • Li XY, Shi LX, Yao XM, et al. Functional vinorelbine plus schisandrin B liposomes destroying tumor metastasis in treatment of gastric cancer. Drug Dev Ind Pharm. 2021;47(1):100-112. doi:10.1080/03639045.2020.1862169
  • About TFA salt

    Trifluoroacetic acid (TFA) is a common counterion from the purification process using High-Performance Liquid Chromatography (HPLC). The presence of TFA can affect the peptide's net weight, appearance, and solubility.

    Impact on Net Weight: The TFA salt contributes to the total mass of the product. In most cases, the peptide content constitutes >80% of the total weight, with TFA accounting for the remainder.

    Solubility: TFA salts generally enhance the solubility of peptides in aqueous solutions.

    In Biological Assays: For most standard in vitro assays, the residual TFA levels do not cause interference. However, for highly sensitive cellular or biochemical studies, please be aware of its presence.

  • Molar Concentration Calculator

  • Dilution Calculator

  • Percent Concentration Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

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• Peptide Services: NovoPro's peptide synthesis services include standard chemical peptide synthesis, peptide modification, peptide libraries, and recombinant peptide expression.

• Standard Peptide Synthesis: NovoPro offers quality peptides at the most competitive prices in the industry, starting at $3.20 per amino acid. NovoPro provides PepBox – Automatic Quote Tool for online price calculation.

• Peptide Modifications: NovoPro offers a wide range of peptide modification services including isotope labeling (2H, 15N, and 13C), multiple disulfide bonds, multiple phosphorylations, KLH, BSA, ovalbumin, amidation, acetylation, biotin, FITC, etc.

Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"