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Home > Pharmaceutical Intermediates > Bulk Drug Intermediates > 2,6-Di-tert-butyl-4-methylphenol for Sale > P21 99%Freeze-dried powder In stock Minimum Order Hot Selling
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P21 99%Freeze-dried powder In stock Minimum Order Hot Selling

TDS 20 Inquiries

Unit Price: Get Latest Price
CAS No.:

128-37-0

Grade:

Pharmaceutical Grade

Content:

99%

Port:

TianJin

Brand:

Pharma;Conutrix

Packaging:

10 vials/box

Price valid (until):

2026-06-22

Company Type:
Trader
Location:
China
Qualification:
Main Products:

Retatrutide,Tirzepatide,Semaglutide,Cynomorium Songaricum Extract,Bull Penis Powder,Deer Penis Extract

  • Product Description

  • Seller Information

  • Inquiry History

  • Description


      Product Detail  


    Product Description

    P21 (also known as P021) is a synthetic mimetic short peptide of Ciliary Neurotrophic Factor (CNTF). It is derived from the core active tetrapeptide fragment of CNTF and optimized via adamantyl modification, with N-terminal acetylation and C-terminal amidation, which greatly enhances its anti-enzymatic degradation stability and blood-brain barrier permeability.
    Full-length CNTF protein carries a large molecular weight that prevents it from crossing the blood-brain barrier, and it tends to trigger side effects such as weight loss and immune stimulation. In contrast, P21 only retains the core bioactivities of neuroprotection and neurogenesis, eliminating the adverse reactions of the parent protein. It activates the JAK/STAT and PI3K/Akt signaling pathways, upregulates cerebral BDNF expression, and reduces the deposition of Aβ amyloid plaques and tau neurofibrillary tangles. It is applied to preclinical neuroscience research on Alzheimer’s disease, brain injury and cognitive aging. Meanwhile, it exerts antioxidant, anti-inflammatory and mitochondrial protective effects, and is also used in in vitro model experiments for studying cell apoptosis and organ injury repair.

    Full Name

    P21 Peptide / P021, CNTF-derived neurotrophic mimetic peptide

    Chinese Full Name: Neurotrophic Factor Mimetic Peptide P21 (P021)

    Amino Acid Sequence

    Single-letter code: Ac-DGGL (Adamantyl-Gly)-NH₂

    Three-letter code: Ac-Asp-Gly-Gly-Leu-(Adamantylglycine)-NH₂

    Simplified notation: Ac-DGGLA-NH₂ (A = Adamantylglycine)

    Molecular Formula

    C₂₇H₄₂N₆O₈

    Molecular Weight

    578.66 Da

    CAS Number

    1246751-68-7

    Appearance

    White or off-white lyophilized powder with excellent water solubility; forms a clear, colorless transparent liquid after reconstitution with sterile pure water or Bac Water.

    Purity (Tested by HPLC)

    Total purity ≥98.0% with a single dominant peak; impurities including free truncated peptides and deletion peptides ≤1.0%; 100% molecular weight matching verified by mass spectrometry.


      About us  


              Anhui Ruibang Trading Co., Ltd. was established with a clear mission: to simplify international trade for businesses of all sizes. We act as a bridge between manufacturers and global buyers, offering professional sourcing, quality inspection, order coordination, and logistics management.

             Our team brings years of experience in cross-border trade, supplier networks, and export documentation. We understand the challenges of international business — language barriers, quality control, shipping complexities — and we solve them with a client-first approach.
           At Ruibang Trading, we don’t just move goods; we build relationships. Whether you are looking for a reliable supplier, need help consolidating shipments, or want to expand your product line, we provide tailored solutions to meet your goals.
             Our Commitment: Integrity, efficiency, and transparency in every transaction.


       Why choose us  


          Our products are of reliable quality and sell well all over the world, with partners across many countries and regions. We have professional technical support and complete after-sales teams to promptly respond to all your inquiries and demands.

               We always strictly control product quality, adhere to honest business principles, and prioritize quality and service. With stable product strength and thoughtful services, we sincerely welcome global customers to negotiate cooperation and achieve win-win development together.

               We have been deeply engaged in the peptide industry for many years, serving as a source biotechnology factory integrating R&D, synthesis, production and sales.

              We strictly follow production and quality control standards, with the whole process adopting aseptic production and independent lyophilization and packaging. Our products feature stable appearance, good solubility and high activity retention.

              We support trial orders with small quantities, bulk orders and customized formulas, providing one-stop solutions for foreign trade supply and private customization needs.


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      Our Advantages

     


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      Packaging Process:  

     


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    Certificates
    • P21 99%Freeze-dried powder  In stock Minimum Order Hot Selling Certificates 1

    Basic Info
    Product Name:

    2,6-Di-tert-butyl-4-methylphenol

    Other Name:

    Phenol,2,6-bis(1,1-dimethylethyl)-4-methyl-;p-Cresol,2,6-di-tert-butyl-;2,6-Bis(1,1-dimethylethyl)-4-methylphenol;CAO 1;CAO 3;Dalpac;DBPC;Deenax;2,6-Di-tert-butyl-p-methylphenol;4-Hydroxy-3,5-di-tert-butyltoluene;Impruvol;Ionol;Ionole;4-Methyl-2,6-di-tert-butylphenol;Parabar 441;Sustane BHT;Tenamene 3;Topanol OC;Vianol;BHT;Butylated hydroxytoluene;Topanol O;Topanol;Dibunol;Nonox TBC;AO 4K;Dibutylated hydroxytoluene;Ionol 1;Buks;2,6-Di-tert-butylcresol;Stavox;Di-tert-Butyl-4-methylphenol;o-Di-tert-butyl-p-methylphenol;Di-tert-butyl-p-cresol;Antioxidant KB;2,6-Di-tert-butyl-p-cresol;Antioxidant 4K;Sumilizer BHT;Di-tert-butylcresol;Catalin CAO 3;Chemanox 11;Vanlube PCX;Vanlube PC;Advastab 401;2,6-Di-tert-butyl-p-cresole;Antioxidant 29;AO 29;Antioxidant 30;P 21;Antioxidant DBPC;Agidol;Alkofen BP;Kerabit;Agidol 1;AO 4;Vulkanox KB;2,6-Di-tert-butylmethylphenol;Nocrac 200;2,6-Di-tert-butyl-4-hydroxytoluene;2,6-Di-tert-butyl-4-methyl-1-hydroxybenzene;Ionol BHT;AOX 4;AOX 4K;Antioxidant 4;Tenox BHT;Topanol BHT;Swanox BHT;2,6-Di-tert-butyl-4-methylhydroxybenzene;Antioxidant 264;Vanox PC;Antage BHT;3,5-Di-tert-butyl-4-hydroxytoluene;Popol;Ralox BHT;Permanax BHT;Antioxidant MPJ;Topanol OL;Naugard BHT;2,6-Di-tert-butyl-p-cresol;BAT;Ultranox 226;Lubrizol 817;2,6-Di-tert-butyl-4-methylphenol;P 21 (phenol);T 501;Ionol 330;Yoshinox BHT;2,6-Bis(tert-butyl)-4-methylphenol;36631-28-4;42615-30-5;50356-19-9;50641-99-1;52683-46-2;53571-70-3;58500-82-6;83047-16-9;97123-41-6;102962-45-8;259752-53-9;290348-23-1;338986-13-3;1394965-02-6;1456709-94-6;1847425-90-4;2055662-96-7

    CAS No.:

    128-37-0

    UN No.:

    3077

    Molecular Formula:

    C15H24O

    InChIKeys:

    InChIKey=NLZUEZXRPGMBCV-UHFFFAOYSA-N

    Molecular Weight:

    220.35000

    Exact Mass:

    220.35

    EC Number:

    246-911-9

    HScode:

    2907199090

    Characteristics
    PSA:

    20.23000

    XLogP3:

    5.3

    Appearance:

    White crystals or crystalline powder

    Density:

    1.048 g/cm3 @ Temp: 20 °C

    Melting Point:

    70 °C

    Boiling Point:

    265 °C

    Flash Point:

    127ºC

    Refractive Index:

    1.4859

    Water Solubility:

    H2O: insoluble

    Storage Conditions:

    0-6ºC

    Vapor Pressure:

    <0.01 mm Hg ( 20 °C)

    Vapor Density:

    7.6 (vs air)

    Flammability characteristics:

    Class IIIB Combustible Liquid: Fl.P. at or above 200°F.

    Hazard Identification

    Classification of the substance or mixture

    Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1

    GHS label elements, including precautionary statements

    Pictogram(s)
    Signal word

    Warning

    Hazard statement(s)

    H410 Very toxic to aquatic life with long lasting effects

    Precautionary statement(s)
    Prevention

    P273 Avoid release to the environment.

    Response

    P391 Collect spillage.

    Storage

    none

    Disposal

    P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

    Other hazards which do not result in classification

    no data available

    Handling and Storage

    Precautions for safe handling

    NO open flames. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

    Conditions for safe storage, including any incompatibilities

    Separated from strong oxidants and strong bases. Well closed.Keep container tightly closed in a dry and well-ventilated place. Storage class (TRGS 510): Non Combustible Solids.

  • Seller Information
    Business Type:

    Trader

    Main Products:

    Retatrutide,Tirzepatide,Semaglutide,Cynomorium Songaricum Extract,Bull Penis Powder,Deer Penis Extract

    Location:

    Hefei, Provincia de Anhui

    Year of Establishment:

    2026

  • Inquiry History
    20 Inquiries
    Country Product Purchase Quantity Date Posted
    India

    butylated hydroxy toluene

    1500 KG May 12, 2026
    India

    Butyl hydroxy Toluene

    500.00 KG Feb 12, 2026
    Pakistan

    Butylated Hydroxytoluene

    5 KG Jan 5, 2026
    India

    4 Butylated tolune(BHT)

    10.00 KG Dec 19, 2025
    Pakistan

    bht

    20 KG May 19, 2025
    India

    Butylated hydroxytoluene

    20 MT Jan 4, 2025
    Egypt

    Butylated hydroxytoluene(BHT)

    1.00 TON Dec 25, 2024
    Mexico

    Butylated Hydroxytoluene

    1000 KG Sep 29, 2024
    United States

    Butylated hydroxytoluene

    5 MT Jun 26, 2024
    South Korea

    BUTYLATED HYDROXYTOLUENE

    1 20' Fcl Jun 5, 2024
    Pakistan

    Butylated Hydroxytoluene

    5000 KG Feb 5, 2024
    Morocco

    Inhibiteur Butylated hydroxytoluene (BHT)

    500 KG Sep 11, 2023
    United States

    P21

    10 PCS Mar 20, 2026
    Poland

    BHT (Butylated Hydroxytoluene)

    1000.00 KG Jan 21, 2026
    Germany

    Butylated Hydroxytoluene

    10 KG Nov 21, 2024
    Pakistan

    Butylated hydroxytoluene Food Grade best selling

    12 MT Nov 8, 2023
    United States

    Top Quality p21 Butylated Hydroxytoluene 99% white powder junjia

    1 MT Oct 20, 2023
    India

    2,6 Di Tert Butyl P-Cresol

    1 KG Sep 30, 2023
    United States

    Butylated Hydroxytoluene CAS NO. 128-37-0 99% powder

    5 MT Jun 26, 2024
    Hongkong, China

    Paraffin wax

    10 G Aug 5, 2025
    Post an enquiry for this product
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