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Home > Biochemical Engineering > Polypeptide > Melatonin for Sale > Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr
Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr buy - large image1
Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr buy - image1
Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr buy - image2
Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr buy - image3
Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr buy - image4
Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr buy - image5
Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr buy - image6

Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr

TDS 27 Inquiries

Unit Price:

$50/G FOB

Get Latest Price
CAS No.:

73-31-4

Grade:

Pharmaceutical Grade

Content:

99%

Port:

guangzhou

Brand:

HKX

Packaging:

10mg

Price valid (until):

2026-12-31

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

Tirzepatide,Semaglutide,Retatrutide,MOTS-C,GHK-CU,MT-2

  • Product Description

  • Seller Information

  • Inquiry History

  • Description


      Product Detail  






    Please contact me :Anna
    Whatsapp:+852 56821040
    Email:Annahkx@outlook.com

    1.   We supply high-purity research-grade lyophilized peptide powder peptide, available in lyophilized powder form in sterile vials. All batches are HPLC-tested to ensure purity ≥99%。
    Items Specifications
    Product Name Melatonin
    CAS No. 73-31-4
    Appearance White Lyophilized Powder
    Molecular Weight 232.28 g/mol
    Purity ≥99% 
    Storage Store at -20°C

    Mechanism of Action


    1.Regulation of circadian rhythm (core function)

    Melatonin acts as the body’s “biological clock signaling molecule”:

    ·Increases secretion at night (darkness signal)

    ·Inhibits wake-promoting pathways

    ·Regulates the sleep–wake cycle

    👉 Simple understanding:

    “A signal that tells the body it is time to sleep”


    2.Promotion of sleep initiation

    ·Reduces sleep onset latency

    ·Enhances sleepiness

    ·Improves overall sleep quality


    Acts via: MT1 / MT2 receptors (melatonin receptors)


    3.Antioxidant and cellular protection

    Melatonin is also a potent antioxidant:

    ·Scavenges free radicals (ROS)

    ·Protects mitochondrial function

    ·Reduces oxidative stress damage

    👉 Key feature:
    Can cross the blood-brain barrier (BBB)


    4.Neuro and immune modulation

    ·Regulates neurotransmitter balance (e.g., GABA system)

    ·Supports immune function

    ·Modulates inflammatory responses


    Shop Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr-Detailed Image 1 Shop Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr-Detailed Image 2 Shop Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr-Detailed Image 3 Shop Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr-Detailed Image 4 Shop Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr-Detailed Image 5 Shop Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr-Detailed Image 6


    Q&A


    Q: When can I receive the package?

    A: It will be shipped as soon as possible after payment, and the shipping time is generally 7 to 15 days.

    Q: What is the minimum amount I can order?

    A: The minimum quantity we can order is 1 box, which contains 10 vials.

    Q:How about the price? Can you make it cheaper?

    A:We always take the customer's benefit as the top priority. Price is negotiable under different conditions, we are assuring you to get the most competitive price.

    Q: How do i keep the peptides when i receive it ?

    A: Peptides in the form of lyophilized powder can be transported at room temperature by vacuum packaging, while polypeptides in the dissolved state need to be refrigerated at 2°C - 8°C. For long-term storage, peptides should be stored in the form of lyophilized powder store at -20°C or -80°C in a sealed container with desiccant, which can avoid the degradation of peptides to the greatest extent.


    Company Profile

         

    HKX is a reliable manufacturer and exporter of peptide raw materials.


    We have strong R&D capabilities and advanced production facilities. Our products cover various synthetic peptides and related raw materials, which are widely used in scientific research and pharmaceutical development. Every batch of goods undergoes rigorous laboratory testing to meet international quality standards.


    We have years of international trade experience and a complete logistics system. Neutral packaging is used for all goods to comply with international shipping regulations. We provide flexible order solutions for customers, from small trial orders to large bulk purchases.


    Sticking to the philosophy of Quality Priority and Customer Oriented, we sincerely welcome customers from all over the world to negotiate business and create win-win cooperation.

    Shop HIGH-Quality Peptides Lyophilized Powder Tirzepatide Fitness and Weight Loss-Detailed Image 9 Shop HIGH-Quality Peptides Lyophilized Powder Tirzepatide Fitness and Weight Loss-Detailed Image 10


    Why Choose Us

    ·Ultra-High Purity Each batch is synthesized and purified to >99% purity (HPLC), ensuring reliable and reproducible results in sensitive experiments.

    ·Accurate Dosing & Consistency Our peptides are precisely weighed and vacuum-sealed under sterile conditions. Batch-to-batch consistency is rigorously maintained.

    ·Endotoxin-Free & Sterile Processing Manufactured in a cleanroom environment, our peptides are free from endotoxins, microbial contamination, and other impurities that could interfere with cell-based or in vivo studies.

    ·Retail and bulk orders are accepted.

    ·Neutral packaging with full sealing for safe international shipping.

    ·Fast dispatch within 1-3 working days after payment confirmation.

    Shop Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr-Detailed Image 9
    Shop Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr-Detailed Image 10


    Contact Us


    Please contact us if you have any doubts regarding our products or enterprise.

    We provide dedicated service for all clients.

    Shop Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr-Detailed Image 11



    Certificates
    • Melatonin| CAS73-31-4|99% High Purity Melatonin|Hot selling|10mg|20mg|Wholesale and bulk orders are available|Pharmaceutical Grade|High quality|Low pr Certificates 1

    Basic Info
    Product Name:

    Melatonin

    Other Name:

    Acetamide,N-[2-(5-methoxy-1H-indol-3-yl)ethyl]-;Acetamide,N-[2-(5-methoxyindol-3-yl)ethyl]-;N-[2-(5-Methoxy-1H-indol-3-yl)ethyl]acetamide;N-Acetyl-5-methoxytryptamine;Melatonin;Melatonine;5-Methoxy-N-acetyltryptamine;N-[2-(5-Methoxyindol-3-yl)ethyl]acetamide;Regulin;Melovine;Circadin;Melatol;NSC 113928;NSC 56423;3-(2-Acetamidoethyl)-5-methoxyindole;Melaxen;Slenyto;942407-96-7;1581233-31-9

    CAS No.:

    73-31-4

    Molecular Formula:

    C13H16N2O2

    InChIKeys:

    InChIKey=DRLFMBDRBRZALE-UHFFFAOYSA-N

    Molecular Weight:

    232.27800

    Exact Mass:

    232.28

    EC Number:

    200-797-7

    HScode:

    2932999099

    Categories:

    Polypeptide

    Characteristics
    PSA:

    54.12000

    XLogP3:

    0.8

    Appearance:

    Solid

    Density:

    1.269 g/cm3

    Melting Point:

    117 °C

    Boiling Point:

    512.8ºC at 760 mmHg

    Flash Point:

    264ºC

    Refractive Index:

    1.6

    Water Solubility:

    >34.8 [ug/mL]

    Storage Conditions:

    -15ºC

    Vapor Pressure:

    1.4X10-7 mm Hg at 25 deg C (est)

    Toxicity:

    LD50 orally in Rabbit: > 3200 mg/kg

    Hazard Identification

    Classification of the substance or mixture

    Not classified.

    GHS label elements, including precautionary statements

    Pictogram(s) No symbol.
    Signal word

    No signal word

    Hazard statement(s)

    none

    Precautionary statement(s)
    Prevention

    none

    Response

    none

    Storage

    none

    Disposal

    none

    Other hazards which do not result in classification

    no data available

    Handling and Storage

    Precautions for safe handling

    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

    Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

  • Seller Information
    Business Type:

    Trader

    Main Products:

    Tirzepatide,Semaglutide,Retatrutide,MOTS-C,GHK-CU,MT-2

    Location:

    203, NO. 88 Zhongxin North Road, Hangzhou Avenue Sub-district, Binhai New Area, Tianjin

    Payment Terms:

    TT against copy of documents,D/P,D/A,TT against B/L draft before shipment,100% TT in advance

    Average lead Time:

    12

    Total Annual Revenue:

    $2.5 million-$5 million

    Total Employees:

    51-100

    Year of Establishment:

    2026

       Our company is a professional enterprise engaged in the chemical industry for many years, specializing in the import and export of chemical raw materials, fine chemicals, industrial additives, and related products.
       With a well-established supply chain system and strict quality control standards, we integrate high-quality manufacturing resources to ensure stable product quality and reliable supply. Our product portfolio covers general chemicals, fine chemicals, rubber and plastic raw materials, water treatment chemicals, and other related categories, serving both domestic and international markets.
       Adhering to the principles of integrity, quality first, and mutual benefit, we strictly control product quality and delivery timelines. We provide comprehensive one-stop foreign trade solutions, including product sourcing, customized selection, logistics coordination, and customs clearance services according to customer requirements.
       Leveraging extensive industry experience and a well-developed global sales network, we are committed to meeting diverse international procurement needs. We aim to build a stable and trustworthy bridge for global chemical trade and establish long-term, sustainable partnerships with clients worldwide.
  • Inquiry History
    27 Inquiries
    Country Product Purchase Quantity Date Posted
    United States

    High Purity 99% White Powder Melatoninfor Sleeping Promotion Cas 73-31-4 Melatonine

    5 MT Jun 11, 2024
    United States

    China sleep Melatonine powder API Raw Material 99% Melatonin CAS 73-31-4

    5 MT Jun 11, 2024
    Pakistan

    melatonin

    25 KG Mar 4, 2026
    Netherlands

    Melatonin

    500 G Jun 4, 2026
    Netherlands

    Melatonin

    50 G Jun 1, 2026
    India

    Melatonin

    50.00 KG May 11, 2026
    Egypt

    Melatonin

    10 KG Jan 20, 2026
    India

    Melatonin

    50 KG Dec 5, 2025
    Thailand

    melatonin

    25 KG Sep 22, 2025
    India

    MELATONIN

    25 KG Sep 9, 2025
    India

    Melatonine

    50.00 KG Jul 16, 2025
    South Korea

    melatonin

    1 KG Jul 14, 2025
    Pakistan

    Melatonine

    1000.00 KG Mar 25, 2025
    India

    Melatonin 99.5% White powder

    1 MT Mar 15, 2024
    India

    Melatonin

    1.00 KG Jan 5, 2024
    United Kingdom

    melatonin powder

    100 G Jul 6, 2026
    Lebanon

    Melatonin

    1 KG May 9, 2026
    Germany

    Melatonin

    30 G Mar 17, 2026
    Uzbekistan

    Melatonine

    100 KG Jan 26, 2026
    United Kingdom

    Melatonin

    1000 MT Apr 22, 2025
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