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melatoninsS

ISO TDS 27 Inquiries

Unit Price:

$660/UNIT FOB

Get Latest Price
CAS No.:

73-31-4

Grade:

Pharmaceutical Grade / Cosmetic Grade

Content:

99%

Port:

Shenzhen

Brand:

lq

Packaging:

10 mg

Price valid (until):

2026-08-14

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

Retatrutide,Tirzepatide,Semaglutide,GHK-CU

  • Product Description

  • Seller Information

  • Inquiry History

  • Description
    Items Specifications
    Appearance White lyophilized crystalline powderPurity (HPLC)≥98.0%
    Purity (HPLC) ≥99.0%
    Water Content ≤2.0%
    Residual Solvent Meet USP standard
    Heavy Metals (Pb, As, Cd, Hg) Total ≤10ppm
    Single Unknown Impurity ≤0.5%
    Total Impurities Consistent with target peptide
    Sterility (Optional) Sterile for grade

    Product Basic Overview

    This series of small-molecule bioactive peptides are artificially synthesized active peptide substances via solid-phase peptide synthesis. Relying on mature biosynthetic production lines, they are universal basic functional raw materials widely used in bio-material fields. The whole production workflow covers amino acid feeding, peptide chain assembly, liquid phase purification, vacuum freeze-drying and split packaging, with independent quality inspection nodes set for each procedure. The finished products feature stable purity and controllable impurities, suitable for multiple compliant application scenarios including daily cosmetic raw materials, biological laboratory scientific research, and biological fermentation additives.

    Peptides are short molecular chains formed by ordered combination of various amino acids in preset sequences. Different from macromolecular proteins, they feature tiny molecular size and excellent water solubility, which can be evenly mixed into aqueous solutions, alcohol-water compound systems, cream substrate and other mediums without complex solubilizing additives. Our factory supplies dozens of standard sequence peptides in stock, and accepts custom sequence synthesis services. Custom peptides cover short dipeptides, tripeptides to long-chain peptides with more than ten amino acids. Batch production capacity ranges from gram-level test samples, kilogram small batches to 25kg bulk raw materials, meeting procurement demands of clients with different order volumes.

    Our factory owns an independent 100,000-class clean production workshop, fully equipped with HPLC, mass spectrometer, moisture tester, heavy metal detector and microorganism incubator. Each batch of products comes with a complete Certificate of Analysis (COA), including full test data of appearance, purity, moisture, heavy metals, microorganism and sequence matching. The reports can be used for overseas customs clearance, laboratory filing and factory raw material incoming inspection. All raw materials are packed with moisture-proof and light-sealed packaging for storage and transportation; cold chain transport is optional to avoid activity attenuation caused by high temperature and humidity, extending the valid storage period of raw materials.

    Superior Synthetic Technology

    Solid-phase Peptide Synthesis Adopt mainstream solid carrier synthesis route in the industry. High-stability protective reagents are used for amino acid protective groups to stabilize conversion rate of peptide chain assembly reactions, greatly reducing generation of missing fragments and mis-sequence impurities. After synthesis, specific cleavage reagents are applied to remove carriers and protective groups. Crude peptide lysate goes through multi-stage extraction to remove residual reaction reagents and small molecular by-products, cutting impurity generation from the source and lowering follow-up purification pressure. The whole synthetic workflow is highly automated; reaction temperature, reagent dropping speed and reaction duration are precisely controlled by intelligent equipment, leading to tiny purity fluctuation between batches and stable raw material performance for long-term bulk procurement.

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    Certificates
    • melatoninsS Certificates 2

    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

    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:

    Retatrutide,Tirzepatide,Semaglutide,GHK-CU

    Location:

    Plot 1, No. 205 Tongbao Road, Jiangdong Subdistrict, Yiwu City, Jinhua City, Zhejiang Province

    Payment Terms:

    TT against B/L draft before shipment,100% TT in advance

    Year of Establishment:

    2026

  • 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
    United Kingdom

    melatonin powder

    100 G Jul 6, 2026
    Netherlands

    Melatonin

    50 G Jun 1, 2026
    Lebanon

    Melatonin

    1 KG May 9, 2026
    Germany

    Melatonin

    30 G Mar 17, 2026
    Uzbekistan

    Melatonine

    100 KG Jan 26, 2026
    India

    Melatonine

    50.00 KG Jul 16, 2025
    United Kingdom

    Melatonin

    1000 MT Apr 22, 2025
    India

    Melatonin

    5 KG Nov 18, 2024
    Netherlands

    Melatonin

    500 G Jun 4, 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
    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
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