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AMINO ACIDS L-Cystine buy - large image1
AMINO ACIDS L-Cystine buy - image1

AMINO ACIDS L-Cystine

GMP KOSHER 4 Inquiries

Unit Price:

$7000-8000/MT EXW

Get Latest Price
CAS No.:

56-89-3

Grade:

USP/AJI/FCC/EP grade

Content:

99%

Packaging:

25kg/Cardboard Drum

Price valid (until):

2029-07-05

Company Type:
Manufactory
Location:
United Kingdom
Qualification:
Main Products:

l-lysine monohydrochloride,dl-methionine,n-acetyl-l-cysteine,l-methionine,glycine,l-cysteine hcl monohydrate

  • Product Description

  • Seller Information

  • Inquiry History

  • Description


      Product Detail  


    Cystine is the oxidized dimer form of the amino acid cysteine and has the formula (SCH₂CH(NH₂)CO₂H)₂. It is a white solid that is slightly soluble in water. It serves two biological functions: a site of redox reactions and a mechanical linkage that allows proteins to retain their three-dimensional structure. It's the main raw material of l-cysteine Hydrochloride.

    Product: L-Cystine

    CAS NO.: 56-89-3


    • Chemical formula: C₆H₁₂N₂O₄S₂
    • Average Molar mass: 240.30 g/mol
    • Melting point: 476.60°F (247°C)

    Quality standard: AJI92, EP6, USP34, industrial grade

    Certificates

    Basic Info
    Product Name:

    (-)-Cystine

    Other Name:

    L-Cystine;Cystine,L-;Bis(β-amino-β-carboxyethyl) disulfide;Cystine acid;β,β′-Diamino-β,β′-dicarboxydiethyl disulfide;Dicysteine;3,3′-Dithiobis(2-aminopropanoic acid);β,β′-Dithiodialanine;Cystine;L-Cysteine disulfide;Propanoic acid,3,3′-dithiobis[2-amino-,[R-(R*,R*)]-;(-)-Cystine;L-Cystin;L-(-)-Cystine;Oxidized L-cysteine;[R-(R*,R*)]-3,3′-Dithiobis[2-aminopropanoic acid];l-Cystine;L-Alanine,3,3′-dithiobis-;NSC 13203;24645-67-8;154605-69-3

    CAS No.:

    56-89-3

    Molecular Formula:

    C6H12N2O4S2

    InChIKeys:

    InChIKey=LEVWYRKDKASIDU-IMJSIDKUSA-N

    Molecular Weight:

    240.30000

    Exact Mass:

    240.30

    EC Number:

    206-486-2

    UNII:

    48TCX9A1VT

    DSSTox ID:

    DTXSID2046418

    NCI Thesaurus Code:

    C29610

    HScode:

    2930901000

    Characteristics
    PSA:

    177.24000

    XLogP3:

    -6.3

    Appearance:

    DryPowder

    Density:

    1.677 g/cm3

    Melting Point:

    260.5 °C (decomp)

    Boiling Point:

    468.2ºC at 760 mmHg

    Flash Point:

    237ºC

    Refractive Index:

    1.653

    Water Solubility:

    H2O: 0.112 g/L (25 ºC);1 M HCl: 100 mg/mL

    Storage Conditions:

    Store at RT.

    PKA:

    1None

    Dissociation Constants:

    1

    Collision Cross Section:

    149.4 Ų [M+H]+ [CCS Type: DT, Method: single field calibrated with Agilent tune mix (Agilent)]|145 Ų [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine]|149.4 Ų [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|151.2 Ų [M+Na]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|143 Ų [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|147.3 Ų [M+Na-2H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|148.1 Ų [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine and drug standards]|144.39 Ų [M-H]- [CCS Type: DT, Method: stepped-field]|150.08 Ų [M+H]+ [CCS Type: DT, Method: stepped-field]|151.81 Ų [M+Na]+ [CCS Type: DT, Method: stepped-field]|147.3 Ų [M-2H+Na]-

    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:

    Manufactory

    Main Products:

    l-lysine monohydrochloride,dl-methionine,n-acetyl-l-cysteine,l-methionine,glycine,l-cysteine hcl monohydrate

    Location:

    dongsheng road

    Payment Terms:

    TT against copy of documents,L/C

    Average lead Time:

    80

    Total Annual Revenue:

    $5 million-$10 million

    Total Employees:

    5-10

    Year of Establishment:

    2015


    Premium Ingredient Co., Ltd has been producing and distributing amino acids, vitamins, phosphate, nutrition, preservatives, thickener, sweetener, thickener, leavening agent, mineral products, acidulant, herbs extracts for decades, severing for more than 100 clients in the industries of food, beverage, diet supplements, cosmetic, pharmaceutical and animal feeding, exporting to dozens of countries. We supply these products only from the first class Chinese factories  with extensive experience, comprehensive management systems.


    ◆ Amino Acids

    ◆ phosphate

    ◆ acidulants

    ◆ preservatives

    ◆ sweeteners

    ◆ flavourings

    ◆ thickeners

    ◆ Leavening agent

    ◆ mineral

    ◆ Herb extract

    ◆ vitamins

    ◆ nutrition




    With more than 10 years working experience, Premium Ingredient Co., Ltd offers not only quality products, but also good service, quick response, delivery in time, share up-to-the minute market information, supply one-stop-shop solutions.


    We have established a long-term, extensive and deep cooperation with the source to ensure sufficient supplies, stable prices, and rapid shipment. Our 3rd party documents include ISO9001, ISO14001, HACCP, HALAL, KOSHER, GMP, FAMI-QS and so on. You can consistently count on us.



    ------------------------------------- Mission------------------------------------

     

    As a bridge between Chinese factories and overseas buyers, we select suppliers with extensive experince, comprehensive  management systems, and superior quality. We provide not only high quality, but also value-added products. We also promptly  feedback buyers' needs to factories, helping- them upgrade their products, grow and progress together.   




    -------------------------------------Our Quality------------------------------------




    Rigorous Testing

    We implement a comprehensive testing protocol for all our  products, ensuring they meet the highest quality and safety standards before reaching our clients.

    Certified Suppliers

    Our suppliers are meticulously vetted and certified, guaranteeing that we source only from first-class factories. This rigorous selection process strengthens our product quality and reliability.

    Continuous Monitoring

    We conduct ongoing monitoring of our production processes to ensure compliance with industry regulations, thereby reinforcing our commitment to excellence.

    Customer Feedback

    We value our clients’ feedback and continuously seek their  input to enhance our quality assurance processes, ensuring we meet their evolving needs.

     

    Premium ingredient selects suppliers and provide complete quality control documents to meet your daily needs. Our product quality meets international standards. such as AJI, USP, FCC, EP, CP, CP, or customerized quality. Below is a list of regulatory documents we provide for our ingredients.


    ★ ISO Certification                                         ★ Halal Certificate

    ★ Kosher Certificate                                        ★ IP certificate

    ★ Haccp certificate                                          ★ Allergens with Glutens

    ★ GRAS Statement                                          ★ HACCP Program

    ★ BSE/TSE Statement                                      ★ Certificate of Analysis

    ★ Country of Origin Certificate                        ★ Material Safety Data Sheet

    ★ Flow Chart (product processing)                   ★ Food Grade Certificate

    ★ Nutritional Information                                  ★ GMO Statement

    ★ Specification Sheet






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

    L-CYSTINE

    1.00 KG Mar 31, 2026
    India

    L-CYSTINE

    1.00 KG Aug 7, 2025
    Australia

    L-Cystine

    100.00 KG Jun 1, 2025
    India

    L-CYSTEINE 

    50.00 KG Mar 25, 2025
    Post an enquiry for this product
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