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Cas 56-89-3 L-Cystine buy - large image1
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Cas 56-89-3 L-Cystine

4 Inquiries

Unit Price: Get Latest Price
CAS No.:

56-89-3

Grade:

Food Grade

Content:

99%

Port:

Tianjin

Brand:

Friend

Packaging:

25Kg Drum

Price valid (until):

2021-12-31

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

Food Additives,Tablet Candy,Solid Drink,Roasted Grain Powde,Vitamin C Tablet

  • 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.

    ItemsSpecifications
    Description
    White Crystals or Crystalline Powder
    Assay
    98.5-101.0%
    PH
    5.0-6.5
    Specific Rotation
    -215 to -225 degree
    Chloride(Cl)
    0.02% Max.
    Sulfate(SO4)
    0.02% Max.
    Ammonium (NH4)
    0.02% Max.
    Iron(Fe)
    20ppm Max.
    Heavy Metals(Pb)
    10ppm Max.
    Arsenic(As2O3)
    1ppm Max.
    Organic Volatile Impurities
    Meets the Requirements
    Loss on Drying
    0.2% Max.
    Residue on Ignition(Sulfated)
    0.10% Max.
    Organic Volatile Impurities
    Conforms
    Sample
    Avaliable
    Product name
    L-Cystine Base
    Grade
    Food Grade
    Application
    Food Supplement
    Storage
    Cool Dry Place
    Package
    25kg/drum


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    Packing & Delivery


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      Company Profile  


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    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

    Categories:

    Nutrition Supplements

    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:

    Food Additives,Tablet Candy,Solid Drink,Roasted Grain Powde,Vitamin C Tablet

    Location:

    East Section of Hongyuan Road, Qiaomiao Town, Wuzhi County, Henan Province, China

    Payment Terms:

    TT against copy of documents,L/C

    Average lead Time:

    7

    Total Annual Revenue:

    $50 million-$100 million

    Total Employees:

    101-200

    Year of Establishment:

    2017

    Wuzhi Friend Food Technology Co., Ltd., located at Wuzhi County, Jiaozuo City, where is the Four Great Huai Medicine producing region. The factory covers total 13,000 square meters. The first stage construction has finished 8,000 square meters. The total investment value comes to RMB 120 million. The factory is abundant with a group of experts and professors of 6 doctors, more than 30 postgraduates, more than 50 bachelors in Food, Chemical & Medicine majors.Taking the advantage of producing area and combination of producing and researching with Zhengzhou Academic Institutions, our mill mainly focus of Healthy Food and Raw Materials researching & producing. The main categories as: Solid Drink, Tablet Candy, Fast Food, Herbal Tea, Fried Nuts, Fruit powder, Dried Fruit & Pre-mixing Powder etc.

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

    L-Cystine

    100.00 KG Jun 1, 2025
    India

    L-CYSTINE

    1.00 KG Mar 31, 2026
    India

    L-CYSTINE

    1.00 KG Aug 7, 2025
    India

    L-CYSTEINE 

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