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L - Leucine

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Unit Price: Get Latest Price
CAS No.:

61-90-5

Grade:

Pharmaceutical grade / Food grade

Content:

99%

Brand:

East Chemsources

Packaging:

25kg/Cardboard Drum

Price valid (until):

2024-12-22

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

Food additives,Pharmaceutical raw materials,Chemicals,Comestic raw materials

  • Product Description

  • Seller Information

  • Inquiry History

  • Description


      Product Detail  


    • Basic Information

      • Chemical Name: L - Leucine; (2S) - 2 - Amino - 4 - methylpentanoic acid.
      • CAS Number: 61 - 90 - 5.
      • Molecular Formula:  C6​H13​NO2​ .
      • Molecular Weight: 131.17.

    • Physical and Chemical Properties
      • Appearance: White crystalline powder.
      • Melting Point: 293 - 295 °C (decomposes).
      • Solubility: Sparingly soluble in water (about 2.3 g/100 mL at 25 °C). Soluble in dilute acids and alkalis. Insoluble in e/thanol and e/ther.
      • Specific Rotation:  [α]D20​  = +14.5° to +16.0° (c = 5, in 6 N HCl).
    • Quality Specifications
      • Purity: Assay (dry basis) is typically 98.5% - 101.0%.
      • Loss on Drying: Max. 0.5%.
      • Residue on Ignition: Max. 0.1%.
      • Heavy Metals: Max. 10 ppm.
      • Arsenic: Max. 2 ppm.
      • Related Substances: Each individual impurity: Max. 0.5%. Total impurities: Max. 1.0%.

    •  Uses
      • Feed Industry: It is an essential amino acid for animals, widely used in animal feed to promote growth and improve feed efficiency.
      • Pharmaceutical Industry: Used in the preparation of amino acid infusions and as a raw material for synthesizing some drugs. It is also beneficial for wound healing and muscle recovery.
      • Food Industry: As a food additive for nutritional fortification, especially in protein - rich foods and sports nutrition products.
    • Storage and Handling
      • Storage: Store in a cool, dry place, protected from light. Keep the container tightly closed to prevent moisture absorption.
      • Handling: Wear appropriate protective equipment to avoid contact with skin and eyes. In case of contact, rinse immediately with plenty of water.
    • Safety Information
      • Hazard Statements: Generally considered to be of low toxicity. However, direct contact with eyes or skin may cause irritation. Inhalation of dust may irritate the respiratory tract.
      • Precautionary Statements: Avoid inhalation of dust. Provide good ventilation in the storage and handling area. In case of accidental ingestion, seek medical attention if symptoms occur.
    Shop L - Leucine-Detailed Image 1

    Company Introduction: East Chemsources Limited was established in 2008, is a professional company engaged in the development of chemical products. In the past of 15 years,through continuous technological innovation and the use of talent introduction advantages, we have achieved rapid development, and has become an international diversified modern chemical enterprise. At present, our products have been exported to more than 80 countries,including food additives, medical raw materials, chemical products and personal care.

    Since the establishment of the company, always adhere to the credibility first, quality first enterprise creed. Our company is committed to creating a customer-centric, customer-demand-oriented, customer value creation and achievement of customer dreams for the purpose of the service concept, with a broad vision and broad mind, committed to creating good benefits and market operation, to build corporate brand.

    Basic Info
    Product Name:

    L-Leucine

    Other Name:

    L-Leucine;Leucine,L-;Leucine;Pentanoic acid,2-amino-4-methyl-,(S)-;Leu;(S)-2-Amino-4-methylvaleric acid;(S)-(+)-Leucine;(S)-2-Amino-4-methylpentanoic acid;(S)-Leucine;L-α-Aminoisocaproic acid;L-(+)-Leucine;L-Norvaline,4-methyl-;NSC 46709;(2S)-2-Amino-4-methylpentanoic acid;L-2-Amino-4-methylpentanoic acid;(2S)-2-Amino-4-methylpentanoic acid;1: PN: WO2020097235 SEQID: 238 claimed sequence;17: PN: WO2021055880 SEQID: 18 claimed protein;7005-03-0

    CAS No.:

    61-90-5

    Molecular Formula:

    C6H13NO2

    InChIKeys:

    InChIKey=ROHFNLRQFUQHCH-YFKPBYRVSA-N

    Molecular Weight:

    131.17300

    Exact Mass:

    131.17

    EC Number:

    200-522-0

    UNII:

    GMW67QNF9C

    NSC Number:

    760100

    DSSTox ID:

    DTXSID9023203

    NCI Thesaurus Code:

    C29599

    Color/Form:

    White glistening hexagonal plates from aqueous alcohol|White crystals

    HScode:

    29224995

    Characteristics
    PSA:

    63.32000

    XLogP3:

    -1.5

    Appearance:

    Solid

    Density:

    1.14 g/cm3

    Melting Point:

    293 °C

    Boiling Point:

    122-134 °C @ Press: 2-3 Torr

    Flash Point:

    90.3ºC

    Refractive Index:

    1.463

    Water Solubility:

    H2O: 22.4 g/L (20 C)

    Storage Conditions:

    Store at RT.

    Vapor Pressure:

    <1 hPa (20 °C)

    Specific rotation:

    Specific optical rotation: -10.8 at 25 °C/D (c = 2.2); +15.1 deg at 26 °C/D in 6N HCl (38 mols HCl per mol leucine); +7.6 deg at 20 °C/D in 3N NaOH (30 mols NaOH per mol leucine). Molecular rotation: +21.0 deg at /D (5NHCl); +29.5 deg /D (glacial acetic acid)

    PKA:

    2.35(at 13 °C)

    Henrys Law Constant:

    Henry's Law constant = 3.49X10-9 atm-cu m/mol at 25 °C (est)

    Dissociation Constants:

    2.35 (at 13 °C)|pKa = 2.35|pKa1 = 2.36 (carboxylic acid); pKa2 = 9.63 (amine) (est)

    Collision Cross Section:

    135.16 Ų [M+H]+ [CCS Type: DT, Method: stepped-field]|138.71 Ų [M-H]- [CCS Type: DT, Method: stepped-field]|128 Ų [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine]|134.8 Ų [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|130.6 Ų [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|132.51 Ų [M-H]- [CCS Type: DT, Method: stepped-field]|135.56 Ų [M+H]+ [CCS Type: DT, Method: stepped-field]|131.8 Ų [M-H]-

    Experimental Properties:

    Crystals. Freely soluble in water. /Leucine hydrochloride/|Hydroxyl radical reaction rate constant = 4.23X10-11 cu cm/molec-sec at 25 °C (est)

    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:

    Food additives,Pharmaceutical raw materials,Chemicals,Comestic raw materials

    Location:

    Room 501, Unit 6, No. 40, hushan road,Licang,Qingdao

    Payment Terms:

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

    Average lead Time:

    10

    Total Annual Revenue:

    $1 million-$2.5 million

    Total Employees:

    11-50

    Year of Establishment:

    2017

    QINGDAO EASTCHEMSORCES TRADE LIMITED is a leading Manufactory supplier of Sorbitol, Citric acid, Sodium hypochlorite based in Qingdao, Shandong, China. With a commitment to quality and customer satisfaction, QINGDAO EASTCHEMSORCES TRADE LIMITED has become a trusted name in the industry. Our product line includes a range of high-quality Sorbitol, Citric acid, Sodium hypochlorite, which are available at competitive prices. QINGDAO EASTCHEMSORCES TRADE LIMITED has established itself as a reliable supplier of chemical products on the echemi.com.

  • Inquiry History
    8 Inquiries
    Country Product Purchase Quantity Date Posted
    Greece

    LEUCINE (Leu,L)

    1000.00 KG Sep 25, 2025
    United States

    L-leucine

    10 MT Jun 10, 2025
    India

    L-Leucine

    1 MT Apr 23, 2025
    India

    L Leucine

    30.00 TON Aug 30, 2024
    India

    Leucine

    50 G Jun 10, 2024
    India

    L-Leucine

    500 KG Aug 22, 2023
    India

    L-Leusine

    25 KG Apr 21, 2025
    Switzerland

    L- Leucine instant water soluble

    2 MT Jan 25, 2024
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