Product
Supplier
Encyclopedia
Inquiry
L-Leucine in bulk buy - large image1
L-Leucine in bulk buy - image1

L-Leucine in bulk

10 Inquiries

Unit Price: Get Latest Price
CAS No.:

61-90-5

Grade:

Food Grade

Port:

NINGBO

Packaging:

25kg/0.12kg Bag

Price valid (until):

2017-04-27

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

L-CYSTEINE HCL MONO /ANHYDROUS,L-CYSTINE ,,L-TYROSIEN, L-LEUCINE., L-ARGININE ASPARTATE ,,L-TRYPTOPHAN,L-THREONINE N-ACETYL-L-CYSTEINE,N-ACETYL-L-TYROSINE

  • Product Description

  • Seller Information

  • Inquiry History

  • Description
    L- leucine, also known as leucine, is chemically called alpha amino acid, and Proust was first isolated from cheese in 1819. Later, Braconnot obtained its crystallization from the acid hydrolysate of muscle and wool, and named it leucine. L is a common leucine eighteen amino acids in a human body, eight is one of the essential amino acids, as a L L L- isoleucine, leucine and valine molecule contains a methyl side chain known as the Branched chain Amina acids (branched chain amino acids,

    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

    Categories:

    Anticonvulsants

    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:

    Manufactory

    Main Products:

    L-CYSTEINE HCL MONO /ANHYDROUS,L-CYSTINE ,,L-TYROSIEN, L-LEUCINE., L-ARGININE ASPARTATE ,,L-TRYPTOPHAN,L-THREONINE N-ACETYL-L-CYSTEINE,N-ACETYL-L-TYROSINE

    Location:

    629 zhenning east road zhenhai ningbo china

    Payment Terms:

    TT against copy of documents,L/C,D/A

    Average lead Time:

    60

    Total Annual Revenue:

    $2.5 million-$5 million

    Total Employees:

    11-50

    Year of Establishment:

    1991

                        Ningbo Zhenhai Amino Acid Factory was established at the end of 1990. The factory is located on the coast of the beautiful East China Sea with convenient transportation. There are nearly 100 employees, the factory area is 10,000 square meters, the construction area is 5,000 square meters, and the fixed assets are 10 million yuan. With domestic advanced production equipment and testing capabilities, the annual production capacity of L-cysteine is 400 tons. The factory has strong technical force and ten technicians with intermediate level or above. It is one of the domestic professional manufacturers of cysteine series products. One. The main products of the factory are: 1, L-cysteine hydrochloride hydrate 2, L-cysteine hydrochloride anhydrous 3, L-cysteine 4, L-cystine 5, L- Leucine 6, L-tyrosine 7, L-arginine 8, L-arginine hydrochloride 9, L-histidine hydrochloride 10, L-isoleucine 11, L-va 12-L, threonine 13, L-ornithine hydrochloride 14, L-tryptophan 15, L-histidine 16, L-cysteine hydrochloride ethyl ester 17, L- Cysteine hydrochloride methyl ester 18, L-methionine 19, L-lysine base 20, L-lysine hydrochloride 21, L-alanine 22, L-proline 23 , L-serine 24, S-carboxymethyl-L-cysteine 25, N-ethyl ester-L-cysteine 26, N-ethyl ester-L-tyrosine 27, N-ethyl ester- L-leucine 28, DL-methionine 29, DL-tryptophan 30, DL-threonine 31, DL-isoleucine 32, DL-lysine 33, DL-valine 34, D- Tryptophan 35, D-threonine 36, D-methionine 37, D-isoleucine. All products of our factory comply with international standards such as Japanese Ajinomoto, American Pharmacopoeia, European Pharmacopoeia, and most of the products have obtained KOSHER certification. 99% of the products are exported and exported to Europe, the United States, Southeast Asia and other places. In recent years, the factory has been ranked ahead of its peers with high-quality products, good reputation, and good after-sales services. It has been rated as the key enterprise of foreign exchange earning in Zhejiang Province for three consecutive years and the largest enterprise in Zhejiang Province. In order to make the enterprise develop and grow continuously, the factory is currently cooperating with the scientific research departments of several domestic colleges and universities, and actively introducing talents, relying on scientific and technological strength, vigorously develop new amino acid products. Based on the concept of integrity and customer first, our factory hopes to establish good cooperative relations with friends and colleagues from all walks of life at home and abroad.

  • Inquiry History
    10 Inquiries
    Country Product Purchase Quantity Date Posted
    United States

    L-Leucine

    50 MG Jul 20, 2026
    United States

    L-leucine

    10 MT Jun 10, 2025
    India

    L-Leusine

    25 KG Apr 21, 2025
    Switzerland

    L- Leucine instant water soluble

    2 MT Jan 25, 2024
    India

    L-Leucine

    17952 KG Jul 8, 2026
    Greece

    LEUCINE (Leu,L)

    1000.00 KG Sep 25, 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
    Post an enquiry for this product
pic ×

Scan the QR Code to Share

All products displayed on this website are only for non-medical purposes such as industrial applications or scientific research, and cannot be used for clinical diagnosis or treatment of humans or animals. They are not medicinal or edible.

According to relevant laws and regulations and the regulations of this website, units or individuals who purchase hazardous materials should obtain valid qualifications and qualification conditions.

The information shown above is provided by the enterprise itself, and the authenticity, accuracy and legitimacy of the content are the responsibility of the publishing company. ECHEMI does not bear any guarantee responsibility for this. Please be aware that risks in internet transactions objectively exist.

Feedback & Suggestions
Send Message

Thank you for your feedback. If you require further assistance, please contact us by email at info@echemi.com or call us at +86-532-55729510.