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L-Leucine

Name: L-Leucine
Brand: CUIKANG
SKU: pr2303131540
Price: 1 USD
Availability: InStock

10 Inquiries

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CAS No.:

61-90-5

Grade:

Industrial Grade

Content:

99%

Brand:

CUIKANG

Packaging:

25kg/Cardboard Drum

Price valid (until):

2025-01-30

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Shaanxi Cuikang Pharmaceutical Technolog

Company Type:

Manufactory

Location:

China

Payment Terms:

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

Average Lead Time:

45 days

Qualification:

Main Products:

Cosmetics raw materials,Pesticide intermediate,Photoelectric material,pharmaceutical intermediates,Raw materials for food and health products,Polymer materials

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Product Description
Seller Information
Inquiry History

Description

Product Detail

Amino acid drugs. Used as amino acid infusion and synthesis amino acid preparation. It is used for the diagnosis and treatment of idiopathic hyperglycemia in children, as well as disorders of glucose metabolism, liver diseases with reduced bile secretion, anemia, poisoning, muscular dystrophy, poliomyelitis sequelae, neuritis and psychosis. It is contraindicated in patients with diabetes, cerebrovascular sclerosis and kidney disease with proteinuria and hematuria. Patients with gastric and duodenal ulcer should not take it (refer to relevant literature)

Items	Specifications

ECHEMI Editorial Reference

L-Leucine is an essential branched-chain amino acid (BCAA), which activates the mTOR signaling pathway[1].
Solid|Small white lustrous plates or crystalline powder; odourless
L-leucine is the L-enantiomer of leucine. It has a role as a plant metabolite, an Escherichia coli metabolite, a Saccharomyces cerevisiae metabolite, a human metabolite, an algal metabolite and a mouse metabolite. It is a pyruvate family amino acid, a proteinogenic amino acid, a leucine and a L-alpha-amino acid. It is a conjugate base of a L-leucinium. It is a conjugate acid of a L-leucinate. It is an enantiomer of a D-leucine. It is a tautomer of a L-leucine zwitterion.|An essential branched-chain amino acid important for hemoglobin formation.|Leucine is one of nine essential amino acids in humans (provided by food), Leucine is important for protein synthesis and many metabolic functions. Leucine contributes to regulation of blood-sugar levels; growth and repair of muscle and bone tissue; growth hormone production; and wound healing. Leucine also prevents breakdown of muscle proteins after trauma or severe stress and may be beneficial for individuals with phenylketonuria. Leucine is available in many foods and deficiency is rare. (NCI04)

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:

Bulk Drug Intermediates

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 Å² [M+H]+ [CCS Type: DT, Method: stepped-field]|138.71 Å² [M-H]- [CCS Type: DT, Method: stepped-field]|128 Å² [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine]|134.8 Å² [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|130.6 Å² [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|132.51 Å² [M-H]- [CCS Type: DT, Method: stepped-field]|135.56 Å² [M+H]+ [CCS Type: DT, Method: stepped-field]|131.8 Å² [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)

See More L-Leucine Properties 

Hazard Identification

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	No symbol.
Signal word	No signal word
Hazard statement(s)	none
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.

See More L-Leucine Safety Data Sheet 

Seller Information

Business Type:
Manufactory

Main Products:
Cosmetics raw materials,Pesticide intermediate,Photoelectric material,pharmaceutical intermediates,Raw materials for food and health products,Polymer materials

Location:
D307, Zhuque Square Office Building, No. 14, Chang'an North Road, Beilin District, Xi'an City, Shaanxi Province

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

Average lead Time:
45 days

Total Annual Revenue:
Less than $1 million

Total Employees:
11-50

Year of Establishment:
2023

Company Certificates
- ISO
- ISO
- ISO
Shaanxi Cuikang Pharmaceutical Technology Co., Ltd., founded in January 2023, is a wholly-owned subsidiary of Shaanxi Cuicheng Bio-pharmaceutical Technology Co., Ltd., and a comprehensive innovative enterprise focusing on the research and development, production, sales, import and export trade, technical services and related resource allocation and integration of products in the field of fine chemistry and biochemistry. The company has built a 2700 square meter R&D center in Hanzhong, Shaanxi Province, and has established in-depth and stable cooperative relations with three factories, which can provide one-stop service for domestic and foreign customers from pilot R&D to industrial scale-up production.

Cuikang Company is an enterprise integrating natural products, fine chemicals, biological fermentation, innovative material research and development, production, sales and technical services. It can provide global customers with a series of products with different specifications and models, such as proportional plant extracts, content plant extracts, synthetic chemical blocks, synthetic pharmaceutical intermediates, active API molecules, fermented pharmaceutical intermediates and APIs, health food, functional food raw materials, veterinary drug raw materials, pharmaceutical innovative materials, laboratory equipment, pharmaceutical machinery and equipment.

The company adheres to the market demand-oriented, technical innovation as the starting point, product quality as the core, customer service as the foundation, and the enterprise spirit of "professional integrity", and wholeheartedly provides high-quality products and services for customers 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
Russia	Inositol (B8)	20 MT	Sep 1, 2026

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L-Leucine

Product Description

Seller Information

Inquiry History

Classification of the substance or mixture

GHS label elements, including precautionary statements

Other hazards which do not result in classification

Precautions for safe handling

Conditions for safe storage, including any incompatibilities

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