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L-Leucine ,CAS NO.61-90-5 99%HPLC white crystalline powder_LYNA Bio

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Unit Price:

$9.8-10.3/KG FOB

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CAS No.:

61-90-5

Grade:

Food Grade

Content:

99%

Port:

hongkong

Brand:

Packaging:

1kg\bag

Sample Available:

Yes

Price valid (until):

2026-10-20

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Xi'an Lyna Bio-Tech Co., Ltd.

Company Type:

Manufactory

Location:

China

Qualification:

Main Products:

Urolithiasis B/Spermine Hydrochloride/ Apigenin/ Theacrine/FAA/OEA/PEA Theobromine/ Squid Ink Powder

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Product Description
Seller Information
Inquiry History

Description

Product Detail

ProName: L‑Leucine

CasNo: 61-90-5
Molecular Formula: C6H13NO2
Appearance: White lyophilized powder
Application: Healthcare Raw Materials and Nutrition...
DeliveryTime: 3-7 days
PackAge: 1kg/aluminum foil bag 25kg/drum
Port: Main ports in China
ProductionCapacity: 25-500 Kilogram/Month
Purity: 99%HPLC
Storage: Placed in Shade, dry, dark and low-tem...
Transportation: By express, by air and by sea
LimitNum: 1 Kilogram
Heavy Metal: Heavy Metals
Limited Quantity: 10ppm
Valid Period: 24 months

L‑Leucine (CAS 61‑90‑5) is white crystalline essential branched‑chain amino‑acid powder, slightly soluble in water. As one of BCAA, it stimulates muscle‑protein synthesis and alleviates muscle breakdown for post‑workout recovery. Widely applied in sports dietary supplements, food fortifier, cell‑culture media and pharmaceutical compound‑amino‑acid raw‑materials. Strict quality parameters including specific‑rotation and heavy‑metal limits comply with USP, EP and AJI specifications. Store sealed under cool and dry conditions for nutritional‑raw‑material trade.

NOTE: This product was prepared by chemical synthesis. Used only for research. Not for human use.

Items	Specifications
CAS	61-90-5
Shelf life	>2 years if stored properly
Shelf life	powder
Purity	>99% (or refer to the Certificate of Analysis)
Transportation	By Air
Origin	China
Specification	1kg\bag
Storage condition	Dry, dark, room temperatur

Advantage

1. Ultra-High Purity

Each batch is synthesized and purified to >99% purity, ensuring reliable and reproducible results in sensitive experiments.

2.Accurate Dosing & Consistency
Our products are precisely weighed and vacuum-sealed under sterile conditions. Batch-to-batch consistency is rigorously maintained.

3.Endotoxin-Free & Sterile Processing
Manufactured in a cleanroom environment, our are free from endotoxins, microbial contamination, and other impurities that could interfere with cell-based or in vivo studies.

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Global Service

Who We Serve

-We proudly work with clients across North America, Europe, Asia, and Latin America, including:

-Biotech and pharma firms

-Research institutions & universities

-Formulation startups

-CDMOs and CRO partners

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About Us

We are a chemical manufacturer integrating production, processing and export, mainly dealing in pharmaceutical intermediates and various industrial chemicals. Since its establishment, the company adheres to the spirit of "integrity management, strict quality control, customer first", and has won praise from customers at home and abroad. We have also established an excellent professional sales team with rich international marketing experience, able to efficiently provide a range of products and professional services.

With synthetic biology platform technology as the core, it conducts innovative research and development, mainly engaged in the research and development of recombinantly expressed pharmaceutical proteins. Its products include innovative drugs, APIs, pharmaceutical and green synthetic industrial enzymes, protein products, etc.

At present, our company has realized the industrialization of a variety of biosynthetic products and has obtained cooperation orders from many well-known domestic and foreign pharmaceutical companies.

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FQA

1. How to make an order?

Send me message and let me know what you need with quantity , then i will calculate to you.

2. What's the lead time and shipping ways?

We will delivery to the package by USPS, FEDEX, DHL paket and UPS express to you after receive your payment, it would take around 5-15 days to your address.

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)

Certificates

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:

Nutrition Supplements

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:
Urolithiasis B/Spermine Hydrochloride/ Apigenin/ Theacrine/FAA/OEA/PEA Theobromine/ Squid Ink Powder

Location:
Room 1502, Unit 3, Building 2, Nanshan Garden, Jianye 2nd Road, Guodu Subdistrict, Chang'an District, Xi'an City, Shaanxi Province, P.R.China

Total Employees:
101-200

Year of Establishment:
2017

LN is a chemical manufacturer integrating production, processing and export, mainly dealing in pharmaceutical intermediates and various industrial chemicals. Since its establishment, the company adheres to the spirit of "integrity management, strict quality control, customer first", and has won praise from customers at home and abroad. We have also established an excellent professional sales team with rich international marketing experience, able to efficiently provide a range of products and professional services.

With synthetic biology platform technology as the core, it conducts innovative research and development, mainly engaged in the research and development of recombinantly expressed pharmaceutical peptides and proteins. Its products include innovative drugs, APIs, pharmaceutical and green synthetic industrial enzymes, functional peptides and protein products, etc.

At present, our company has realized the industrialization of a variety of biosynthetic peptide products and has obtained cooperation orders from many well-known domestic and foreign pharmaceutical companies.

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 ,CAS NO.61-90-5 99%HPLC white crystalline powder_LYNA Bio

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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