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Nutritional Supplement Amino Acids CAS 61-90-5 L-Leucine Powder L Leucine

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CAS No.:

61-90-5

Grade:

Pharmaceutical Grade

Content:

99%

Packaging:

Foil Bag

Sample Available:

Yes

Price valid (until):

2022-12-31

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Xian ZB Biotech Co.,Ltd

Company Type:

Manufactory

Location:

China

Payment Terms:

TT against copy of documents

Average Lead Time:

8 days

Qualification:

Main Products:

Herb Extracts,Cosmetic raw materails,API

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Product Description
Seller Information
Inquiry History

Description

Nutritional Supplement Amino Acids CAS 61-90-5 L-Leucine Powder L Leucine

Product name	L-Leucine
Assay	99%
Test Method	HPLC
Particle Size	98% pass 80 mesh
Shelf Life	24 Months when properly stored.
Appearance	White Powder

L-Leucine is widely used in food, beverage and additive. Pharmaceutical raw materials and health care additives. It can inhibit the generation of muscle fatigue factors, reduce fatigue and tension, restore physical fitness, accelerate human protein synthesis, make muscles stronger, enhance muscle elasticity, reduce cholesterol, blood fat and blood sugar levels, improve muscle atrophy in the elderly, and delay aging.

Application:
Raw materials of health products;
Food additives;
Vitamins and amino acids;
Nutrition fortifier;

Specification:

Items	Specification	Results
Appearance	White crystalline Powder	Conforms
Assay	99.50%Min	99.92%
Solution	Clear and Colorless	Clear and Colorless
Residue on Ignition	0.1% Max.	0.01%
Loss on Drying	12.0% Max	11.10%
Bulk Density	0.50g/ml	0.52g/ml
Heavy Metals	10ppm Max	<10ppm
Pb	1ppm Max	<1ppm
As	1ppm Max.	<1ppm
Hg	1ppm Max.	<1ppm
Total Plate Count	<1000cfu/g	Conforms
Yeast	<25cfu/g	Conforms
Moulds	<25cfu/g	Conforms
E Coli	Negative	Negative
Salmonella	Negative	Negative
Staphylococcus Aureus	Negative	Negative
Coliforms	Negative	Negative

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:

Antineoplastics

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:
Herb Extracts,Cosmetic raw materails,API

Location:
1403,Jinye B Block

Payment Terms:
TT against copy of documents

Average lead Time:
8 days

Total Annual Revenue:
$2.5 million-$5 million

Total Employees:
11-50

Year of Establishment:
2015

Xian ZB Biotech Co.,Ltd is a leading Manufactory supplier of Arbutin, Nicotinamide, Flucytosine based in Xi'an, Shaanxi, China. With a commitment to quality and customer satisfaction, Xian ZB Biotech Co.,Ltd has become a trusted name in the industry. Our product line includes a range of high-quality Arbutin, Nicotinamide, Flucytosine, which are available at competitive prices. Xian ZB Biotech Co.,Ltd has established itself as a reliable supplier of chemical products on the echemi.com.

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	Leucine	50 G	Jun 10, 2024
India	L Leucine	30.00 TON	Aug 30, 2024
Russia	Inositol (B8)	20 MT	Sep 1, 2026

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Nutritional Supplement Amino Acids CAS 61-90-5 L-Leucine Powder 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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