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quality L-Leucine

Name: quality L-Leucine
Brand: yixin
SKU: pr2405081358
Price: 7 USD
Availability: InStock

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CAS No.:

61-90-5

Grade:

USP,AJI,EP,CP,FCC,FEED

Content:

99.8%

Port:

Shanghai

Brand:

yixin

Packaging:

25kg/Cardboard Drum

Price valid (until):

2025-12-31

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Xinyi Yixin Biotechnology.,LTD

Company Type:

Manufactory

Location:

China

Qualification:

Main Products:

amino acid,L-cysteine,acetyl cysteine,cystine,L-leucine,L-tyrsosine

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Product Description
Seller Information
Inquiry History

Description

L-Leucine

AJI/EP/USP/CP/Enterprise Standard

Xinyi Yixin Biotechnology is a professional amino acid factory in China.L-Leucine is one of our leading prodcuts.

Product List

No.	Product name	CAS NO.
1	L-Lysine Base	56-87-1
2	L-Lysine 50% Aqueous Solution	56-87-1
3	DL-Lysine Base	70-54-2
4	DL-Lysine 50% Aqueous Solution	70-54-2
5	L-Lysine L-Aspartic Acid	27348-32-9
6	L-Lysine L-Glutamic Acid	5408-52-6
7	Potassium L-Glutamate	19473-49-5
8	L-Histidine Monohydrochloride	5934-29-2
9	L-Histidine	71-00-1
10	L-Arginine	74-79-3
11	L-Arginine Hydrochloride	1119-34-2
12	L-Arginine L-Aspartic Acid	7675-83-4
13	L-Arginine L-Glutamic Acid	4320-30-3
14	High Purity L-Valine	72-18-4
15	Potassium L-Aspartate	14007-45-5
16	Magnesium L-Aspartate	215533-00-9
17	Calcium L-Aspartate	39162-75-9
18	Sodium L-Aspartate	323194-76-9
19	Zinc L-Aspartate	36393-20-1
20	Manganess L-Aspartate
21	Glycine Magnesium	1483-68-7
22	Glycine Manganess	14281-77-7
23	L-Cysteine Hydrochloride Monohydrate	7048-4-6
24	L-Cysteine Hydrochloride Anhydrous	52-89-1
25	L-Cystine	56-89-3
26	L-Leucine	61-90-5
27	L-Tyrosine	60-18-4
28	N-Acetyl L-Leucine	1188-21-2
29	N-Acetyl L-Cysteine	616-91-1
30	N-Acetyl L-Tyrosine	537-55-3
31	L-Cysteine Base	52-90-4
32	L-Asparagine Monohydrate	5794-13-8
33	L-Asparagine Anhydrous	70-47-3
34	L-Glutamic Acid	56-86-0
35	L-L-Glutamic Acid Hydrochloride	135-15-8
36	Complex amino acid powder	For feed or fertilizer

WhatsApp/Wechat:+86-18115256777

www.yixinamino.com

Shop L-Lysine Base AJI/EP/USP/CP food additive-Detailed Image 1

Shop quality L-Leucine-Detailed Image 2

L-Leucine is an essential amino acid that is used in the biosynthesis of proteins. It is essential in humans, meaning the body cannot synthesize it, it must be obtained from the diet. Main uses:
1. As a food additives, L-leucine has E number E641 and is classified as a flavor enhancer.
2. As a dietary supplement, leucine has been found to slow the degradation of muscle tissue by increasing the synthesis of muscle proteins, such as branched chain amino acids (BCAA)

CAS NO.: 61-90-5

Synonyms: (s)-2-amino-4-methylvalericacid;1-Leucine;2-Amino-4-methylpentanoic acid;2-amino-4-methylpentanoicacid;2-amino-4-methyl-valericaci;4-methyl-l-norvalin;4-methyl-norvalin;alpha-Amino-gamma-methylvaleric acid

Molecular Weight: 131.17

EC Number: 200-522-0

Molecular formula: C6H13NO2

Appearance: white to off-white crystal or cystalline powder

Packing: 25kgs/drum net

Conforms to: AJI, USP, EP

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.

Shop L-Lysine Base AJI/EP/USP/CP food additive-Detailed Image 1

Shop L-Lysine Base AJI/EP/USP/CP food additive-Detailed Image 2

FAQ

Q: How long is your delivery time?

A: Generally it is 1-2 weeks..

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What's your MOQ ?

A: For the high value product, our MOQ starts from 25kg.

Q: Is there a discount ?

A: Yes, for larger quantity, we always support with better price.

Q: How to confirm the Product Quality before placing orders ?

A: Our products conforms to the internation standard, such as USP, CP, FCC. We can also send you the samples for test. After you confirmed the samples, we will move to the next step for cooperation.

Q: How to start orders or make payments ?

A: You can send our your Purchase order ( if your company has ), or just send a simple confirmation by email or by Trade Manager, and we will send you Proforma Invoice with our bank details for your confirmation, then you can make payment accordingly.

Q: How do you treat quality complaint ?

A: We tested each batch before delivery and only qualified product will be delivery, in case you find any problem about the quality when you received and tested, send email to us, and enclose the photo of the products and 3rd party test reports, We negotiate to resolve these issues, recall or exchange goods, or compensate.

Q: why we choose you ?

A : We ensure ingredient purity, on-time delivery, process efficiency and the technical documents you require.

(1) quality: meet even exceed what you expect.

(2) prices: competitive

(3) service: one stop shop solution, respond soon, delivery fast, share the market information, share the new application of the product.

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:

Amino Acids and Proteins

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

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: amino acid,L-cysteine,acetyl cysteine,cystine,L-leucine,L-tyrsosine
Location: No.188 Jingyi Road, Tangdian Industrial Park, Xinyi City, Jiangsu Province, 221400China
Payment Terms: TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance
Average lead Time: 10
Total Annual Revenue: $10 million-$25 million
Total Employees: 201-300
Year of Establishment: 2012

Established in 2000,Xinyi Yixin Biotechnology Co., Ltd is a private enterprises specially engaged in the the manufacture of amino acid products. It covers an area of 100000 square meters. Over the past years, we have been developing with the science and technology as our guiding principle, and paying much attention to developing new products. On the basis of preferential policies towards the biochemical industry and good market prospect, we have developed into a multi-functioned biochemical enterprises with the annual output of 300-ton L-cystine, 100-ton L-arginine, 300-ton L-cysteine monohydrate, 100-ton L-cysteine anhydride, 100-ton L-Leucine, 50-ton L-Cysteine Anhydride,10000-ton amino acid powder, taking the elevation of economic profit as the center.

In the fierce market competition, we have been solidly grasped the operating policies of " Market Orientation; Strict Management; Hard Work for Business Creation; High Quality and Efficiency; Practice Innovation; Development and Progress. " and established a good organization for our enterprise on the basis of "Quality First, Customers First". Over the years, besides for the friendly cooperation with a large quantity of customers at home, we also have win the praise of foreign customers and signed many long-term goods-supplying contracts with them. Certified to ISO9001, we have been operating in accordance with the "demands of Quality Management System", in order to ensure that our products and service reach the stipulated quality level.

Our leading product:

No.	Product name	CAS NO.
1	L-Lysine Base	56-87-1
2	L-Lysine 50% Aqueous Solution	56-87-1
3	DL-Lysine Base	70-54-2
4	DL-Lysine 50% Aqueous Solution	70-54-2
5	L-Lysine L-Aspartic Acid	27348-32-9
6	L-Lysine L-Glutamic Acid	5408-52-6
7	Potassium L-Glutamate	19473-49-5
8	L-Histidine Monohydrochloride	5934-29-2
9	L-Histidine	71-00-1
10	L-Arginine	74-79-3
11	L-Arginine Hydrochloride	1119-34-2
12	L-Arginine L-Aspartic Acid	7675-83-4
13	L-Arginine L-Glutamic Acid	4320-30-3
14	High Purity L-Valine	72-18-4
15	Potassium L-Aspartate	14007-45-5
16	Magnesium L-Aspartate	215533-00-9
17	Calcium L-Aspartate	39162-75-9
18	Sodium L-Aspartate	323194-76-9
19	Zinc L-Aspartate	36393-20-1
20	Manganess L-Aspartate
21	Glycine Magnesium	1483-68-7
22	Glycine Manganess	14281-77-7
23	L-Cysteine Hydrochloride Monohydrate	7048-4-6
24	L-Cysteine Hydrochloride Anhydrous	52-89-1
25	L-Cystine	56-89-3
26	L-Leucine	61-90-5
27	L-Tyrosine	60-18-4
28	N-Acetyl L-Leucine	1188-21-2
29	N-Acetyl L-Cysteine	616-91-1
30	N-Acetyl L-Tyrosine	537-55-3
31	L-Cysteine Base	52-90-4
32	L-Asparagine Monohydrate	5794-13-8
33	L-Asparagine Anhydrous	70-47-3
34	L-Glutamic Acid	56-86-0
35	L-L-Glutamic Acid Hydrochloride	135-15-8
36	Complex amino acid powder	For feed or fertilizer

Inquiry History

8 Inquiries

Country	Product	Purchase Quantity	Date Posted
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
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	500 KG	Aug 22, 2023
India	L Leucine	30.00 TON	Aug 30, 2024

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quality 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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