 Home > Biochemical Engineering > Amino Acids and Proteins > L-Isoleucine for Sale > wanwei Wholesale L Isoleucine Food Additive Feed Additive L Isoleucine Food Grade CAS 73-32-5

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wanwei Wholesale L Isoleucine Food Additive Feed Additive L Isoleucine Food Grade CAS 73-32-5

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Unit Price:

$10/KG FOB

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CAS No.:

73-32-5

Grade:

Food Grade

Content:

99%

Port:

shanghai

Brand:

wanwei

Packaging:

25KG/Drum

Price valid (until):

2028-03-31

Contact Supplier

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Changsha Wanwei Technology Co., Ltd.

Company Type:

Trader

Location:

China

Qualification:

Main Products:

Tirzepatide,Retatrutide,Semaglutide

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Product Description
Seller Information
Inquiry History

Description

Product Detail

L-Isoleucine is an essential amino acid (not synthesized by humans, requiring dietary intake) and a member of the branched-chain amino acids (BCAAs), alongside leucine and valine. Its chemical structure features a branched carbon chain (methyl group on the α-carbon), with the formula C6H13NO2.
Physiological Roles:
Protein Synthesis: Critical for muscle repair and growth, particularly post-exercise recovery.
Energy Production: Catabolized in muscles during prolonged exercise or fasting to generate ATP.
Blood Sugar Regulation: Enhances glucose uptake and insulin secretion, stabilizing blood glucose levels.
Immune Function: Supports antibody and hemoglobin production.
Dietary Sources:
Meat (chicken, beef), fish (tuna), eggs, soybeans, nuts (almonds, cashews), dairy products (cheese), and whole grains.
Applications:
Sports Nutrition: Supplements to reduce muscle breakdown and fatigue.
Healthcare: Used in post-surgery recovery, liver disease, or malnutrition.
Industry: Raw material in biopharmaceuticals and fermentation.
Deficiency Symptoms:
Muscle wasting, fatigue, dizziness, and weakened immunity.

Items	Specifications
Identification of the substance	L-Isoleucine ≥98,5 %, USP, for biochemistry
Article number	3922
Registration number (REACH)	01-2120743506-54-xxxx
EC number	200-798-2
CAS number	73-32-5

Detailed Photos

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Company Profile

Changsha Wanwei, headquartered in Changsha, China, is aiming to be a global player in chemical trading and integrated solutions.

Specializing in Pharmaceutical intermediates, Agrochemical intermediates, Fine chemicals, Herbal extracts and Cosmetic ingredients, we deliver end-to-end services spanning sourcing, supply chain optimization, customized synthesis, cost management, and quality assurance, with all stage support from sample, pilot, registration and commercial

Our mission is to empower clients worldwide with agile, sustainable, and value-driven partnerships in the ever-evolving chemical industry.

Competitive Advantages
Expert Team: International team of chemical engineers, trading specialists and supply chain professionals
Quality Commitment: Rigorous supplier selection and ISO-certified quality management systems
Sustainable Development: Partnering with eco-friendly manufacturers to promote green chemistry
Vision & Mission
Driven by the philosophy of “Chemistry Connects the Future,” Changsha Wanwei strives to be a pioneering force in the global chemical sector. By bridging innovation, efficiency, and sustainability, we aim to build long-term partnerships that redefine industry standards and foster a greener, smarter chemical ecosystem.

Global Reach, Local Expertise – Changsha Wanwei is your trusted partner for chemical excellence.

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FAQ

1.How to get in touch with us?

You can chat with us by Trademanager,WhatsApp or simply giving us an email, a phone call. All our contacts information can be found from our website.

2.Are you a manufacturer or trade company?

We are a professional manufacturer.

3.Can I get a sample?

Yes, free sample can be provided, but shipping cost is covered by your side.

4.What's your MOQ?

It is based on the different product. Some are 1g while some are 1 kg. Please be free to consult our salesman.

5.When can I get the quotation?
We usually quote within 1 hours after we get your inquiry. If it's a urgent order you can call us or mention it in your email subject, and we can take it as priority.

6.Is there any discount?
Yes, some products are applied for discount, but it depends on the quantity.

7.Can you do OEM for me?
Yes,we accept OEM orders, just contact us and give us your requirement. We will offer you a reasonable price and make samples ASAP.

Please feel free to contact us if you have any needs！

Certificates

Basic Info

Product Name:

L-Isoleucine

Other Name:

L-Isoleucine;Isoleucine,L-;Isoleucine;erythro-L-Isoleucine;2-Amino-3-methylvaleric acid;(2S,3S)-α-Amino-β-methylvaleric acid;L-(+)-Isoleucine;[S-(R*,R*)]-2-Amino-3-methylpentanoic acid;(S)-Isoleucine;(2S,3S)-α-Amino-β-methyl-n-valeric acid;(2S,3S)-2-Amino-3-methylpentanoic acid;(S,S)-Isoleucine;2S,3S-Isoleucine;L-Norvaline,3-methyl-,erythro-;L-Ile;Pentanoic acid,2-amino-3-methyl-,(2S,3S)-;NSC 46708;Isoleucine,(2S,3ξ)-;7004-09-3;410078-51-2;501028-75-7;807611-99-0;959215-79-3;1050482-26-2;1131911-83-5;1186126-44-2;1431840-86-6;2012595-46-7;2110474-15-0;2230755-14-1

CAS No.:

73-32-5

Molecular Formula:

C6H13NO2

InChIKeys:

InChIKey=AGPKZVBTJJNPAG-WHFBIAKZSA-N

Molecular Weight:

131.17

Exact Mass:

131.17

BRN:

1721792

EC Number:

200-798-2

HScode:

29224995

Categories:

Amino Acids and Proteins

Characteristics

PSA:

63.3

XLogP3:

-1.7

Appearance:

White to Off-white powder

Density:

1.0±0.1 g/cm3

Melting Point:

285.5 °C (decomp)

Boiling Point:

Sublimes at 168-170 deg C

Flash Point:

168-170°C

Refractive Index:

1.463

Water Solubility:

H2O: 41.2 g/L (50 ºC);1 M HCl: 50 mg/mL

Storage Conditions:

Store at RT.

Vapor Pressure:

6.85X10-9 mm Hg at 25 deg C (est)

Toxicity:

LD50 intraperitoneal in rat: 6822mg/kg

Specific rotation:

41 º (c=4, 6N HCl)

Taste:

Bitter

PKA:

2.37(at 0 °C)

See More L-Isoleucine 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-Isoleucine Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Tirzepatide,Retatrutide,Semaglutide

Location:
No. 2302, Changqing Road, Gaoyuan Community, Laodaohe Sub-district, Kaifu District, Changsha City, Hunan Province

Payment Terms:
TT against copy of documents,D/P,L/C,D/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:
101-200

Year of Establishment:
2023

Changsha Wanwei Technology Co., Ltd. has been deeply engaged in the biopharmaceutical industry for over 20 years and stands as a global leader in the metabolic disease drug sector. Leveraging its integrated end-to-end capabilities covering "R&D, production, and commercialization" as well as profound industry expertise, the company firmly ranks among the top tier of the global biopharmaceutical industry. Its core products include multiple key varieties such as Semaglutide, Tirzepatide, Retatrutide, and Cagrilintide.
Eighty percent of the members in the company's core team possess over 15 years of experience in metabolic drug R&D. Many of them have led the launch of internationally blockbuster antidiabetic drugs. The team has successfully facilitated the approval of 12 innovative drugs, among which 5 have become top 50 best-selling prescription drugs globally. This has enabled the company to establish an irreplicable technical and experiential barrier in fields such as peptide drug molecular modification and long-acting formulation development.
On the R&D front, the company has built four national-level technology platforms, including peptide molecular design and oral formulation innovation, and holds more than 300 authorized patents. Its drug R&D cycle is 30% shorter than the industry average. On the production side, it owns the world's largest intelligent base for peptide drugs, with an annual production capacity of 500 kilograms. The base complies with the triple GMP standards of China, the United States, and the European Union, and achieves a 90% self-sufficiency rate in key raw materials, ensuring stable supply to over 120 countries. Additionally, the company has passed the unannounced inspections by the FDA (U.S. Food and Drug Administration) and EMA (European Medicines Agency) for 10 consecutive years.
Currently, Semaglutide has overcome the challenge of low oral bioavailability, achieving global sales of over 15 billion US dollars within 3 years of its launch. Tirzepatide surpassed 8 billion US dollars in sales in its first year on the market. Retatrutide has entered Phase III clinical trials, while the combination therapy of Cagrilintide is in Phase II clinical development. All these products demonstrate revolutionary therapeutic value. Looking ahead, the company will invest 25% of its annual revenue in R&D, focusing on the fields of metabolism and cardiovascular diseases, and is committed to becoming a global innovation benchmark in the biopharmaceutical industry.

Inquiry History

7 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	L-Iso leusine	25 KG	Apr 21, 2025
India	L-Isoleucine	1 MT	Apr 23, 2025
Spain	L-Isoleucine	1 40' Fcl	Oct 17, 2023
India	L-Isoleucine 98% HPLC	30 KG	Aug 4, 2023
United Kingdom	ISO Lecine	50.00 MT	Sep 4, 2025
Greece	ISOLEUCINE (Ile, I)	700.00 KG	Sep 25, 2025
Russia	L-Isoleucine	25 KG	Sep 24, 2024

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