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L-Isoleucine

L-Isoleucine

CAS No.: 73-32-5
Molecular Formula: C6H13NO2
Molecular Weight: 131.17
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product description

Crystalline leaflets or a white, crystalline powder having a bitter taste. It is soluble in 25 parts of water, slightly soluble in hot alcohol, and soluble in diluted mineral acids and in alkaline solutions. It sublimes at between 168°C and 170°C, and melts with decomposition at about 284°C. The pH of a 1 in 100 solution is between 5.5 and 7.0.

Absolute: The absolute is prepared by alcoholic extraction of the concrete in approximately 55 to 60% yields. The absolute consists of a semisolid, olive-green mass with a characteristic ambergris odor.


Chemical Properties

PropertyValue

Melting point

288 °C (dec.) (lit.)

Alpha

41 º (c=4, 6N HCl)

Boiling point

225.8±23.0 °C(Predicted)

Bulk density

470kg/m3

Density

1.2930 (estimate)

FEMA

4675 | L-ISOLEUCINE

Refractive index

40.5 ° (C=4, 6mol/L HCl)

Fp

168-170°C

Storage temp.

Store below +30°C.

Solubility

1 M HCl: 50 mg/mL

Form

Powder

Pka

2.32, 9.76(at 25℃)

Color

White to Off-white

Odor

odorless

PH

5.5-6.5 (40g/l, H2O, 20℃)

Biological source

Synthetic

Optical Rotation

[α]20/D +41.0±1°, c = 5% in 6 M HCl

Water Solubility

41.2 g/L (50 ºC)

λmax

λ: 260 nm Amax: 0.07λ: 280 nm Amax: 0.05

JECFA Number

2118

Merck

14,5179

Sublimation

168-170 ºC

BRN

1721792

InChIKey

AGPKZVBTJJNPAG-WHFBIAKZSA-N

LogP

0.80

CAS DataBase Reference

73-32-5(CAS DataBase Reference)

NIST Chemistry Reference

Isoleucine(73-32-5)

EPA Substance Registry System

L-Isoleucine (73-32-5)


Safety Information

PropertyValue

Hazard Codes

Xn

Risk Statements

40

Safety Statements

24/25-36-22

WGK Germany

3

RTECS

NR4705000

TSCA

Yes

HS Code

29224995

Hazardous Substances Data

73-32-5(Hazardous Substances Data)

Toxicity

LD50 intraperitoneal in rat: 6822mg/kg


Product Usage

L-Isoleucine is an essential branched-chain amino acid (BCAA) that plays a critical role in muscle metabolism, immune function, and hemoglobin synthesis. In the sports nutrition industry, it is a key component of BCAA formulations, working synergistically with leucine and valine to promote muscle recovery after intense exercise and prevent muscle breakdown. The pharmaceutical sector utilizes high-purity L-Isoleucine as a vital ingredient in parenteral and enteral nutrition infusions, providing essential metabolic support for patients recovering from trauma or surgery. In food science, it is used as a nutritional fortifier and flavor enhancer in specialized diets. Additionally, it serves as a high-value chemical intermediate in the synthesis of specialized peptides and surfactants. In the animal feed industry, it is increasingly used to optimize the amino acid profile in livestock diets to ensure healthy growth and efficient feed conversion.

Factory Showcase

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Quality Control Lab

实验室

Shipping And Transportation

Delivery Time

Inventory 2-3 working days New manufacturing 7-10 working days

Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
We only provide highest quality goods available, accompanied by after support!

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FAQ

Q:What about your price? 
A:Our price is very competitive because we are a factory. Feel free to contact us if you are interested in our products. 

 

Q:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.

 

Q:How about the delivery time? 
A:Within 3-15 days after we confirm you requirement. 

 

Q:What is your terms of payment ?
A:T/T, Cash, Western Union are all accepted if you have other payment,please contact me. 

 

Q: Do you provide samples? 
A:Yes,we could offer the sample for you to test but please pay freight fee.

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