L-Lysine

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L-Lysine Specification

Molecular Weight
182.65 g/mol

Smell
Odorless

Taste
Slightly Sweet

Refractive Rate
Not Available

HS Code
29224100

Molecular Formula
C6H14N2O2HCl

Structural Formula
NH2(CH2)4CH(NH2)COOHHCl

Boiling point
Not Available

Classification
Amino Acid

Grade
Feed Grade, Food Grade

Purity
99% Min

Application
Food Additive, Feed Additive, Pharmaceutical

Appearance
White Crystalline Powder

Melting Point
263C (decomposes)

Density
Gram per cubic centimeter(g/cm3)

Solubility
Freely soluble in water

Raw Material
Corn, Starch

About L-Lysine

Name: L-Lysine HCl; L-Lysine hydrochloride

Synonyms: (S)-2,6-Diaminohexanoic acid monohydrochloride

Molecular Formula: C₆H₁₄N₂O₂·HCl

Molecular Weight: 182.65

CAS Number: 10098-89-2

EINECS: 233-234-9

L-Lysine is a necessary building block for all protein in the body. L-Lysine plays a major role in calcium absorption; building muscle protein; recovering from surgery or sports injuries; and the body's production of hormones, enzymes, and antibodies.

L-Lysine HCl (AJI92)

Item	Specification
Appearance	White powder
Specific rotation []_D²⁰	+20.7^o ~ +21.5^o
Chloride (Cl)	19.12 ~ 19.51%
Ammonium (NH₄)	0.020% Max.
Sulfate (SO₄)	0.020% Max.
Iron (Fe)	10ppm Max.
Heavy metals (Pb)	10ppm Max.
Arsenic (As₂O₃)	1ppm Max.
Other Amino Acids	Meets the requirements
Loss on drying	0.40% Max.
Residue on ignition	0.10% Max.
Assay	99.0 ~ 100.5%
pH	5.0 ~ 6.0
Pyrogen	Free

L-Lysine HCl (USP24)

Item	Specification
Description	White granular powder
Identification	Matches standard
Foreign materials	5spots Max.
Assay	98.5 ~ 101.5%
Specific optical rotation[]_D²⁰	+20.5^o ~ +21.4^o
Heavy metals (Pb)	15ppm Max.
Loss on drying	0.4% Max.
Residue on ignition	0.1% Max.
Chloride (Cl)	19.0 ~ 19.6%
Sulfate (SO₄)	0.03% Max.
Iron (Fe)	30ppm Max.
Organic volatile impurities	Meets the requirements

L-Lysine HCL (Feed Grade)

Item	Specification
Appearance	Off white brownish powder
Assay	98.5% Min. (on dried basis)
Specific rotation	+18 ~ +21.5^o
Loss on drying	1.0% Max.
Residue on ignition	0.3% Max.
NH₄+	0.04% Max.
Heavy metals (as Pb)	30ppm Max.
Arsenic	2ppm Max.

Applications in Food, Feed, and Pharmaceuticals

L-Lysines extensive application is attributed to its high purity and solubility, making it highly effective as a nutritional additive in animal feed, food products, and certain pharmaceutical formulations. Its ability to support protein synthesis and growth makes it indispensable in livestock nutrition, while its nutritional value enhances food products globally.

Quality Assurance and Physical Properties

Strictly manufactured with a minimum 99% purity from quality corn or starch, L-Lysine appears as an odorless, slightly sweet, white crystalline powder. Its solubility in water facilitates easy integration in both dry and liquid formulations. The confirmed melting point of 263C (decomposes) reflects its stability during processing and storage.

FAQs of L-Lysine:

Q: How is L-Lysine manufactured and what raw materials are used?

A: L-Lysine is primarily produced through fermentation processes utilizing corn or starch as the main raw materials. This method ensures a high purity level, making the amino acid suitable for food and feed applications.

Q: What benefits does L-Lysine provide as a food or feed additive?

A: L-Lysine is an essential amino acid that supports protein synthesis and overall growth. In animal feed, it promotes healthy development and improves nutritional efficiency, while in foods, it enriches amino acid profiles, helping meet dietary requirements.

Q: When should L-Lysine be used in animal nutrition?

A: It should be incorporated when animals diets are deficient in lysine, particularly in feed for poultry, swine, and cattle, to enhance growth rates, muscle development, and feed conversion efficiency.

Q: How can L-Lysine be incorporated into food or feed products?

A: Thanks to its high solubility in water and crystalline powder form, L-Lysine can be easily mixed into premixes, concentrates, or directly into feed and food formulations to boost their nutritional value.

Q: What is the typical appearance and taste profile of L-Lysine?

A: L-Lysine is a white, odorless crystalline powder with a slightly sweet taste. These characteristics make it unobtrusive when added to foods or feeds.

Q: Where is L-Lysine commonly produced and exported from?

A: L-Lysine is extensively manufactured and supplied by producers in China, recognized globally for stringent quality standards and reliable supply chains.

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