L-Lysine Monohydrochloride Price

Reactions of Carboxyl and Amino Groups (Typical Amino Acid Reactions)

• Neutralization reaction: Reacts with strong bases (e.g., NaOH, KOH) in aqueous solution to form L-lysine alkali metal salts (e.g., L-lysine sodium) and NaCl/KCl; the reaction is stoichiometric (1:2 molar ratio of L-lysine monohydrochloride to NaOH, due to two protonated amino groups).
• Acid-base titration: Exhibitsthree inflection pointsin aqueous titration with NaOH (corresponding to the dissociation of α-COOH, α-NH3⁺, and ε-NH3⁺), which is used for quantitative determination (acid-base titration is the official method for L-lysine monohydrochloride content in pharmacopoeias (USP, EP, ChP) and feed/food standards).
• Peptide bond formation: Reacts with the amino/carboxyl groups of other amino acids under enzymatic (protease) or chemical (e.g., DCC coupling) catalysis to form peptide bonds— the basis for its incorporation into proteins and synthetic peptide formulations.
• N-acylation: The α- and ε-amino groups react with acylating agents (e.g., acetic anhydride, fatty acyl chlorides) under mild alkaline conditions (pH 8–9) to form N-acyl lysine derivatives (e.g., N-acetyl L-lysine)— used in food additives and pharmaceutical intermediates.
• Esterification: The α-carboxyl group reacts with alcohols (e.g., methanol, ethanol) under acidic catalysis (H2SO4, HCl) to form lysine esters— important for synthetic organic chemistry and drug synthesis.

Other supplier products

	Manufacturer	Metabolism and Safety of L-Methionine L-Methionine is absorbed in the small intestine via amino acid transporters and metabolized primarily in the ...
	DL-Alanine	DL-Alanine is generally recognized as safe (GRAS) by regulatory bodies like the U.S. Food and Drug Administration (FDA) and the European Food Safet...
	DL-Methionine	Acid-Base Properties of DL-MethionineDL-Methionine is a neutral amino acid, and its acid-base behavior is derived from the amphoteric nature of the...
	L-Methionine powder	L-Methionine is an essential sulfur-containing amino acid that plays irreplaceable roles in protein synthesis, metabolic regulation, and physiologi...
	High quality L-Phenylalanine	Forms of Phenylalanine: ·L-Phenylalanine: The natural form of phenylalanine found in food and used in supplements. ·DL-Phenylalanine ...

供应产品

Same products

	Deboom Energetic Graphene Oil Additive	卖方: Shanghai Aikebao New Material Technology Co., Ltd	Asgraphene oil additive manufacturerspecializing in automotive solutions, we understand the criti...
	High quality N‑Acetyl‑L‑Tryptophan Powder	卖方: 846340	Basic Information of N‑Acetyl‑L‑Tryptophan 1. Core Identity Chemical Name: N‑α‑Acetyl‑L‑try...
	N-Acetyl-L-Tryptophan	卖方: 846340	Key Points for Storing N‑Acetyl‑L‑Tryptophan (NAT) Short, practical storage rules focusing on moi...
	N-Acetyl-L-Tryptophan Powder Marke quotation	卖方: 846340	Precautions for the Use of N‑Acetyl‑L‑Tryptophan (NAT) Below is a clear, practical summary of pre...
	Wholesale N-Acetyl-L-Tryptophan Powder	卖方: 846340	N‑Acetyl‑L‑Tryptophan as Key Advantages for Food Applications High stability: Withstands processi...