L-Lysine monohydrochloride
CAS 657-27-2
EC 211-519-9
Formula C6H14N2O2.ClH
MW 182.65 g/mol
Amino Acids & Peptides Personal Care & CosmeticsAgriculture & FeedPharmaceuticals & HealthcareFood & Nutrition Antioxidant & StabilizerHumectant & MoisturizingpH Regulation & Buffering
Description
L-Lysine monohydrochloride (CAS 657-27-2) is the hydrochloride salt form of the essential amino acid L-Lysine, commonly referenced as Lysine HCl, L-LYS HCl, or H-Lys-OH HCl. It carries no E-code designation and is distinct from free-base lysine in its improved solubility and handling stability.
In personal care formulations, Lysine HCl functions as a hair and skin conditioner by binding to negatively charged keratin sites, improving texture and moisture retention. In food and feed applications, it corrects lysine deficiency in cereal-based diets, and in pharmaceutical buffering systems it regulates solution pH through its dual amine groups.
Lysine HCl is supplied in feed-grade, food-grade (FCC), and pharmaceutical-grade (Ph.Eur.) specifications to meet sector-specific compliance requirements. It falls under REACH registration obligations within the EU (EC 211-519-9, HS 2922.41.00) and is available in 25 kg bags or bulk quantities.
In personal care formulations, Lysine HCl functions as a hair and skin conditioner by binding to negatively charged keratin sites, improving texture and moisture retention. In food and feed applications, it corrects lysine deficiency in cereal-based diets, and in pharmaceutical buffering systems it regulates solution pH through its dual amine groups.
Lysine HCl is supplied in feed-grade, food-grade (FCC), and pharmaceutical-grade (Ph.Eur.) specifications to meet sector-specific compliance requirements. It falls under REACH registration obligations within the EU (EC 211-519-9, HS 2922.41.00) and is available in 25 kg bags or bulk quantities.
Physical Properties
| Melting Point | 263 °C (decomp) |
| Density | 1.28 g/cm3 (20℃) |
| Appearance | White crystalline powder |
| Color | White to Off-white |
| Odor | odorless |
| Form | powder |
| Water Solubility | 65 g/100 mL (20 ºC) |
| Vapor Pressure | <1 Pa (20 °C) |
| pH | 5.5-6.0 (100g/l, H2O, 20℃) |
| Log P | -1.036 (est) |
Trade & Regulatory
| HS Code | 29224100 |
| UN Number | 1789 |
| ADR Class | 8 |
| Packing Group | III |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 2 |
Other Names
Lysine Hydrochloride(S)-2,6-Diaminohexanoic acid monohydrochlorideL-GenDarvylLysionLyamineL-LYS HCLLysine HClL-LYSINE HCL
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Raw Materials
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