L-(-)-Tyrosine
CAS 60-18-4
EC 200-460-4
Formula C9H11NO3
MW 181.19 g/mol
Amino Acids & Peptides Personal Care & CosmeticsFood & NutritionPharmaceuticals & Healthcare Antioxidant & StabilizerHumectant & MoisturizingSurface Modification & Wetting
Description
L-(-)-Tyrosine (CAS 60-18-4) is a non-essential aromatic amino acid commercially identified under the abbreviations H-TYR-OH and H-L-TYR-OH, and listed under FEMA 3736 for flavour applications. It carries no assigned E-code. It is the biologically active L-enantiomer used across personal care, food, and pharmaceutical manufacturing.
In cosmetic formulations, tyrosine functions as a skin and hair conditioner by supporting keratin structure and moisture retention at the cellular level. As a humectant, it attracts and binds water within the stratum corneum. Its phenolic hydroxyl group also contributes antioxidant activity, scavenging free radicals to protect formulation integrity and skin tissue.
L-(-)-Tyrosine is available in pharmaceutical grade meeting Ph.Eur. and USP specifications, and in food grade conforming to FCC standards. The substance is registered under REACH (EC 200-460-4) and supplied as a white to off-white powder, typically in 25 kg bags or fibre drums. HS code 29225000 applies for import classification.
In cosmetic formulations, tyrosine functions as a skin and hair conditioner by supporting keratin structure and moisture retention at the cellular level. As a humectant, it attracts and binds water within the stratum corneum. Its phenolic hydroxyl group also contributes antioxidant activity, scavenging free radicals to protect formulation integrity and skin tissue.
L-(-)-Tyrosine is available in pharmaceutical grade meeting Ph.Eur. and USP specifications, and in food grade conforming to FCC standards. The substance is registered under REACH (EC 200-460-4) and supplied as a white to off-white powder, typically in 25 kg bags or fibre drums. HS code 29225000 applies for import classification.
Physical Properties
| Melting Point | 344 °C |
| Boiling Point | 314.29°C (rough estimate) |
| Density | 0.01600 mol/L |
| Flash Point | 176 °C |
| Appearance | White to off-white powder |
| Color | White to Pale-brown |
| Odor | odorless |
| Form | powder |
| Water Solubility | 0.45 g/L (25 ºC) |
| Refractive Index | -12 ° (C=5, 1mol/L HCl) |
| pH | 6.5 (0.1g/l, H2O) |
| Log P | 0.38 |
Safety & Handling (Learn More)
Warning GHS07
H
H315H319H335
P
P261P264P271P280P319P321P405P501P264+P265P302+P352P304+P340P332+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 29225000 |
| WGK (Germany) | 3 |
Other Names
(2S)-2-amino-3-(4-hydroxyphenyl)propanoic acidTyrtyrosineL-TyrosineH-TYR-OHp-TyrosineH-L-TYR-OH
Related Products
Raw Materials
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