L-Tyrosine
4-Hydroxyphenylalanine
- CAS
- 60-18-4
- EC
- 200-460-4
- Sectors
- Personal Care & Cosmetics, Nutraceuticals & Supplements, Pharma & Healthcare
L-Tyrosine (CAS 60-18-4) is a non-essential aromatic amino acid formed from phenylalanine, supplied as a white to off-white crystalline powder that supports neurotransmitter synthesis and is used in pharmaceuticals, nutritional supplements and cosmetics. It is a white crystalline powder with slight sweetness and high stability.
Typical Properties
| Molecular formula | C9H11NO3 |
|---|---|
| Molecular weight | 181.19 g/mol |
| Appearance | White to off-white powder |
| Form | powder |
| Color | White to Pale-brown |
| Odor | odorless |
| Melting point | 344 °C |
| Density | 0.01600 mol/L |
| Water solubility | 0.45 g/L (25 °C) |
| Flash point | 176 °C |
| pH | 6.5 (0.1g/l, H2O) |
| GHS signal word | Warning · Irritant / harmful |
| HS code | 29225000 |
| Grades available | Cosmetic Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
L-Tyrosine
Applications
Used in pharmaceuticals, nutritional supplements, and cosmetics. It supports neurotransmitter synthesis (dopamine, norepinephrine), promotes cognitive performance, and contributes to melanin production in skin formulations.
Safety & Risks
Non-toxic and stable; store in dry conditions to prevent clumping.
Packaging
Supplied in 25 kg PE-lined paper bags or fiber drums. Store cool, dry, and sealed.