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L-tyrosine

CAS Number
60-18-4
EC Number
200-460-4
Chemical Formula
C9H11NO3
Molecular Weight
181.19 g/mol

Description

L-Tyrosine (CAS 60-18-4 ), commonly abbreviated as Tyr, is a conditionally essential amino acid sourced through both fermentation and chemical synthesis for commercial supply. With FEMA number 3736 , it functions as a bioactive building block in pharmaceutical formulations. The material is used in nutritional products and cosmetic actives. Demand is driven by its role in protein synthesis and its precursor relationship to key metabolic compounds relevant across multiple industries. In dietary supplements and functional nutrition, Tyr is formulated into capsules, powders, and sports nutrition blends targeting cognitive and physical performance support. Pharmaceutical manufacturers use it as an active ingredient and synthesis intermediate. It is utilized in the production of thyroid-related compounds and specialty APIs. In food applications, it contributes to flavor development in aged cheeses and fermented products, recognized under FEMA 3736 for flavoring use. Cosmetic formulators incorporate it into skin-brightening and melanin-modulating topical products. It acts on pigmentation pathways relevant to tone-evening formulations, providing versatile utility for personal care brands. L-Tyrosine is supplied as a white crystalline powder in both food-grade and pharmaceutical-grade specifications. Established grades include USP , BP , and Ph. Eur. , supporting use across regulated pharmaceutical and nutraceutical applications. FCC -grade material is available for food and flavoring use, with bulk supply typically offered in kilogram to metric ton quantities. These standards ensure the highest purity for global distribution and manufacturing. Contact us for supply of L-tyrosine Request Quote

Other Names (Synonyms)

4-hydroxy-L-phenylalanine | (S)-α-amino-4-hydroxybenzenepropanoic acid | (S)-tyrosine | (S)-alpha-amino-4-hydroxybenzenepropanoic acid | (S)-3-(p-hydroxyphenyl)alanine | (S)-2-amino-3-(p-hydroxyphenyl)propionic acid | (2S)-2-azanyl-3-(4-hydroxyphenyl)propanoic acid | (2S)-2-amino-3-(4-hydroxyphenyl)propionic acid | Tyr

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point344 °C
Boiling Point314.29°C (rough estimate)
Density0.01600 mol/L
Flash Point176 °C
AppearanceWhite to off-white powder
ColorWhite to Pale-brown
Odorodorless
Formpowder
Water Solubility0.45 g/L (25 ºC)
Refractive Index-12 ° (C=5, 1mol/L HCl)
pH6.5 (0.1g/l, H2O)
Log P0.38

Safety & Handling

Warning
GHS07· Irritant

Hazard Statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary Statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29225000
WGK (Germany)3