Molekula
L-Tyrosine (plant origin)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
L-Tyrosine is a non-essential amino acid, made in the human body from L-phenylalanine, and this product is derived from plant sources. It is widely used in nutritional supplements, pharmaceuticals, and sports nutrition to support metabolism, stress response, and neurotransmitter production. Beyond supplements, it serves as a reagent in biochemical research and as a flavoring agent in food formulations. It appears as a white to off-white crystalline powder, soluble in water and alcohol. This plant-based L-Tyrosine has a CAS number of 60-18-4, molecular formula C9H11NO3, and a molecular weight of 181.19 g/mol. It requires no special storage conditions and carries no signal word for hazard classification. Molekula supplies L-Tyrosine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystals or crystalline powder |
| Loss on Drying | ≤0.3% |
| Chloride (Cl-) | ≤0.04% |
| Assay | 98.5~101.5% |
| Residue on Ignition | ≤0.4% |
| Specific optical rotation | -9.8°~ -11.2° |
| Total Impurities | <2.0% |
| Heavy Metals (Pb) | ≤15ppm |
| Iron (Fe) | <30ppm |
| Mercury (Hg) | ≤0.1ppm |
| Any individual impurity | <0.5% |
| Sulphates (SO4)(2-) | ≤0.04% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Fine silky needles |
| Melting Point | 344 °C |
| Solubility (other solvents) | Soluble in water and dilute mineral acid and alkali hydroxide solutions |
| pKa | pKa = 2.2 (at 25 °C) |
| log P (octanol/water) | 2.26 |
Source: PubChem CID 6057 (HSDB, Joint FAO/WHO Expert Committee on Food Additives (JECFA), DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 90025411 |
| CAS Number | 60-18-4 |
| IUPAC Name | (2S)-2-amino-3-(4-hydroxyphenyl)propanoic acid |
| EC Number | 200-460-4 |
| Molecular Formula | C9H11NO3 |
| Molecular Weight | 181.19 |
| Exact Mass | 181.0739 |
| SMILES | C1=CC(=CC=C1C[C@@H](C(=O)O)N)O |
| InChIKey | OUYCCCASQSFEME-QMMMGPOBSA-N |
| InChI | InChI=1S/C9H11NO3/c10-8(9(12)13)5-6-1-3-7(11)4-2-6/h1-4,8,11H,5,10H2,(H,12,13)/t8-/m0/s1 |
| PubChem CID | 6057 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29225040 |
| Tariff Code | 2922500090 |
Safety & GHS
Detailed safety information available in the SDS — see Documents below.
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- (2S)-2-amino-3-(4-hydroxyphenyl)propanoic acid
- (S)-Tyrosine
- 4-Hydroxy-L-phenylalanine
- L-p-Tyrosine
- L-Phenylalanine, 4-hydroxy-
- L-tyrosine
- p-Tyrosine
- tirosina
- tyrosine
- Tyrosinum
Frequently asked questions
What is L-Tyrosine primarily used for?
L-Tyrosine is commonly used as a dietary supplement to support thyroid function, dopamine production, and as a precursor for protein synthesis in the body.
What is the chemical formula and molecular weight of L-Tyrosine?
The chemical formula is C9H11NO3, and the molecular weight is 181.19 g/mol.
How should L-Tyrosine be stored?
Store L-Tyrosine at ambient temperature in a dry, well-ventilated area, away from direct sunlight and moisture.
What grades of L-Tyrosine does Molekula supply?
Molekula supplies food-grade and pharmaceutical-grade L-Tyrosine (plant origin), meeting strict purity and quality standards.
Can Molekula supply L-Tyrosine in bulk quantities?
Yes, Molekula can supply L-Tyrosine in bulk quantities, with flexible packaging options (e.g., drums, bags) to meet customer needs.
What documentation comes with an order of L-Tyrosine?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.