Molekula
L-Tyrosine
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 involved in the synthesis of neurotransmitters and thyroid hormones. It is used in nutritional supplements and biochemical research. Available with CAS number 60-18-4, molecular formula C9H11NO3, and molecular weight 181.19 g/mol. Stored at ambient temperature. 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
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
-
100 g — £26.30 per pack ex VAT · £31.56 inc. VAT
-
1 kg — £74.80 per pack ex VAT · £89.76 inc. VAT
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 to off-white powder |
| Specific rotation | -9.8 to -11.2° |
| Heavy metals | 15 ppm max |
| Loss on Drying | 0.3% max |
| Chloride (Cl-) | 0.04% max |
| Assay | 98% min |
| Residue on Ignition | 0.4% max |
| Individual impurity | 0.5% max |
| Total Impurities | 0.5% max |
| Iron (Fe) | 30 ppm max |
| Identification (IR) | Conforms to Reference |
| Sulphates (SO4)(2-) | 0.04% max |
| Chromotograhic Purity | Conforms |
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 | 12097155 |
| 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
- beta-(p-Hydroxyphenyl)alanine
- L-p-Tyrosine
- L-Phenylalanine, 4-hydroxy-
- p-Tyrosine
- tirosina
- tyrosine
- Tyrosinum
Frequently asked questions
What is L-Tyrosine used for?
L-Tyrosine is used as a dietary supplement and in the synthesis of neurotransmitters like dopamine and norepinephrine. It is also used in research and pharmaceutical applications.
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?
L-Tyrosine should be stored at ambient temperature, protected from moisture and light.
What grade of L-Tyrosine is available?
Molekula offers L-Tyrosine in research grade, suitable for laboratory and industrial applications.
Can Molekula supply L-Tyrosine in bulk?
Yes, Molekula can supply L-Tyrosine in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with an order of L-Tyrosine?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.