Molekula
L-Tyrosine
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · 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 at 98% min purity in 100 g and 1 kg packs, from £31.56 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 7 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
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.
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100 g — £26.30 per pack ex VAT · £31.56 inc. VAT
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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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
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 with an assay of 98% min, total impurities of 0.5% max and heavy metals of 15 ppm max, 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.
Where can I buy L-Tyrosine?
Directly from Molekula, which lists L-Tyrosine in 100 g and 1 kg packs from £31.56 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
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.