Molekula
N-Acetyl-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
N-Acetyl-L-tyrosine is a modified amino acid used in pharmaceuticals and dietary supplements to support cognitive function and neurotransmitter synthesis. It is also reviewed as a cosmetic ingredient, listed as acetyl tyrosine, for personal care formulations, and serves as a biochemical building block in laboratory research. It is a white to off-white crystalline powder with a molecular weight of 223.23 g/mol, a CAS number of 537-55-3, and a molecular formula of C11H13NO4. It is stable at ambient temperatures and classified as a hazardous substance under signal word Danger.
Molekula supplies N-Acetyl-L-tyrosine at >99% purity in 1 g and 25 g packs, from £24.00 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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1 g — £20.00 per pack ex VAT · £24.00 inc. VAT
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25 g — £30.90 per pack ex VAT · £37.08 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 | Solid |
| Melting Point | 152-154J |
| Identification | Conforms to reference |
| Loss on Drying | <0.5% |
| Assay | >99% |
| Residue on Ignition | <0.1% |
| Heavy Metals (Pb) | <10ppm |
| Iron (Fe) | <30ppm |
| Arsenic (As) | <2ppm |
| Tyrosine | <1% |
| Chloromethane | <0.1% |
| Sulphates (SO4)(2-) | <0.1% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 149 - 152 °C |
| Boiling Point | 530 to 533 °C at 760 mmHg |
Source: PubChem CID 68310 (Human Metabolome Database (HMDB))
Identification
| Property | Value |
|---|---|
| SKU | 18176221 |
| CAS Number | 537-55-3 |
| IUPAC Name | (2S)-2-acetamido-3-(4-hydroxyphenyl)propanoic acid |
| EC Number | 208-671-3 |
| Molecular Formula | 4-(HO)C6H4CH2CH(NHCOCH3)CO2H |
| Molecular Weight | 223.23 |
| Exact Mass | 223.0845 |
| SMILES | CC(=O)N[C@@H](CC1=CC=C(C=C1)O)C(=O)O |
| InChIKey | CAHKINHBCWCHCF-JTQLQIEISA-N |
| InChI | InChI=1S/C11H13NO4/c1-7(13)12-10(11(15)16)6-8-2-4-9(14)5-3-8/h2-5,10,14H,6H2,1H3,(H,12,13)(H,15,16)/t10-/m0/s1 |
| PubChem CID | 68310 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2924.29.7790 |
| Tariff Code | 2924297099 |
Safety & GHS
-
Corrosive
GHS05
Hazard statements
- H318 Causes serious eye damage
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+312 IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Portuguese, 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-(acetylamino)-3-(4-hydroxyphenyl)propanoic acid
- ACETYL L-TYROSINE
- Acetyl tyrosine
- L-N-acetyl-Tyrosine
- L-Tyrosine, acetyl-
- L-Tyrosine, N-acetyl-
- N-Acetyltyrosine
- TANOGEN HB
- TYR-EXCEL
- Tyrosine, N-acetyl-, L-
Frequently asked questions
What is N-Acetyl-L-tyrosine used for?
It is primarily used as a building block in peptide synthesis and as a precursor in the production of pharmaceuticals and dietary supplements.
What is the chemical formula and molecular weight of N-Acetyl-L-tyrosine?
The formula is C11H13NO4 and the molecular weight is 223.23 g/mol.
How should N-Acetyl-L-tyrosine be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade is available for N-Acetyl-L-tyrosine?
We offer N-Acetyl-L-tyrosine to a specification with an assay of >99%, loss on drying <0.5% and tyrosine <1%, suitable for laboratory and industrial applications.
Can Molekula supply N-Acetyl-L-tyrosine in bulk?
Yes, we can supply N-Acetyl-L-tyrosine in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with an order of N-Acetyl-L-tyrosine?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Where can I buy N-Acetyl-L-tyrosine?
Directly from Molekula, which lists N-Acetyl-L-tyrosine in 1 g and 25 g packs from £24.00 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.