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 2000 · 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 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.
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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.
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 in research grade, 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.
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.