Molekula
5-Hydroxy-L-tryptophan
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
5-Hydroxy-L-tryptophan (5-HTP) is a naturally occurring amino acid and chemical precursor to serotonin, widely used as a dietary supplement to support mood regulation, sleep, and appetite control. It is also employed in pharmaceutical and research applications for its role in neurotransmitter synthesis. This chemical has a CAS number of 4350-09-8, with the molecular formula C11H12N2O3 and a molecular weight of 220.23. It requires storage between 2 to 8°C and carries a Danger signal word due to its potential health risks if misused. Molekula supplies 5-Hydroxy-L-tryptophan 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.
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Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White to faint beige powder |
| Water | ≤ 6.0% |
| Specific rotation | [(20/D) c= 1 in water] -35.0 - -31.0 deg |
| Purity (TLC) | ≥98% |
| Identification (IR) | Conforms to structure |
| Titration with HCIO4 | ≥98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 293 - 298 °C |
Source: PubChem CID 439280 (Human Metabolome Database (HMDB))
Identification
| Property | Value |
|---|---|
| SKU | 90034722 |
| CAS Number | 4350-09-8 |
| IUPAC Name | (2S)-2-amino-3-(5-hydroxy-1H-indol-3-yl)propanoic acid |
| EC Number | 224-411-1 |
| Molecular Formula | C11H12N2O3 |
| Molecular Weight | 220.23 |
| Exact Mass | 220.0848 |
| SMILES | C1=CC2=C(C=C1O)C(=CN2)C[C@@H](C(=O)O)N |
| InChIKey | LDCYZAJDBXYCGN-VIFPVBQESA-N |
| InChI | InChI=1S/C11H12N2O3/c12-9(11(15)16)3-6-5-13-10-2-1-7(14)4-8(6)10/h1-2,4-5,9,13-14H,3,12H2,(H,15,16)/t9-/m0/s1 |
| PubChem CID | 439280 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2933997500 |
| Tariff Code | 2933998090 |
Safety & GHS
-
Toxic
GHS06
Hazard statements
- H301 Toxic if swallowed
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P330 Rinse mouth
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
- Levothym
- Levotinine
- oxitriptan
- Oxitriptano
- Oxyfan
- Pretonine
- Quietim
- Serotonyl
- Telesol
- Triptene
Frequently asked questions
What is 5-Hydroxy-L-tryptophan (5-HTP) commonly used for?
5-HTP is primarily used as a dietary supplement to support serotonin production, aiding in mood regulation, sleep, and appetite control. It is also researched for potential benefits in migraines and fibromyalgia.
What is the chemical formula and molecular weight of 5-HTP?
The chemical formula is C₁₁H₁₂N₂O₃, and the molecular weight is 220.23 g/mol.
How should 5-Hydroxy-L-tryptophan be stored?
Store 5-HTP at 2–8°C in a dry, well-ventilated area, away from direct sunlight and moisture.
What grades or purity levels of 5-HTP does Molekula supply?
Molekula supplies 5-HTP with a purity of at least 98% by TLC and at least 98% by titration with HClO4, suitable for dietary supplements and research applications.
Can Molekula supply 5-Hydroxy-L-tryptophan in bulk quantities?
Yes, Molekula offers bulk packaging (e.g., 1 kg, 5 kg, 25 kg) for 5-HTP, with flexible options based on customer requirements.
What documentation comes with a 5-HTP order from Molekula?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability and compliance.
Is 5-Hydroxy-L-tryptophan dangerous goods for shipping?
Yes. 5-Hydroxy-L-tryptophan ships as dangerous goods: UN2811, class 6.1, packing group III.
Ready to order or need a custom pack?
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