Molekula
L-Tryptophan
L-Tryptophan is an essential amino acid used in nutritional supplements, pharmaceuticals, and research. It serves as a precursor to serotonin and melatonin, supporting mood and sleep regulation. Available in powder form, it has a CAS number of 73-22-3, molecular formula C11H12N2O2, and a molecular weight of 204.23 g/mol. Stable at ambient storage conditions. Molekula supplies L-Tryptophan from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
L-Tryptophan is an essential amino acid used in nutritional supplements, pharmaceuticals, and research. It serves as a precursor to serotonin and melatonin, supporting mood and sleep regulation. Available in powder form, it has a CAS number of 73-22-3, molecular formula C11H12N2O2, and a molecular weight of 204.23 g/mol. Stable at ambient storage conditions. Molekula supplies L-Tryptophan from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | White Powder |
| Specific rotation | -29.4 to -32.8 |
| Identification | Conforms to reference |
| pH | 5.5 to 7.0 |
| Loss on Drying | ≤ 0.3% |
| Specification | Conforms to USP specification |
| Chloride (Cl) | ≤ 0.05% |
| Assay | ≥ 98.5% |
| Residue on Ignition | ≤ 0.1% |
| Iron (Fe) | ≤ 0.003% |
| Lead (Pb) | ≤ 0.0015% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Shelf Life | 24 months |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| CAS Number | 73-22-3 |
| Molecular Formula | C11H12N2O2 |
| Molecular Weight | 204.23 |
| SMILES | C1=CC=C2C(=C1)C(=CN2)C[C@@H](C(=O)O)N |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29339975 |
| Tariff Code | 2933998090 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
For research and industrial use only
Documents
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.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is L-Tryptophan used for?
L-Tryptophan is primarily used as a dietary supplement and in the synthesis of serotonin and melatonin, supporting mood regulation and sleep cycles.
What is the chemical formula and molecular weight of L-Tryptophan?
The formula is C11H12N2O2 with a molecular weight of 204.23 g/mol.
How should L-Tryptophan be stored?
Store at ambient temperature, protected from moisture and light.
What grade of L-Tryptophan does Molekula supply?
Molekula supplies L-Tryptophan in pharmaceutical and research grade.
Can Molekula supply L-Tryptophan in bulk?
Yes, Molekula can supply L-Tryptophan in bulk quantities; please contact sales for details.
What documentation comes with an order of L-Tryptophan?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS).
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.