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.
Pricing & pack sizes
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 |
|---|---|
| SKU | 13831082 |
| 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
Safety Data Sheets (SDS)
Available in PT, IT, FR, ES, DE, EN.
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PT - (13831082) L-TRYPTOPHAN [73-22-3].pdf
SDS · PT · 162 KB
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IT - (13831082) L-TRYPTOPHAN [73-22-3].pdf
SDS · IT · 160 KB
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FR - (13831082) L-TRYPTOPHAN [73-22-3].pdf
SDS · FR · 160 KB
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ES - (13831082) L-TRYPTOPHAN [73-22-3].pdf
SDS · ES · 164 KB
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DE - (13831082) L-TRYPTOPHAN [73-22-3].pdf
SDS · DE · 160 KB
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EN - (13831082) L-TRYPTOPHAN [73-22-3].pdf
SDS · EN · 157 KB
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
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.