Molekula
Melatonin
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
Melatonin is a naturally occurring hormone involved in regulating sleep-wake cycles. It is widely used in supplements and research for sleep disorders and circadian rhythm modulation. Available with CAS number 73-31-4, molecular formula C13H16N2O2, and molecular weight 232.28 g/mol. Stored at -15 to -20 °C. Molekula supplies Melatonin 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 — £46.50 per pack ex VAT · £55.80 inc. VAT
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5 g — £93.30 per pack ex VAT · £111.96 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 | White to off-white crystalline powder |
| Melting Point | 117 °C |
| Water | ≤ 0.3% |
| Heavy metals | ≤ 20ppm |
| Single Impurity | ≤ 0.1% |
| Identification | Conforms to reference |
| Assay | 98.5 - 102.0% |
| Sulphated Ash | ≤ 0.1% |
| Total Impurities | ≤ 1.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | -15 to -20 °C |
| Flash Point | 264 °C |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White-cream to yellowish crystalline powder |
| Melting Point | 117 °C |
| log P (octanol/water) | 1.18 |
Source: PubChem CID 896 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 88168715 |
| CAS Number | 73-31-4 |
| IUPAC Name | N-[2-(5-methoxy-1H-indol-3-yl)ethyl]acetamide |
| EC Number | 200-797-7 |
| Molecular Formula | C13H16N2O2 |
| Molecular Weight | 232.28 |
| Exact Mass | 232.1212 |
| SMILES | CC(=O)NCCC1=CNC2=C1C=C(C=C2)OC |
| InChIKey | DRLFMBDRBRZALE-UHFFFAOYSA-N |
| InChI | InChI=1S/C13H16N2O2/c1-9(16)14-6-5-10-8-15-13-4-3-11(17-2)7-12(10)13/h3-4,7-8,15H,5-6H2,1-2H3,(H,14,16) |
| PubChem CID | 896 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 2937909000 |
| Tariff Code | 2937900000 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, 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
- 5-Methoxy-N-acetyltryptamine
- Acetamide, N-[2-(5-methoxy-1H-indol-3-yl)ethyl]-
- Circadin
- Melapure
- Melatol
- Melatonine
- Melovine
- N-[2-(5-Methoxy-1H-indol-3-yl)ethyl]acetamide
- N-[2-(5-methoxyindol-3-yl)ethyl]acetamide
- N-Acetyl-5-methoxytryptamine
Frequently asked questions
What is melatonin used for?
Melatonin is primarily used to support sleep regulation and circadian rhythm synchronization, commonly in treating insomnia and jet lag.
What is the chemical formula and molecular weight of melatonin?
The chemical formula of melatonin is C13H16N2O2, with a molecular weight of 232.28 g/mol.
How should melatonin be stored?
Melatonin should be stored at temperatures between -15 and -20 °C to maintain stability and prevent degradation.
What grade of melatonin does Molekula supply?
Molekula supplies melatonin in research-grade purity, suitable for laboratory and non-pharmaceutical applications.
Can Molekula supply melatonin in bulk quantities?
Yes, Molekula can supply melatonin in bulk quantities—please contact our sales team for custom order details.
What documentation comes with a melatonin order?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS); additional documentation is available upon request.
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.