For formulators developing capsules, tablets, and special nutrition products, Easy Health Inc. supplies Melatonin powder 99% as a white crystalline raw material. CAS No. 73-31-4 M.F. C13H16N2O2 M.W. 232.28 Each batch is analyzed by HPLC, loss on drying 1.0% or less, residual on igniting 0.1% or less. The heavy metals, microbial counts and pathogens are regulated within set limits and shelf life is 2 years. We provide bulk supply, sample and OEM/ODM services with clear papers to enable teams transition from trial to production.
Melatonin powder 99% is the crystalline form of N-acetyl-5-methoxytryptamine, supplied as a raw material for sleep-related supplement formulations. Product name signifies 99% purity. Each batch is HPLC tested.
On this page we only list facts specified in our product specification. Please clarify non-listed items like melting point, solubility, particle size, bulk density with our staff and lot COA before finalizing a formula.

The values below are taken directly from the product specification.
| Parameter | Specification |
|---|---|
| Product Name | Melatonin (99% purity) |
| CAS No. | 73-31-4 |
| EINECS No. | 200-797-7 |
| Molecular Formula | C13H16N2O2 |
| Molecular Weight | 232.28 |
| Appearance | White crystalline powder |
| Testing Method | HPLC |
| Shelf Life | 2 years |
| Loss on Drying | ≤ 1.0% |
| Residue on Ignition | ≤ 0.1% |
| Chloride | ≤ 0.02% |
| Lead (Pb) | ≤ 2.0 mg/kg |
| Arsenic (As) | ≤ 2.0 mg/kg |
| Cadmium (Cd) | ≤ 1.0 mg/kg |
| Mercury (Hg) | ≤ 0.1 mg/kg |
| Total Plate Count | ≤ 1000 cfu/g |
| Yeast & Mold | ≤ 100 cfu/g |
| E. coli | Negative |
| Salmonella | Negative |
Parameters that are not in the table are not specified here. Please ask our team if you need additional data for your formulation.
When you evaluate Melatonin powder 99%, compare the COA of each lot with the specification above. The specification covers these checks:
Batches are traceable. A COA, product specification, and MSDS/SDS are available on request.


Before scale-up, check with our specialists that powder fits your dosage form and target market requirements.
Dietary supplements It may be presented in the form of capsules, tablets and other suitable dosage forms. Obtain particle size and flow information before starting the high-speed equipment.
Functional drinks and meals. Solubility statistics for liquids, please. Before any testing, discuss your dissolving procedure with our R&D personnel.
Formulation development. Samples may be used for quality testing and formulation trials.
The latter depends on the local legislation and intended-use requirements for your market.

Keep in a dark place. Store in sealed, light-resistant containers at regulated room temperature. Shelf life is 2 years as indicated but verify COA or label for lot specific instructions.
Easy Health Inc. offers more than 11 years experience in plant extracts, batch traceability and R&D support. Our team is ready to assist with formula changes, application questions and technical problems.
We provide OEM/ODM services such as ingredient selection, formula formulation, packaging design, labeling and specification customization. Orders may be sent by FedEx, DHL or UPS and transported via air freight, sea freight or special international lines depending on product kind, destination and budget.
MOQ, pricing and lead time are according on quantity, destination and delivery needs. Tell us what you expect to need so we can give you an accurate price. Regulatory papers and/or certificates for this item are available upon request.

Q1. What is powder purity and how is it tested?
A. The product is provided with a purity of 99% and is verified by HPLC. Each lot has a COA testifying to the assay and other quality characteristics.
Q2: What applications does it suit?
A: It may be utilized as a raw ingredient in qualifying formulations like as tablets and capsules. Subject to local legislation and restrictions for intended usage.
Q3: What kind of papers can you supply?
A: We can offer COA, product specification, MSDS/SDS and other applicable quality or regulatory documentation on request.
Q4: May I have a sample to test?
A. Samples may be offered for quality evaluation and formulation experiments. We may talk about quantities of samples and shipment logistics.
Q5: What is your MOQ and pricing?
A: We accept mass orders. MOQ and price are subject on the quantity, destination and delivery terms, so kindly advise your anticipated demand for quote.
Q6: Do you specify melting point, solubility or particle size?
A: These elements are not in the product specification. For confirmation of accessible data for your lot, please contact us.
Q7: What is the storage condition?
A: Protects against light, air, and heat in tightly closed containers at regulated room temperature.
Request a quotation, COA, specification sheet, or sample for Melatonin powder 99% at devin@easyhealthbio.com. Please include your target application, estimated quantity, and destination.