Melatonin [CAS 73-31-4] – Pharma product 2026: definition, details, information, sourcing 📊.
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Assay: ≤ 99,63 %
Shelf life: 2 years
Assay: (Tested By HPLC) 98,5 – 101,5 %
Shelf life: 2 years if sealed and properly stored
Regional origin: CN
Test Method: USP 41