Customization: | Available |
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CAS No.: | 73-31-4 |
Formula: | C13h16n2o2 |
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Package | carton drum with two plastic bags inside |
Net weight | 25KG/Drum |
Storage | Sealed in cool and dry place to avoid moisture and light |
Shelf life | 2 years when properly stored |
Lead time | 1~3 days after confirmation |
Test Items | Test Standard | |
Appearance | White to off-white crystalline powder. | |
Solubility | Slightly soluble in water, soluble in acet-one ethyl ace-tate and meth-anol |
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Identification | IR | |
UV | ||
HPLC | ||
Chloride and sulfate | ≤0.02% | |
Loss on drying | ≤1.0% | |
Residue on ignition | ≤0.1% | |
Melting point | 117ºC~120ºC | |
Paticle size | ≥98% pass 80 mesh | |
Tap density | ≥0.45g/ml | |
Bulk density | ≥0.35g/ml | |
Residual solvent | Ethanol ≤500ppm | |
Clarity and degree of opalescence of liquid | Clear in the 1% melatonin solution of ethanol or chloro-form | |
Heavy metals | Total | ≤10ppm |
Pb | ≤1ppm | |
As | ≤1ppm | |
Hg | ≤0.1ppm | |
Cd | ≤0.5ppm | |
Related compounds | Individual impurity | ≤0.1% |
Total impurities | ≤1.0% | |
Microorganism | Total plate count | ≤1000cfu/g |
Yeast & Molds | ≤100cfu/g | |
E.Coli | Absent/10g | |
Salmonella | Absent/10g | |
S.aureus | Absent/10g | |
Assay (on dried basis) | 98.5%~101.5% |