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Item | Standard | Result | |||
Appearance | Colourless crystals. | Conformed | |||
Order | Minty Cool | Conformed | |||
Melting point | 41.0℃~44.0℃ | 42℃ | |||
Optical rotation (25℃) | -45°~-51° | -49.56° | |||
Non volatile matter | 0.05pct Max | 0.02pct | |||
Heavy Metal | ≤10ppm | <10ppm | |||
As Content | ≤3ppm | <3ppm | |||
Purity | ≥99% | 99.30% | |||
Conclusion: | This product above complies with the standard of USP42. | ||||







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