Reaction Scheme: 2 L-ascorbate+O2??2 dehydroascorbate+2H2?O
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Appearance: Light blue lyophilized powder
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Activity: ≥200 U/mg (powder)
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Contaminants:
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Catalase: ≤0.1%
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Phosphatase: ≤0.02%
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Stability: Stable until expiry date when stored at −20°C.
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Origin: Cucurbita sp.
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EC Number: 1.10.3.3
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Molecular Weight: Approximately 140,000
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Optimum pH: 5.5 – 6.5
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Thermal Stability: Stable below 50°C
Applications: Used in pre-treatment reagents of biochemistry autoanalyzer kits (e.g., Glucose, Cholesterol, Uric Acid) to prevent falsely low results caused by Vitamin C (ascorbic acid).
Safety Highlights (MSDS Summary):
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H315 / H319: Causes skin and serious eye irritation.
Transport: Non-hazardous for road (RID/ADR), sea (IMDG), and air (IATA) transport.
Quality Assurance: A specific Certificate of Analysis (CoA) is provided for each batch. Complies with Regulation (EC) No. 1907/2006 (REACH).