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Appearance
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White or almost white, amorphous or crystalline powder. Freely soluble in water and in propylene glycol.
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Identification |
IR
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Same absorption bands as USP Hydroxypropyl Betadex RS
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Clarity of solution
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Positive
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Molar Substitution
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0.40 ~ 1.50
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Betadex
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≤1.5%
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Propylene Glycol
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≤2.5%
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Any other Single impurity
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≤0.25%
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Total impurity Excluding Betadex and Propylene Glycol
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≤1.0% |
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Propylene Oxide
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≤1ppm
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Loss on drying
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≤10.0%
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Clarity of Solution
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1.0g/2ml water solution is clear and transparent
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Conductivity
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≤200µS/cm
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The total aerobic microbial count
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≤1000cfu/g
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The total combined moulds and yeasts count
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≤100cfu/g |
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