Glucosamine

Glucosamine
identification
name glucosamine
synonyms 2-amino-2-deoxy-beta-d-glucopyranose
molecular formula c6h13no5
molecular weight 179.17
cas registry number 3416-24-8
einecs 222-311-2
name glucosamine
synonyms 2-amino-2-deoxy-beta-d-glucopyranose
molecular formula c6h13no5
molecular weight 179.17
cas registry number 3416-24-8
einecs 222-311-2
items standard (enterprise) standard (usp)
description white crystalline powder --
assay 99.00--101.00% 98.0%-102.0%(calculated on the dried basis)
residue on ignition ≤0.10% ≤0.1%
loss on drying ≤0.50% ≤1.0%
ph(5%,20°c) 3.50--4.50 3.0--5.0
chloride ≤17.00% --
iron ≤10ppm --
sulfate -- ≤0.24%
organic volatile impurities -- meets the requirements
heavy metals ≤10ppm ≤10ppm
specific rotation +71.00°--+73.00° +70.0°--+73.0°
microbiological test
total plate count
yeast&mold
salmonella
coliforms max 500/g
max 100/g
negative
negative --
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--
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package and storage preserve in tight,light-resistant containers
expriy date two years .