USD $1.00-1.00 / Kilogram
USD $10.00-10.00 / Gram
USD $20.00-40.00 / Kilogram
USD $3.00-10.00 / Kilogram
USD $9.00-99.00 / Kilogram
USD $9.00-99.00 / Kilogram
USD $9.00-99.00 / Kilogram
USD $9.00-99.00 / Kilogram
USD $9.00-99.00 / Kilogram
phloroglucinol dihydrate
1,3,5-trihydroxybenzene dihydrate; 1,3,5-trihydroxybenzene.2h2o; 1,3,5-benzenetriol dihydrate; phloroglucinol dehydrate; 1,3,5-trihydroxy benzene dihydrate; benzene-1,3,5-triol dihydrate
items |
standard |
---|---|
description |
white or almost white powder |
solubility |
sparing soluble in water, freely soluble in ethanol(96%),practically insoluble in methylene chloride |
identification (a)ir (b)tlc (c) lod |
(a)ir confirms to the crs(2.2.24) (b)the principal spot in the chromatogram obtained with the test solution is similar in position and size to the reference solution (c) between 20.0 to 23.0% |
appearance of solution |
clear and not more intensely than by5 |
ph of solution |
between 4.0 and 6.0 |
releated substances |
impurity a not more than 0.15% impurity d not more than 0.15% impurity e not more than 0.15% impurity k not more than 0.15% impurity l not more than 0.15% impurity i not more than 0.15% unknown impurities not more than 0.1% total impurity not more than 0.3% |
chlorides |
≤200ppm |
sulphates |
≤500ppm |
heavy metals |
≤20ppm |
sulphated ashes |
≤ 0.1% |
assay(on the dried basis) |
99.0%--101.0% |
phloroglucinol dihydrate
1,3,5-trihydroxybenzene dihydrate; 1,3,5-trihydroxybenzene.2h2o; 1,3,5-benzenetriol dihydrate; phloroglucinol dehydrate; 1,3,5-trihydroxy benzene dihydrate; benzene-1,3,5-triol dihydrate
items |
standard |
---|---|
description |
white or almost white powder |
solubility |
sparing soluble in water, freely soluble in ethanol(96%),practically insoluble in methylene chloride |
identification (a)ir (b)tlc (c) lod |
(a)ir confirms to the crs(2.2.24) (b)the principal spot in the chromatogram obtained with the test solution is similar in position and size to the reference solution (c) between 20.0 to 23.0% |
appearance of solution |
clear and not more intensely than by5 |
ph of solution |
between 4.0 and 6.0 |
releated substances |
impurity a not more than 0.15% impurity d not more than 0.15% impurity e not more than 0.15% impurity k not more than 0.15% impurity l not more than 0.15% impurity i not more than 0.15% unknown impurities not more than 0.1% total impurity not more than 0.3% |
chlorides |
≤200ppm |
sulphates |
≤500ppm |
heavy metals |
≤20ppm |
sulphated ashes |
≤ 0.1% |
assay(on the dried basis) |
99.0%--101.0% |