二水合间苯三酚
中文通用名 | ：二水合间苯三酚 |
用途类型 | ： |
规格 | ：USP |
HS Code | ： |
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结构式 | ： |
CAS | ：6099-90-7 |
分子式 | ：C6H10O5 |
用途 | ：用于制药、生物试剂、染料，也可用于合成5,7-二羟基黄酮。 |
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% |
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