CAS No. 20123-80-2

Appearance	white of almost white hygroscopic powder
Solubility	A) Water Very soluble B) Ethanol Soluble C) Isopropanol Very slightly soluble D) Methylene chloride Practically insoluble
PH	4.0-6.0
Appearance of solution	Clear and colourless
Hydroquinone HPLC	≤ 0.1%
Unspceified substanceHPLC	≤ 0.1%
Total impurities HPLC	≤ 0.2%
Iron	≤ 10ppm
Heavy metals	≤ 10ppm
Water	4.0%-6.0%
Assay	99%-102%

Characteristic	A white of almost white hygroscopic powder
Identification
A .	The specific absorbance at maximum 301nm is 174 to 181
B.	A blue colour and a precipitate are immediately produced
C.	3ml of freshly prepared solution 8 glovs reaction of calcium
Solubility
A) Water	Very soluble
B) Ethanol	Soluble
C)Isopropanol	Very slightly soluble
D)Methylene chloride	Practically insoluble
PH	4.0-6.0
Appearance of solution	Clear and colourless
Hydroquinone HPLC	≤ 0.1%
Unspceified substance HPLC	≤ 0.1%
Total impurities HPLC	≤ 0.2%
Iron	≤ 10ppm
Heavy metals	≤ 10ppm
Water	4.0%-6.0%
Assay	99%-102%

Molecular Formula: 2C6H5O5S.Ca
Molecular Weight: 418.41
Hazard Symbols: Xi
WGKGermany: 3

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Appearance	White or almost white powder
Content	99.0~101.0%
Appearance of solution	Clear and colorless
Acidity	4.5~6.0
Moisture	4.0~6.0%
Heavy Metals	≤ 10ppm
Iron(as Fe	≤ 10ppm
Identification	absorptionmaxima A1221nmand301nm
Related substances	Impurity A≤ 0.1

Purity: 99,0%

Storage conditions room temp
CAS database 20123-80-2 (CAS DataBase Reference)
Chemical properties: white crystalline powder.
Purposes: for microvascular nutrition medicine