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LC3204 Hydroquinone monosulfonic acid potassium salt

for synthesis


Order number Packaging Quantity Price €
AC30204 Plastic bottle 50 g 12.33
AC30204 Plastic bottle 250 g 28.80


Product information
Synonyms 2,5-Dihydroxybenzenesulfonic acid potassium salt
Hill Formula C6H5KO5S
Chemical formula C6H5O5S*K
HS Code 2908 99 10
EC number 244-584-7
Molar mass 228.27 g/mol
CAS number 21799-87-1


Chemical and physical data
Solubility (20 °C) soluble
Melting point 250 – 251 °C
Molar mass 228.27 g/mol
Density 1 g/cm3


Safety information
R Phrase R 36/37/38
Irritating to eyes, respiratory system and skin.
Categories of danger irritant
Hazard Symbol Irritant
Storage class 10 – 13 Other liquids and solids
WGK WGK 2 water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.


Assay (HPLC, area%) ≥ 96 %
Water (K. F.) ≤ 1 %
Identity (IR) passes test


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Loss on drying (105 °C; 3 h)