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8.00691 EMD Millipore

5-Sulfosalicylic acid dihydrate

5-Sulfosalicylic acid dihydrate for synthesis. CAS 5965-83-3, pH < - 0.5 (200 g/l, H₂O, 20 °C)., for synthesis

Synonym: Salicylsulfonic acid

  • CAS Number 5965-83-3

  • Linear Formula C₇H₆O₆S * 2 H₂O

  • Molecular Weight 254.22 g/mol

  •  EC Number 202-555-6



Related Categories Biochemicals and Reagents, Building Blocks, Chemical Synthesis, Organic Building Blocks, Sulfur Compounds More...
packaging   100 g in Plastic bottle (8006910100)
  250 g in Plastic bottle (8006910250)
density   0.8 g/cm3 (20 °C)
flash point   150 °C
mp   105 - 109 °C (anhydrous substance)
pH   <0.5 (200 g/l, H₂O, 20 °C)
bulk density   310 kg/m3
LD 50 oral   LD50 Rat 1850 mg/kg
shipped in   ambient
storage temp.   Store below +30°C.
specifications   Assay (acidimetric): ≥ 99,0 %(m)
  Heavy metals (as Pb): ≤ 0,001 %(m)
  Identity (IR): conforms

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Safety Information

HS Code 
2918 29 00
Hazard Statement(s) 
H302: Harmful if swallowed.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
Precautionary Statement(s) 
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Storage class 
8A Combustible, corrosive hazardous materials
WGK 2 water endangering
Liquid organic acids or solutions should be diluted, if necessary, and carefully neutralized with sodium hydrogen carbonate (Cat. No. 106323) or with sodium hydroxide (Cat. No 106462). Before filling into container D, check the pH with pH universal indicator strips (Cat. No. 109535).
Hazard Pictogram(s) 
GHS07  GHS07
Hazard Symbols 
Harmful  Harmful
Declaration (railroad and road) ADR, RID 
UN 2585 , 8, III
Declaration (transport by air) IATA-DGR 
UN 2585 , 8, III
Declaration (transport by sea) IMDG-Code 
UN 2585 , 8, III, Segregation Group: 1 (Acids)
Categories of danger 
harmful, irritant
R Phrase 
R 22-36/38
Harmful if swallowed.Irritating to eyes and skin.
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