4-Amino-1,3-benzenedisulfonic acid

Melting point :>259°C (dec.)
Boiling point :497.45℃[at 101 325 Pa]
Density :1.844±0.06 g/cm3(Predicted)
vapor pressure :0Pa at 25℃
storage temp. :Keep in dark place,Sealed in dry,Room Temperature
solubility :Aqueous Acid (Slightly), DMSO (Slightly), Methanol (Slightly), Water (Slightly)
pka :-0.93±0.48(Predicted)
form :Solid
color :White to Grey
Water Solubility :4.3g/L at 21℃
Stability :Hygroscopic
InChI :InChI=1S/C6H7NO6S2/c7-5-2-1-4(14(8,9)10)3-6(5)15(11,12)13/h1-3H,7H2,(H,8,9,10)(H,11,12,13)
InChIKey :IMUUNYPYNWXUBO-UHFFFAOYSA-N
SMILES :C1(S(O)(=O)=O)=CC=C(N)C(S(O)(=O)=O)=C1
LogP :-0.959 at 21℃
CAS DataBase Reference :137-51-9(CAS DataBase Reference)
EPA Substance Registry System :1,3-Benzenedisulfonic acid, 4-amino- (137-51-9)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P280 Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P310 Immediately call a POISON CENTER or doctor/physician.