Pyrogallol

Melting point :43-47 °C(lit.)
Boiling point :309 °C
Density :1.112 g/mL at 25 °C(lit.)
bulk density :600kg/m3
vapor density :4.4 (vs air)
vapor pressure :10 mm Hg ( 167.7 °C)
refractive index :n20/D 1.387
Flash point :>230 °F
storage temp. :Store below +30°C.
solubility :water: soluble
form :Very Fine Crystalline Powder
pka :pK1:9.03(0);pK2:11.63(+1) (25°C)
color :White
PH :4-5 (50g/l, H2O, 20℃)
Water Solubility :400 g/L (25 ºC)
Sensitive :Light Sensitive
Merck :14,8000
BRN :907431
Henry's Law Constant :6.3×10⁴ mol/(m³Pa) at 25℃, HSDB (2015)
Stability :Stable, but decolourises in light. Combustible. Incompatible with strong oxidising agents, alkalies, metal oxides, ammonia, antipyrine, phenol, iodine, lime water, menthol, potassium permanganate, strong bases.
Major Application :pharmaceutical (small molecule)
Cosmetics Ingredients Functions :HAIR DYEING
InChI :1S/C6H6O3/c7-4-2-1-3-5(8)6(4)9/h1-3,7-9H
InChIKey :WQGWDDDVZFFDIG-UHFFFAOYSA-N
SMILES :Oc1cccc(O)c1O
LogP :-0.47
CAS DataBase Reference :87-66-1(CAS DataBase Reference)
NIST Chemistry Reference :1,2,3-Benzenetriol(87-66-1)
EPA Substance Registry System :Pyrogallol (87-66-1)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H341 Suspected of causing genetic defects Germ cell mutagenicity Category 2 Warning P201,P202, P281, P308+P313, P405,P501 H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:	P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P308+P313 IF exposed or concerned: Get medical advice/attention.