Melting point :260 °C (dec.)(lit.)
Density :1.577
refractive index :1.6510 (estimate)
storage temp. :−20°C
solubility :H₂O: 50 mg/mL, clear
form :Powder
color :white to faintly beige
Water Solubility :50 g/L (20 ºC)
Sensitive :Air Sensitive
Merck :14,6017
BRN :3919382
Stability :Stability Combustible. Incompatible with strong oxidizing agents, acids, acid halides.
CAS DataBase Reference :55-55-0(CAS DataBase Reference)
EPA Substance Registry System :p-Methylaminophenol sulfate (55-55-0)

Symbol(GHS):
Signal word:	Warning
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 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501 H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
Precautionary statements:	P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P302+P352 IF ON SKIN: wash with plenty of soap and water. P314 Get medical advice/attention if you feel unwell.