Melting point :197 °C (dec.)(lit.)
Boiling point :316.88°C (rough estimate)
alpha :-0.5～+0.5°(D/20)(c=1,0.1mol/l HCl)
Density :1.1967 (rough estimate)
refractive index :1.4760 (estimate)
storage temp. :2-8°C
solubility :0.1 M HCL : 2.5 mg/mL (13.65 mM; ultrasonic and adjust pH to 1 with HCl)DMSO : 1 mg/mL (5.46 mM; ultrasonic and adjust pH to 7 with HCl)Ethanol : < 1 mg/mL (insoluble)H2O : < 0.1 mg/mL (insoluble)
form :Powder
pka :9.60±0.10(Predicted)
Water Solubility :Sparingly soluble
Sensitive :Light Sensitive
Merck :14,3619
CAS DataBase Reference :329-65-7(CAS DataBase Reference)
EPA Substance Registry System :4-[1-Hydroxy-2-(methylamino)ethyl]-1,2-benzenediol (329-65-7)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H311 Toxic in contact with skin Acute toxicity,dermal Category 3 Danger P280, P302+P352, P312, P322, P361,P363, P405, P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P280 Wear protective gloves/protective clothing/eye protection/face protection. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405 Store locked up.