Melting point :138-139 °C
Boiling point :464.8±47.0 °C(Predicted)
Density :1.40
storage temp. :2-8°C
solubility :methanol: 10 mg/mL, clear
pka :8.71±0.50(Predicted)
form :solid
color :Red or orange
BRN :223783
Stability :Stable for 1 year from date of purchase as supplied. Solutions in DMSO may be stored at -20°C for up to 1 month.
CAS DataBase Reference :1147-56-4(CAS DataBase Reference)
EPA Substance Registry System :2-Naphthalenol, 1-(2-thiazolylazo)- (1147-56-4)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes 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. 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.