Melting point :145-148 °C (lit.)
Boiling point :270 °C/743 mmHg (lit.)
Density :1.4220 (rough estimate)
refractive index :1.5500 (estimate)
Flash point :270°C
storage temp. :Inert atmosphere,Room Temperature
pka :14.00±0.10(Predicted)
form :Needle-Like Crystalline Powder
color :White to beige
Water Solubility :SOLUBLE IN HOT WATER
Merck :14,4936
BRN :109676
CAS DataBase Reference :271-44-3(CAS DataBase Reference)
NIST Chemistry Reference :1H-Indazole(271-44-3)
EPA Substance Registry System :Indazole (271-44-3)

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 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 H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312 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. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.