Melting point :194 °C
Boiling point :382.3±22.0 °C(Predicted)
Density :1.437
Flash point :185℃
storage temp. :Keep in dark place,Inert atmosphere,Room temperature
form :powder to crystal
pka :-1.66±0.22(Predicted)
color :White to Yellow to Orange
BRN :124467
InChI :InChI=1S/C5H5N3O2/c6-4-2-1-3-7-5(4)8(9)10/h1-3H,6H2
InChIKey :GZBKVUGZEAJYHH-UHFFFAOYSA-N
SMILES :C1([N+]([O-])=O)=NC=CC=C1N
CAS DataBase Reference :13269-19-7(CAS DataBase Reference)

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 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. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. 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.