Melting point :>232°C (subl.)
Boiling point :692.3±65.0 °C(Predicted)
Density :1.870±0.06 g/cm3(Predicted)
storage temp. :Hygroscopic, -20°C Freezer, Under inert atmosphere
solubility :Aqueous Base (Slightly), Methanol (Very Slightly, Heated, Sonicated)
pka :1.41±0.10(Predicted)
form :Solid
color :White to Off-White
Stability :Hygroscopic
CAS DataBase Reference :105462-24-6(CAS DataBase Reference)
EPA Substance Registry System :Phosphonic acid, P,P'-[1-hydroxy-2-(3-pyridinyl)ethylidene]bis- (105462-24-6)

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:	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. P310 Immediately call a POISON CENTER or doctor/physician.