Melting point :>300 °C (lit.)
Boiling point :209.98°C (rough estimate)
Density :1.4421 (rough estimate)
vapor pressure :0.001Pa at 20℃
refractive index :1.4610 (estimate)
storage temp. :Inert atmosphere,Room Temperature
solubility :2.5 g/L (20° C)
pka :5.70±0.10(Predicted)
form :Powder
color :Yellow to orange
Water Solubility :2.5 g/L (20 º C)
BRN :606433
InChI :1S/C4H4N2O2/c7-3-1-4(8)6-2-5-3/h1-2H,(H2,5,6,7,8)
InChIKey :DUFGYCAXVIUXIP-UHFFFAOYSA-N
SMILES :Oc1cc(O)ncn1
LogP :-2.8 at 25℃
CAS DataBase Reference :1193-24-4(CAS DataBase Reference)
NIST Chemistry Reference :4(1H)-pyrimidinone, 6-hydroxy-(1193-24-4)
EPA Substance Registry System :6-Hydroxy-4(1H)-pyrimidinone (1193-24-4)

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. 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.