Melting point :>300°C
Boiling point :692.0±55.0 °C(Predicted)
Density :1.72±0.1 g/cm3(Predicted)
storage temp. :2-8°C
solubility :almost transparency in NaOH100g/L
form :powder to crystal
pka :9.29±0.20(Predicted)
color :Light yellow to Brown
Stability :Light and Moisture Sensitive
InChI :InChI=1S/C20H11NO7/c22-11-2-5-15-17(8-11)27-18-9-12(23)3-6-16(18)20(15)14-4-1-10(21(25)26)7-13(14)19(24)28-20/h1-9,22-23H
InChIKey :UACQOMKZFGNRBL-UHFFFAOYSA-N
SMILES :C12(C3=C(C=C(O)C=C3)OC3=C1C=CC(O)=C3)C1=C(C=C([N+]([O-])=O)C=C1)C(=O)O2
EPA Substance Registry System :Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 3',6'-dihydroxy-5-nitro- (3326-35-0)

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:	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.