7-Hydroxycoumarin-3-carboxylic acid

Melting point :261 °C(lit.)
Boiling point :474.8±45.0 °C(Predicted)
Density :1.639±0.06 g/cm3(Predicted)
storage temp. :Keep in dark place,Sealed in dry,Store in freezer, under -20°C
solubility :DMF: soluble
pka :7.04 ± 0.02, temperature: 23 °C
form :powder to crystal
color :Yellow solid;Orange solid; Off-white powder
λmax :386 nm (Buffer pH 10.0); 339 nm (Buffer pH 4.0)
BRN :384141
Major Application :Carbon-dioxide sensor; chemical sensors based on non-linear optics; monitoring of cationic photopolymerization processes; nanomaterials
Biological Applications :Chemical dosimeter for radiation therapy; detecting bacteria; detecting/sensing hydroxyl radicals; studying nucleic acids; as a substrate for measuring carboxylesterases activity, cellulases activity, β-galactosidases activity, glycosidases activity, glycosyltransferases activity, hydrolases activity, 4-hydroxycinnamate decarboxylases activity, β-lactamases activity, phosphatases activity, sulfatases activity; treating cancer/antitumor activity
InChI :InChI=1S/C10H6O5/c11-6-2-1-5-3-7(9(12)13)10(14)15-8(5)4-6/h1-4,11H,(H,12,13)
InChIKey :LKLWLDOUZJEHDY-UHFFFAOYSA-N
SMILES :C1(=O)OC2=CC(O)=CC=C2C=C1C(O)=O

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. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.