The IUPAC name of 7,8-Dihydroxycoumarin is 7,8-dihydroxychromen-2-one. With the CAS registry number 486-35-1, it is also named as Daphnetin. The product's categories are Pharmaceutical Raw Materials; Coumarins. It is solid which is stable under normal temperature and pressure. Additionally, this chemical should be sealed in the container and stored in the cool and dry place.

The other characteristics of this product can be summarized as: (1)ACD/LogP: 0.77; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.76; (4)ACD/LogD (pH 7.4): 0.45; (5)ACD/BCF (pH 5.5): 2.22; (6)ACD/BCF (pH 7.4): 1.09; (7)ACD/KOC (pH 5.5): 61.44; (8)ACD/KOC (pH 7.4): 30.11; (9)#H bond acceptors: 4; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 44.76 Å²; (13)Index of Refraction: 1.689; (14)Molar Refractivity: 43.52 cm³; (15)Molar Volume: 113.9 cm³; (16)Polarizability: 17.25×10^-24cm³; (17)Surface Tension: 75.6 dyne/cm; (18)Enthalpy of Vaporization: 71.23 kJ/mol; (19)Vapour Pressure: 5.18E-08 mmHg at 25°C.

Preparation of 7,8-Dihydroxycoumarin: this chemical can be obtained by 7,8-dibenzyloxycoumarin. This reaction will need reagent AlBr₃ and solvent nitrobenzene. The reaction time is 5 min. The yield is about 80%.

Uses of 7,8-Dihydroxycoumarin: it is used to produce 7,8-dibenzyloxycoumarin.  This reaction will need reagent K₂CO₃ and solvent nitrobenzene at the temperature of 60°C. The reaction time is 13 hour (s) and the yield is about 92%.

When you are using this chemical, please be cautious about it as the following:
It is not only toxic if swallowed, but also irritating to eyes, respiratory system and skin. So people shouold not breathe dust and avoid contact with skin and eyes. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If you want to contact this product, you must wear suitable protective clothing.

People can use the following data to convert to the molecule structure.
1. SMILES: O=C/2Oc1c(O)c(O)ccc1\C=C\2
2. InChI: InChI=1/C9H6O4/c10-6-3-1-5-2-4-7(11)13-9(5)8(6)12/h1-4,10,12H
3. InChIKey: ATEFPOUAMCWAQS-UHFFFAOYAC

The following are the toxicity data which has been tested.