The cas register number of Chelidonic acid is 99-32-1. It also can be called as 4-Oxo-4H-pyran-2,6-dicarboxylic acid and the IUPAC Name about this chemical is 4-oxopyran-2,6-dicarboxylic acid. It belongs to the Miscellaneous.

Physical properties about Chelidonic acid are: (1)ACD/LogP: -0.78; (2)ACD/LogD (pH 5.5): -5.52; (3)ACD/LogD (pH 7.4): -5.53; (4)ACD/BCF (pH 5.5): 1; (5)ACD/BCF (pH 7.4): 1; (6)ACD/KOC (pH 5.5): 1; (7)ACD/KOC (pH 7.4): 1; (8)#H bond acceptors: 6; (9)#H bond donors: 2; (10)#Freely Rotating Bonds: 2; (11)Polar Surface Area: 78.9Ų; (12)Index of Refraction: 1.635; (13)Molar Refractivity: 36.2 cm³; (14)Molar Volume: 101 cm³; (15)Polarizability: 14.35x10^-24cm³; (16)Surface Tension: 98.4 dyne/cm; (17)Enthalpy of Vaporization: 80.42 kJ/mol; (18)Vapour Pressure: 3.47E-10 mmHg at 25°C.

When you are using this chemical, please be cautious about it as the following:
This chemical is irritating to eyes, respiratory system and skin. When you are using it, wear suitable protective clothing. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: C1=C(OC(=CC1=O)C(=O)O)C(=O)O
(2)InChI: InChI=1S/C7H4O6/c8-3-1-4(6(9)10)13-5(2-3)7(11)12/h1-2H,(H,9,10)(H,11,12)
(3)InChIKey: PBAYDYUZOSNJGU-UHFFFAOYSA-N

The toxicity data is as follows: