The cas register number of D-Galactono-1,4-lactone is 2782-07-2. It also can be called as D-Galactonic acid, g-lactone and the IUPAC Name about this chemical is (3R,4R,5S)-5-[(1R)-1,2-dihydroxyethyl]-3,4-dihydroxyoxolan-2-one. When you are using it, please not breathe dust and avoid contact with skin and eyes.

Physical properties about D-Galactono-1,4-lactone are: (1)ACD/LogP: -3.16; (2)ACD/LogD (pH 5.5): -3.15; (3)ACD/LogD (pH 7.4): -3.15; (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: 4; (10)#Freely Rotating Bonds: 6; (11)Polar Surface Area: 63.22Ų; (12)Index of Refraction: 1.625; (13)Molar Refractivity: 35.66 cm³; (14)Molar Volume: 100.8 cm³; (15)Polarizability: 14.13x10^-24cm³; (16)Surface Tension: 109.3 dyne/cm; (17)Enthalpy of Vaporization: 84.17 kJ/mol; (18)Vapour Pressure: 1.01E-10 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C1OC(C(O)CO)C(O)C1O
(2)InChI: InChI=1/C6H10O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2-5,7-10H,1H2
(3)InChIKey: SXZYCXMUPBBULW-UHFFFAOYAM
(4)Std. InChI: InChI=1S/C6H10O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2-5,7-10H,1H2
(5)Std. InChIKey: SXZYCXMUPBBULW-UHFFFAOYSA-N