The Gypsum(CaSO₄^.2H₂O), with the CAS registry number 13397-24-5, has the systematic name of calcium sulfate hydrate (1:1:2). It is a kind of organics, and should be stored in the dry and cool environment. And the molecular formula of the chemical is CaSO₄^.2H₂O.

Physical properties about Gypsum are: (1)ACD/LogP: -1.031; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -5.53; (4)ACD/LogD (pH 7.4): -5.53; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)#H bond acceptors: 4; (8)#H bond donors: 2; (9)#Freely Rotating Bonds: 0; (10)Polar Surface Area: 82.98 Å²; (11)Enthalpy of Vaporization: 62.94 kJ/mol; (12)Boiling Point: 330 °C at 760 mmHg; (13)Vapour Pressure: 3.35E-05 mmHg at 25°C.

When you are using this chemical, please be cautious about it as the following:
1. Avoid exposure - obtain special instruction before use;
2. Do not breathe dust;
3. Wear suitable protective clothing and gloves;
4. In case of accident or if you feel unwell, seek medical advice immediately (show label where possible);
5. This material and/or its container must be disposed of as hazardous waste;

You can still convert the following datas into molecular structure:
(1)SMILES: [Ca+2].[O-]S([O-])(=O)=O.O.O
(2)InChI: InChI=1/Ca.H2O4S.2H2O/c;1-5(2,3)4;;/h;(H2,1,2,3,4);2*1H2/q+2;;;/p-2
(3)InChIKey: PASHVRUKOFIRIK-NUQVWONBAP

The toxicity data is as follows: