The Indium(+3) cation; selenium(-2) anion, with its CAS registry number 12056-07-4, has the systematic name of indium selenide (2:3). It has the molecular foumula of In₂Se₃ and the formula weight of 466.52. And it is a kind of black crystal or dark lubricious flake substances and it belongs to the product categories which include Chalcogenides; Materials Science; Metal and Ceramic Science. Besides, this chemical is stable when in normal temperature and normal pressure. When you store it, put it in the cool and well-ventilated place, away from the light, flame, and high temperature.

The characteristics of Indium(+3) cation; selenium(-2) anion are as follows: (1)#H bond acceptors: 0; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 0.

When you are dealing with this chemical, you should be careful. For one thing, it is toxic which may at low levels cause damage to health. If by inhalation or if swallowed, it has the danger of cumulative effects. For another thing, it is dangerous for the environment which may present an immediate or delayed danger to one or more components of the environment. And being toxic to aquatic organisms, it may cause long-term adverse effects in the aquatic environment.

Therefore, you had better take the following measures. When using do not eat, drink or smoke, and if in case of accident or if you feel unwell seek medical advice immediately (show the label where possible). After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer). Beside, when keeping, this material and its container must be disposed of as hazardous waste and then you should avoid releasing to the environment.

What's more, the following datas could be converted into the molecular structure:
(1)SMILES:[In+3].[In+3].[Se-2].[Se-2].[Se-2]
(2)InChI:InChI=1/2In.3Se/q2*+3;3*-2
(3)InChIKey:AKUCEXGLFUSJCD-UHFFFAOYAS
(4)Std. InChI:InChI=1S/2In.3Se/q2*+3;3*-2
(5)Std. InChIKey:AKUCEXGLFUSJCD-UHFFFAOYSA-N