The Dibismuth triselenide, with the cas registry number 12068-69-8, has the IUPAC name of dibismuth selenium(2-). Its product categories are including Chalcogenides; Materials Science; Metal and Ceramic Science.

The physical properties of this chemical are below: (1)#H bond acceptors: 3; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 0; (5)Exact Mass: 655.711119; (6)MonoIsotopic Mass: 657.710331; (7)Heavy Atom Count: 5; (8)Covalently-Bonded Unit Count: 5.

When you are using this chemical, you should be very cautious. For one thing, it is toxic which may at low levels cause damage to health. If by inhalation and if swallowed, it will be very dangerous, and it even has 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. Being very toxic to aquatic organisms, it may cause long-term adverse effects in the aquatic environment.

Due to so many dangers, you could take the different measures to deal with different cases. When using this chemical, do not eat, drink or smoke; After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer); And if in case of accident or if you feel unwell seek medical advice immediately (show the label where possible). When store this chemical, this material and its container must be disposed of as hazardous waste, and then remember not to release to the environment. And you could also refer to special instructions/safety data sheet.  

Additionally, you could convert the following datas into the molecular structure:
(1)Canonical SMILES: [Se-2].[Se-2].[Se-2].[Bi+3].[Bi+3]
(2)InChI: InChI=1S/2Bi.3Se/q2*+3;3*-2
(3)InChIKey: FBGGJHZVZAAUKJ-UHFFFAOYSA-N