Ossila Dimethylammonium Iodide (DMAI) M2068A1

Dimethylammonium iodide (DMAI, CAS 51066-74-1) is an alkylammonium halide salt from Ossila, supplied as powder or crystals with a purity above 99.5%. Its main role in the lab is as the starting material for DMAPbI3, a lead iodide compound that adopts a 2H-hexagonal perovskite structure.

Compared with the widely studied methylammonium analogue MAPbI3, DMAPbI3 is reported to remain stable in ambient conditions for several months. It also shows a relatively wide optical gap of about 2.59 eV, which points to conduction in the material being ionic rather than electronic. This makes it a useful compound for researchers studying phase transitions, dielectric behaviour and ion transport in hybrid organic-inorganic perovskites.

Beyond forming its own perovskite phase, DMAI serves, like related alkylammonium halides, as an additive that lets researchers adjust perovskite crystal structures and steer them toward the physical properties they need. It belongs to Ossila's family of perovskite precursor materials used in work on perovskite solar cells and perovskite LEDs. The compound is also known as dimethylamine hydroiodide or N-methylmethanaminium iodide, has the formula C2H8IN and a molecular weight of 173.0 g/mol, and melts at 153.85 °C.

• Synthesis of DMAPbI3 with a 2H-hexagonal perovskite structure.
• Additive for tuning the structure and physical properties of perovskite materials.
• Precursor material in perovskite solar cell research.
• Precursor material in perovskite LED research.
• Studies of ionic transport and dielectric properties in hybrid perovskites.

• Product code: M2068A1
• M​olecular weight: 173.0 g/mol
• Synonyms: Dimethylamine hydroiodide, N-Methylmethanaminium iodide, DMAI
• Classification / Family: Alkylammonium halides, Perovskite precursor materials, Perovskite solar cells, Perovskite LEDs
• Melting point: 153.85 °C

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