Ethynylmagnesium Bromide is applied in various analytical and synthetic procedures due to its unique composition. This compound, identified as C2HBrMg, has a molecular weight of 129.24. Its structure consists of a magnesium atom bonded to an ethynyl group (a carbon-carbon double bond with a hydrogen atom attached), and a bromine atom. As a result, it can participate in reactions involving electrophilic addition, substitution, and elimination processes. Given its flammable nature, as indicated by the Danger signal word, appropriate safety measures should be taken when handling this compound.

• CAS Number: 4301-14-8
• GHS Signal Word: Danger
• Exact Mass: 127.91120
• Molecular Formula: C2HBrMg
• Molecular Weight: 129.24
• Hazard Statements:
• H225: Highly Flammable liquid and vapor [Danger Flammable liquids]