A carborane is a cluster composed of boron, carbon and hydrogen atoms. Like many of the related boranes, these clusters are polyhedra and are similarly classified as closo-, nido-, arachno-, hypho-, etc. based on whether they represent a complete (closo-) polyhedron, or a polyhedron that is missing one (nido-), two (arachno-), or more vertices. Carboranes are a notable example of heteroboranes. The icosahedral closo-carboranes are particularly stable. These boron-rich clusters exhibit unique organomimetic properties with chemical reactivity matching classical organic molecules, yet structurally similar to metal-based inorganic and organometallic species. Carboranes have been explored as a source of boron in boron neutron capture therapy. They have also been examined in structural studies in crystallography. Carboranes have been used to make solid superacids. Solid superacid catalysts alleviate the need to dispose of spent acids, thus providing a significant environmental advantage over dissolved acids. o-Carborane CAS: 16872-09-6 is another carborane and available from UCHEM in large scale. It is a white powder with molecular formula (C2B10H12). The following analogues have also been supplied. m-Carborane CAS: 16986-24-6 p-Carborane CAS：20644-12-6 Decaborane(14) CAS: 17702-41-9 Ammoniaborane CAS: 13774-81-7 9-BBN Dimer CAS: 21205-91-4 Diphenyl-o-carborane CAS:17805-19-5