cycloparaphenylene are now commercially available through TCI!!
CAS number: 1092522-75-2. MW: C72H48=913.15
 Selective Synthesis of Cycloparaphenylene
Hiroko Takaba, Haruka Omachi, Yosuke Yamamoto, Jean Bouffard, and Kenichiro Itami
 A Modular and Size-Selective Synthesis of [n]Cycloparaphenylenes: A Step toward the Selective Synthesis of [n,n] Single-Walled Carbon Nanotubes
Haruka Omachi, Sanae Matsuura, Yasutomo Segawa, and Kenichiro Itami