Abstract: Provided are any one of the following fluorescent compounds and a fluorescent labeled biological substance having this fluorescent compound. X represents CR5 or N, and R1 to R7, Q1, Q2, L1, and L2 each represent a specific group. a ring ?1 and a ring ?2 are a 5- to 8-membered ring, At least one of R1 to R7, L1, L2, Q1, or Q2 has a specific hydrophilic group. However, in a case where the ring ?1 and the ring ?2 are a 6-membered ring, and L1 and L2 are an arylene group, R5 is not an aryl group substituted with a linear alkyl group having 18 or more carbon atoms. In addition to the regulation of the ring ?1, the ring ?2, L1, and L2, in a case where R5 has a substituent having a dipyrromethene boron complex structure, the dipyrromethene boron complex structure has a structure in which a dipyrromethene skeleton is coordinately bonded to a boron atom in the tridentate or tetradentate coordination.

Abstract: A solid dispersion and a method of producing a solid dispersion of a sparingly water-soluble drug characterized by mixing the sparingly water-soluble drug and a water-soluble polymer at a temperature where neither the water-soluble drug nor water-soluble polymer is melted.

Abstract: A drug delivery device includes a cylinder having a large diameter and a drug delivery member coaxially fitted to one end of the cylinder and in fluid communication therewith, the drug delivery member having a diameter substantially smaller than that of the cylinder. Drug delivery orifices are formed only at a side wall of the drug delivery member at an end thereof opposite the cylinder. A plunger fittable into an end of the cylinder opposite the drug delivery member has a disc portion and a central projection which fits into the drug delivery member. A cap covering the drug delivery member has an annular projection on the inside thereof for sealing the drug delivery member.