Abstract: The present disclosure pertains to a recycled polyurethane elastic fiber for which raw-material polyurethane elastic fiber is used as a raw material, wherein the recycled polyurethane elastic fiber is characterized in that the recycled polyurethane elastic fiber has a reduced viscosity of 1.00 or more, and the total amount of mineral oil and silicone oil remaining in the fiber interior after the recycled polyurethane elastic fiber has been rinsed with petroleum ether is 10 wt % or less with respect to the fiber weight after the rinsing. The present disclosure also pertains to: a method of producing the recycled polyurethane elastic fiber; a fiber structure containing said recycled polyurethane elastic fiber; a gather member; and a sanitary material.

Abstract: Provided are compounds represented by the following formula (A-1) and formula (1), or salts thereof. The compounds of formula (A-1) and formula (1) or salts thereof have ?3 adrenergic receptor agonist activity, and thus are useful as therapeutic and prophylactic agent for diabetes mellitus, obesity, hyperlipidemia, depression, diseases caused by gallstones or hypermotility of the biliary tract, diseases caused by hyperactivity of the digestive tract, interstitial cystitis, overactive bladder or urinary incontinence, or as therapeutic and prophylactic agents for diseases concomitant with decreased tears.

Abstract: There are provided (R)—N-[3-[2-[2-(3-methylindazol-6-yloxy)ethylamino]-1-hydroxyethyl]phenyl]methanesulfonamide dihydrochloride and a crystal thereof, and a crystal of the dihydrochloride salt having one or more major peaks at 2? selected from the group consisting of approximately 12.8°, 21.8° and 25.0° in the powder X-ray diffraction spectrum.

Abstract: An object of the present invention is to provide polyurethane elastic fibers that, when dyed with acidic dyes, exhibit a deep dyeing property and high fastness equivalent to those of polyamide fibers used as a companion material in mixed knitted and woven fabrics, while also exhibiting excellent spinning stability. The inventive polyurethane elastic fibers comprise 0.2 wt %-10 wt % of a polymer with a maleimide structure comprising an isobutylene unit represented by the following formula (I) and a maleimide unit represented by the following formula (II) (wherein R1 represents a C2-6 straight-chain or branched alkylene group, and R2 and R3 may be the same or different and each represents a C1-6 straight-chain or branched alkyl group), have a Blue L value of 20-50 after laundering according to JIS L0844 A2 for dyeing of a single-loop tube-knit fabric with a specific blue acidic dye, and have a staining degree of grade 3.5 or greater on nylon fabrics.

Abstract: Provided are compounds represented by the following formula (A-1) and formula (1), or salts thereof. The compounds of formula (A-1) and formula (1) or salts thereof have 133 adrenergic receptor agonist activity, and thus are useful as therapeutic and prophylactic agent for diabetes mellitus, obesity, hyperlipidemia, depression, diseases caused by gallstones or hypermotility of the biliary tract, diseases caused by hyperactivity of the digestive tract, interstitial cystitis, overactive bladder or urinary incontinence, or as therapeutic and prophylactic agents for diseases concomitant with decreased tears.