LIII.—The rotation-dispersion of butyl, heptyl, and octyl tartrates

Supramolecular structures of 1-phenylethylammonium tartrates.

The structures of six 1-phenylethylammonium tartrates have been determined and in each of them a distinctive hydrogen-bonded anion substructure can be identified. (S)-1-Phenylethylammonium (R,R)-hydrogen tartrate [(I), P21, Z'=1] contains anion sheets built from a single type of R4(4)(22) ring with cations pendent, via three N-H...O hydrogen bonds, from just one face of the sheet. (S)-1-Phenyle...

Chronic Toxicity of Di-n-butyl and Di-n-octyl Phthalate to Daphnia Magna and the Fathead Minnow

The toxicities of di-n-butyl phthalate (DBP) and di-n-octyl phthalate (DOP) were assessed by measuring the effect of exposure to these compounds on the fecundity of Daphnia magna and on the hatching and survival of the early life stages of the fathead minnow Pimephales promelas. For D. magna, exposure to 1.8 mg/L DBP or 1.0 mg/L DOP caused a significant reduction in reproduction. Doses of 0.56 ...

An in-vivo study of the wound-bursting strengths of octyl-cyanoacrylate, butyl-cyanoacrylate, and surgical tape in rats.

BACKGROUND Several non-invasive wound-closure devices are available. Clinical studies of low-tension lacerations suggest similar clinical outcomes with these devices. OBJECTIVE We compared the wound-bursting strengths (WBS) of octyl-cyanoacrylate (Dermabond), butyl-cyanoacrylate (Histoacryl Blue), and adhesive tape (Steri-Strips). METHODS Design-randomized, controlled, blinded experiment. S...

Photoallergic contact dermatitis due to combined UVB (4-methylbenzylidene camphor/octyl methoxycinnamate) and UVA (benzophenone-3/butyl methoxydibenzoylmethane) absorber sensitization.

In a 71-year-old male Caucasian patient with persistent eczema on light-exposed skin, photocontact allergy was demonstrated to the UV filter substances 4-methylbenzylidene camphor (UVB), octyl methoxycinnamate (UVB), benzophenone-3 (UVA) and butyl methoxydibenzoylmethane (UVA) present in sunscreen products used by the patient over several years. A significantly reduced UVB sensitivity of 25 mJ/...

Decomposition of tartrates by the coliform bacteria.