Y

Xylitol Xylitol n xylitol (a pentanepentol) Xylochinon n xyloquinone, dimethylbenzoquinone Xylodesose f deoxyxylose, xylodesose (a mono­

saccharide) Xyloketose f s. Xylulose Xylol n s. Xylen Xylollichtgelb n xylene light yellow Xylolmoschus m musk xylol, musk xylene, xylene

musk, *2,4,6-trinitro-1,3-dimethyl-5-fe/?-butylbenzene

Xylolsulfonsaure f xylenesulphonic acid Xylonsaure f xylonic acid (a tetrahydroxypentanoic

acid) Xylorcin n, Xylorcinol n xylorcinol, dihydroxyxy-

lene Xylose f xylose, wood sugar (a monosaccharide) Xylotrihydroxyglutarsaure fs. Xylarsaure Xyloylgruppe f (CH3)2 C6H3C O - xyloyl group Xylulose f xylulose, xyloketose Xylylbromid n a-bromoxylene, xylyl bromide Xylylchlorid n a-chloroxylene, xylyl chloride Xylylenbromid n a,a'-dibromoxylene, xylylene

dibromide Xylylenchlorid n a,a'-dichloroxylene, xylylene

dichloride Xylylsaure f xylylic acid, dimethylbenzoic acid x-y-Schreiber m X-Y recorder, function plotter

Yankee-Maschine f (pap) Yankee (single-cylinder,

lick-up) machine Ylang-Ylang-OI n ilang-ilang (ylang-ylang) oil (from

Cananga odorata (Lam.) Hook. fit. et Thomson) Ylid n ylide (any of a class of internal salts) P-Ylid n phosphonium (phosphorus) ylide, Wittig

reagent Ylidreaktion f ylide reaction Yohimbealkaloid n yohimbe alkaloid Yohimbinsaure f yohimbic acid Yperit n yperite, *di-2-chloroethylsulphide Yphantis-Verfahren n zero-meniscus concentra­

tion technique (high-speed centrifugation with low liquid level)

Ypsilonstuck n Y-shape connecting tube, Y-piece, Y-type connector

Ysopol n hyssop oil (from Hyssopus officinalis L.) Y-Stuck n s. Ypsilonstuck Ytterbinerde fs. Ytterbiumoxid Ytterbium n Yb ytterbium Ytterbium(ll)-chlorid nytterbium(ll) chloride, ytter­

bium dichloride Ytterbium(lll)-chlorid nytterbium(lll) chloride,

ytterbium trichloride Ytterbiumdichlorid n s. Ytterbium(ll)-chlorid Ytterbiumoxid n ytterbium oxide Ytterbium(lll)-sulfat nytterbium(lll) sulphate Ytterbiumtrichlorid n s. Ytterbium(lll)-chlorid Yttererde f 1. yttrium earth (class name)] 2. s.