tropisetron的红外谱图？ &chev;&chev; synonym(s): 8-methyl-8-azabicyclo[3.2.1]oct-3-yl 1 h -indole-3-carboxylate, 9ci . 3-tropanyl 3-indolecarboxylate. navoban. novaban chapman and hall number: lrr54-d cas registry number: 89565-68-4 related cas registry numbers(s): 89565-86-6 89613-86-5 type of compound code(s): xa4635 xa1500 molecular formula: c 17 h 20 n 2 o 2 molecular weight: 284.357 accurate mass: 284.152478 percentage composition: c 71.81%; h 7.09%; n 9.85%; o 11.25% biological use/importance: 5ht 3 -receptor antagonist; used as an emetic for the control of nausea during chemotherapy physical description: cryst. (ch 2 cl 2 /etoac) development status: launched 1992 (netherlands) melting point: mp 201-202degrees. mp 285-287 dec.degrees (as hydroiodide) derivative: hydrochloride synonym(s): tropisetron hydrochloride, ban . ics 205-930 chapman and hall number: lrr56-f cas registry number: 105826-92-4 melting point: mp 283-285 dec.degrees references: ger. pat. , 1983, 3 322 574; ca , 100 , 209629q, (synth) coker, s.j. et al. , eur. j. pharmacol. , 1986, 127 , 211, (metab) cestall, b. et al. , neuropharmacology , 1986, 25 , 959 leibundgut, u. et al. , lancet , 1987, 1198 cohen, m.l. et al. , j. pharmacol. exp. ther. , 1989, 248 , 197, (pharmacol) simpson, k. et al. , drugs , 2000, 59 , 1297-1315, (rev) [00153021-1] x0 m0 看后面的几篇文献里有没，如果你能查到的话 查看更多
请问什么是液时空速？液时空速（liquid hourly space velocity———— lhsv）：是空速的一种表示形式，其意义为单位反应体积(对于采用固体催化剂的反应，则为单位体积催化剂)每小时处理液相反应物的体积。如以其他时间单位计算则称液空速。只要反应物为液相，不管实际反应条件下是否以液相存在，均可用液(时)空速表示反应器的生产强度。若反应物之一为液相，而另一不为液相，同样可以前者的体积来计算液(时)空速。如渣油加氢反应，轻油加氢脱硫反应，便是这样的例子，用油的体积计算液时空速，并不计人气相反应物——氢。液(时)空速常用符号l(h)sv来表示，查看更多
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