英文名称:2,3,14,20,22,28-Hexahydroxy-6-oxostigmast-7-en-26-oic acid; (2β,3β,5β,14α,20R,22R,24S,25S,28R)-form, 26→28-Lactone, 22-ketone, 2-O-β-D-glucopyranoside CAS No.:948294-71-1 分子式:C35H52O13 分子量:680.779592514038 ...
中文名称:丁酸,3-甲基-,(1S,3S,5Z,7R,8E,11R,13E,15S,17R,21R,23R,25S)-1,11,21-三羟基-17-[(1R)-1-羟乙基]-5,13-双(2-甲氧基-2-氧代亚乙基)-10,10,26,26-四甲基-19-氧代-18,27,28,29-四氧代四环[21.3.1.13,7.111,15]壬-8-烯-25-酯 ...
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百度试题 题目406MHzEPIRB,每50s发射时间为() A.5s B.0.5s C.10s D.25s相关知识点: 试题来源: 解析 0.5s 反馈 收藏
百度试题 题目全画幅相机使用镜头50MM焦距的镜头,安全快门是A.1/50SB.1/80SC.1/30SD.1/25S 相关知识点: 试题来源: 解析 A 反馈 收藏
英文名称: (2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-10-[4-(2-ethoxyethyl)piperazin-1-yl]-5,12,21,23-tetrahydroxy-27-methoxy-2,4,16,20,22,24,26-heptamethyl-1,6,15-trioxo-1,2-dihydro-6H,13H-2,7-(epoxypentadeca[1,11,13]trienoazeno)[1]benzofuro[4,5-a]phenoxazi...