3',4',7-Trimethoxyflavan
- 中文别名：3’，4’，7-三甲氧基黄烷标准品|对照品
- 英文别名：3',4',7-Trimethoxyflavan;
(S)-2-(3,4-Dimethoxyphenyl)-7-methoxychroman
- CAS No.：116384-26-0
- 分子式：C18H20O4
- 分子量：300
- 精确分子量：300.13600
- PSA：36.92000
- 分子结构式：
海关数据
中国海关编码：2932999099
- 概述：
- 2932999099. 其他仅含氧杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0%
- 申报要素：
- 品名, 成分含量, 用途
- 摘要/Summary：
- 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%
热门化工词典词汇
- 4-(6-Methoxy-pyriMidin-4-ylaMino)-piperidine-1-carboxylic acid tert-butyl ester4-(6-甲氧基-嘧啶-4-基氨基)-哌啶-1-羧酸叔丁基酯
- 1-bromo-6-methylcyclohexene1-溴-6-甲基环己烯
- 1,1'-(1,3-Propanediyl)bis[1,1-bis(2-methoxy-5-methylphenyl)phosphine]1,1'-(1,3-丙二基)双[1,1-双(2-甲氧基-5-甲基苯基)膦]
- 2,4,6(1H,3H,5H)-Pyrimidinetrione,5-methyl-5-METHYLPYRIMIDINE-2,4,6(1H,3H,5H)-TRIONE
- 5-methylsulfonylthiophene-2-carbaldehyde5-(甲基磺酰基)-2-噻吩甲醛
- 5-(1-ethyl-5-methylpyrazol-4-yl)-1,2-oxazole-3-carboxylic acid5-(1-乙基-5-甲基-1H-吡唑-4-基)-异恶唑-3-羧酸
- 3-Pyridinemethanol,5,6-dichloro-5,6-二氯-3-嘧啶甲醇
- dimethyl bicyclo[2.2.1]heptane-2,3-dicarboxylatedimethyl bicyclo[2.2.1]heptane-2,3-dicarboxylate
- 3,4-dibromonaphthalene-1,2-dione3,4-二溴-1,2-萘二酮
- 2-Propenoicacid,2-hydroxyethylester,polymerwith.alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl)and1,1-methylenebis[42-丙烯酸-2-羟乙基酯与&alpha
