一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
010-86108875
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List 1,3-dihydroxy-2-naphthoic acid
3147-58-8

1,3-dihydroxy-2-naphthoic acid synthesis

2synthesis methods
It is obtained by reacting ethyl 1,3-dihydroxy-2-naphthoic acid with barium hydroxide solution in dioxane, and then acidifying with sulfuric acid. The yield is 90%.
-

Yield:-

Steps:

Multi-step reaction with 2 steps
1: sodium acetate
2: aq. barium hydroxide solution

References:

Metzner [Justus Liebigs Annalen der Chemie,1897,vol. 298,p. 379]

安溪县| 木兰县| 呼和浩特市| 澜沧| 永城市| 乐清市| 瓦房店市| 麦盖提县| 长垣县| 庆城县| 崇左市| 建阳市| 鲜城| 嵊泗县| 小金县| 锦屏县| 海城市| 济南市| 泰安市| 旺苍县| 海原县| 洛浦县| 博客| 夏河县| 饶阳县| 藁城市| 江华| 吉林市| 托克托县| 萍乡市| 神农架林区| 四子王旗| 额济纳旗| 西畴县| 扶风县| 长岛县| 阜康市| 哈尔滨市| 布拖县| 滁州市| 宕昌县|