色播婷婷电影综合社区,AV女优不卡亚洲在线,99999AV,日韩人妻中文字幕视频,国产拍自偷,91人人妻,超碰在线81,免费福利视频一区,九草青草原在线看

China 2-Methoxycinnamic acid - China Supplier
China 2-Methoxycinnamic acid - China Supplier China 2-Methoxycinnamic acid - China Supplier

2-Methoxycinnamic acid

Price:Negotiable
Industry Category: Chemicals/Polymers
Product Category:
Brand:
Spec:


Contact Info

Other Products

Description
Additional Information

Molecular Formula:C10H10O3

Molecular Weight:178.18

EINECS No.:228-047-4

Melting point: 182-186 °C

Purity: >99%

Appearance: White crystal powder,Insoluble in water, soluble in ethanol, ethyl acetate and other organic solvents

Package specification: 200kg/blue barrel

Storage:  sealed, store in cool, dry, ventilated place

 

Preparation method: From the aqueous poplar aldehyde and dimethyl sulfate methylation reaction was made.

The 3kg sodium hydroxide is mixed with 30% aqueous solution and added by stirring In a solution containing 12.2kg of water, Yang aldehyde and 80L water, heated to boiling.

The 12.9kg sulfuric acid dimethyl ester is slowly added to keep the reaction fluid reflux

About 3h Plus, continue to reflow 2-3h, cooling oil, with 5% sodium hydroxide solution washed, and then washed to ph 8, plus anhydrous potassium carbonate Dry. Remove the desiccant after decompression distillation, collect 120 ℃ (2.0kPa) fraction, that is, O-methoxy benzaldehyde.

Methylation reactions are also Can be carried out in solvent toluene, yield 60%.

 

Usage:

 2-Methoxycinnamic acid 

 is an organic synthetic intermediate for the production of spices and pharmaceuticals. O-methoxy basic formaldehyde can be used in production.

methoxy-phenyl-methyl Aldehyde can be used in the production of epinephrine-induced cough ning. O-methoxy cinnamic acid is mainly used in the fragrance of daily. Cinnamic acid is an important organic chemical raw material, widely used in drugs, flavors, essence and fragrances and light-sensitive materials and other fine Preparation of chemical products.

Cinnamic acid is a cinnamon-flavored spice that blends apples, cherries, fruits and floral fragrances as a flavoring ingredient. Generally has a good effect of incense, and can make the fragrance of the main fragrance more fresh through hair, but also as soap, shampoo, washing powder, daily cosmetics in the aromatic mixture.

 

Specifications

 

Item

Requirements

Results

Assay

>99%

99.15%

Description

White crystal powder

White crystal powder

Melting point

182-186 °C

 

185°C

Acidity

≤1mgKOH/g

0.41mgKOH/g

 

Industry Category Chemicals/Polymers
Product Category
Brand:
Spec:
Stock:
Origin:
About Toocle.com - Partner Programme - Old Version
Copyright ? Toocle.com. All Rights Reserved.
(浙)-經(jīng)營性-2023-0192
ChatGlobal Chat Me 博湖县| 陇西县| 太和县| 施秉县| 横峰县| 东丰县| 安顺市| 尉氏县| 丽水市| 临洮县| 文水县| 当阳市| 揭东县| 突泉县| 临夏市| 罗甸县| 金寨县| 丰县| 罗甸县| 舞阳县| 成安县| 哈巴河县| 宁城县| 北安市| 同德县| 壤塘县| 萍乡市| 佛学| 若尔盖县| 岢岚县| 罗城| 临夏县| 河源市| 瓦房店市| 柳江县| 北京市| 阿瓦提县| 余干县| 安阳县| 遂宁市| 东海县|