eepj0.cn-国产精品中文字幕一区二区三区,欧美精品一区二区三区在线,中文一区在线播放,日本一区二区在线不卡

2-Carboxybenzaldehyde

[Alias]: Phthalaldehydic acid; Phthalaldehyd; 2-Formylbenzoic acid; o-Formylbenzoic acid

[Molecular formula]:C₈H₆O₃

[Molecular weight]:150.13
      
[Structural formula]:
              

[CAS No.]: 119-67-5

[Properties]:  Lamellar crystal, Specific gravity 1.404, Melting point96 ~99℃, , easily soluble in alcohols and aether, soluble in water. 

Quality index:                        

Test	Method	Specification
Appearance	Visual description	white to off-white solid
Assay ( C8H6O3)
■2-carboxybenzaldehyde	HPLC	min 98.0%（W/W）
Identification by HPLC
■Purity		min 98.5 %
■Largest unspecified impurity		max 0.5 %
■5-Chloro-2-carboxybenzaldehyde		max  0.5 %
Residue on ignition
Sulphated ash		0.10%
Water content	Karl Fischer titration	max  1.0 %

[Uses]:Organic reagents, pharmaceutical intermediates, are the main raw materials for the synthesis of butylphthalide, phenothiazine, hydralazine and ketotifen fumarate, as well as the anticancer drugs olapani and simindril, or a new type of liquid crystal. material. It is also widely used in the field of electroplating.

[Packaging, storage & transportation]:25KG composite bag, lined with double-layer plastic bag or cardboard drum, kept in cool and dark place.