エリスロシン B 化學(xué)特性,用途語,生産方法
外観
暗赤色の粉末
溶解性
水, グリセリン, グリコール類, エタノールに可溶。油脂に不溶。水に溶けやすく、エタノールに溶ける。
用途
1. 酸性染料 2. 寫真乳剤の色増感剤 3. 分析用試薬 1) 酸塩基指示薬 : pH1.2～2.5でオレンジ色から赤色に変わる。pH3.6以上で暗トウ色のケイ光を発する。 2) 水銀(I)の検出 : 水銀(I)イオンおよび硫酸と反応し、赤色沈殿を作る。
説明
FD & C Red No. 3 is principally the disodium salt of the monohydrate of 9(ocarboxyphenyl)-6-hydroxy-2,4,5,7-tetraiodo-3H- xanthen-3-one.
The colorant is a brown powder that dissolves in water to give a solution red at neutrality, with a yellow-brown precipitate in acid, and with a red precipitate in base. When dissolved in concentrated sulfuric acid, it yields a brown-yellow solution that evolves iodine and a precipitate of the free acid when heated.
FD & C Red No. 3 is used in dietary supplements, confectionery products, dairy products, cherries, jellies, jams, dessert powders, canned fruit and vegetable products, fish products, condiment sauces and bakery goods.1
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化學(xué)的特性
red to brown powder
使用
Erythrosin B (FD&C Red #3) is a colorant. It is not recommended for use below ph 5.0, being insoluble at ph 3–5 but being stable at ph 7 and 8. It has a solubility in water of 9 g/100 ml at 25°c. It has fair stability to oxidation and poor to fair stability to light, while having good stability in 10% sugar systems. It has exceptional clarity and brilliance, having a bluish pink hue with very good tinctorial strength. It has poor compatibility with food components and is used in candies and confections as well as cherry dyeing. The common name is erythrosine.
定義
ChEBI: An organic sodium salt that is the disodium salt of 2-(2,4,5,7-tetraiodo-6-oxido-3-oxo-8a,10a-dihydroxanthen-9-yl)benzoic acid.
製造方法
fluorescent element (C.I. Acid Yellow 73, C.I. 45350) or ethanol in aqueous solution of the four iodine, then into sodium salt.
一般的な説明
Erythrosin B (C.I. 45430)for microscopy Certistain
?, is a dry dye for microscopy that is often used as a counterstain, vizualising proteins, connective tissues, fibers and keratin in sample material of human origin. Depending on user requirements and personal preferences, it can be used for the preparation of the commonly used aqueous or alcoholic Erythrosin B staining solutions. As the dye belongs to the portfolio of Certistain
? dyes, it is chemically analyzed according to strict specifications before release (CE marked and IVD product) and a high staining quality, with reliable staining results is guaranteed. For more details, please see instructions for use (IFU). The IFU can be downloaded from this webpage.
化學(xué)性質(zhì)
ヨウ素を含むフルオレセイン構(gòu)造を有する赤色系粉末
エリスロシン B 上流と下流の製品情報
原材料
準(zhǔn)備製品