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Product 219916 is simply Hydroxy naphthol blue disodium salt. The dye is not deposited on crystals of sodium chloride. The product meets the specifications of the American Chemical Society and is suitability tested for calcium determination.
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5 G
$64.10
100 G
$347.00
About This Item
线性分子式:
C20H12N2O11S3Na2
CAS号:
分子量:
598.49
MDL编号:
UNSPSC代码:
12171500
PubChem化学物质编号:
NACRES:
NA.47
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等级
ACS reagent
质量水平
表单
powder, crystals or granules
技术
titration: suitable
pH值（酸碱度）
7.9
mp
274 °C
溶解性
water: soluble
密度
2.130 g/cm3
λmax
650 nm
适用性
passes test for determination of calcium
应用
diagnostic assay manufacturing
hematology
histology
储存温度
room temp
SMILES字符串
Oc1cc(c2ccccc2c1N=Nc3c(O)c(cc4cc(ccc34)S(=O)(=O)O[Na])S(=O)(=O)O[Na])S(O)(=O)=O
InChI
1S/C20H14N2O11S3.2Na/c23-15-9-16(35(28,29)30)13-3-1-2-4-14(13)18(15)21-22-19-12-6-5-11(34(25,26)27)7-10(12)8-17(20(19)24)36(31,32)33;;/h1-9,23-24H,(H,25,26,27)(H,28,29,30)(H,31,32,33);;/q;2*+1/p-2
InChI key
WPDDXLRAJOPBIR-UHFFFAOYSA-L
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一般描述
羟基萘酚蓝二钠盐是一种化合物，属于偶氮染料类，常用作 pH 指示剂。它以蓝色小晶体形式存在。 Hydroxy naphthol blue is suitable for the quantification of metal leaching in metal affinity chromatography. 在pH 12-13的范围内：在钙离子存在下，它由蓝色变为粉红色，在乙二胺四乙酸二钠（EDTA）存在下由蓝色变为深蓝色。[1]
警示用语：
Warning
危险声明
危险分类
Eye Irrit. 2
储存分类代码
11 - Combustible Solids
WGK
WGK 3
其他客户在看
Food Chemicals Codex, Volumes 2-3
Food Chemicals Codex, 2-3 null
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Does this product consist of having Hydroxy Naphthol Blue deposited on crystals of Sodium Chloride in the concentration of about 1%?
1 answer-
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Can solutions of 219916 (Naphthol Blue disodium salt) be prepared in water and kept for several days at room temperature?
1 answer-
Solution stability studies for products sold as dry dyes are not conducted. The stability of the solution can vary greatly, from being stable for several days, weeks, or even years to failing after a couple of days. It is advisable to prepare the solution fresh and use it on the day of testing. After 1 week, preparing another fresh solution is recommended. Running tests on the freshly prepared solution and previously prepared solutions can help determine their effectiveness over time. If there is any difference between the freshly prepared solution and solutions that were previously prepared, it would provide the necessary insights. This approach is commonly used in research and development to assess solution stability over time.
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