1945-77-3Cc1c(C2(c3cc(C(C)C)c(O)c(CN(CC(=O)[O-])CC(=O)[O-])c3C)OS(=O)(=O)c3ccccc32)cc(C(C)C)c(O)c1CN(CC(=O)[O-])CC(=O)[O-].[Na+].[Na+].[Na+].[Na+]DIZZDZCUMBBRSG-UHFFFAOYSA-JRN given refers to tetra-Na salt
1945-77-3DTXSID80889451化学的特性green-brown crystalline powder
安全情報は参考情報です。供給元の安全データシート(SDS)、適用法令、専門家による評価に代わるものではありません。
This chemical does not meet GHS hazard criteria for 100% (4 of 4) of all reports.
Not Classified
Aggregated GHS information provided per 4 reports by companies from 1 notifications to the ECHA C&L Inventory.
Chemical: Glycine, N,N'-[3H-2,1-benzoxathiol-3-ylidenebis[[6-hydroxy-2-methyl-5-(1-methylethyl)-3,1-phenylene]methylene]]bis[N-(carboxymethyl)-, S,S-dioxide, tetrasodium salt
Glycine, N,N'-[(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[[6-hydroxy-2-methyl-5-(1-methylethyl)-3,1-phenylene]methylene]]bis[N-(carboxymethyl)-, tetrasodium salt: Does not have an individual approval but may be used under an appropriate group standard
Metal indicators are organic compounds that form specifically colored metal ion complexes in aqueous media. These dye reactions can be employed for detection of the equivalence point in volumetry (complexometry), as well as for concentration determinations in colorimetry or photometry. Methylthymol blue is used for the complexometric determination of Ba, Bi, Ca, Cd, Cu, Fe, Hg, In, lanthanides, Mg, Mn, Pb, Sc, Sn, Th, Tl, Zn, and Zr. It is used for the photometric determination of Al, Be, Bi, Ca, Co, Cr, Cu, Fe, Ga, In, lanthanides, Mg, Mn, Ni, Pb, Pd, Sc, Th, U, V, Y, Zn, and Zr. [Ullmann]
用途キレート滴定指示薬。
使用Methylthymol Blue sodium salt is used as thymol-containing organic dye. It is used as an indicator for complexometry. It is used in determination of sulfate in rainwater. It combines with silica gel and aids in the separation and preconcentration of trace amounts of heavy metals from some salts.
純化方法Methyl Thymol Blue, sodium salt [1945-77-3] M 844.8, 1.89 x 104 at 435nm, pH 5.5, 252525 25 25 25 25pK 1 3.0, pK 2 3.3, pK 3 3.8, pK 4 7.4 (pK 4 7.2) , pK 5 11.5 pK 6 13.4. The starting material for synthesis is Thymol Blue. Purify it as for Xylenol Orange on in “Heterocyclic Compounds”, Chapter 4. [Tereshin et al. J Anal Chem USSR (Engl Trans) 20 1138 1965, K.rbl & Kakác Collect Czech Chem Commun 23 889 1958, Beilstein 19/8 V 2830.]
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