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HomeProduct name listXylenol orange tetrasodium salt

Xylenol orange tetrasodium salt

Synonym(s):3,3′′-Bis[bis(carboxymethyl)aminoethyl] cresol sulfone phtrane sodium salt;3,3′-Bis[N,N-bis(carboxymethyl)aminomethyl]-o-cresolsulfonephthalein tetrasodium salt;Xylenol orange tetrasodium salt

  • CAS NO.:3618-43-7
  • Empirical Formula: C31H33N2NaO13S
  • Molecular Weight: 696.66
  • MDL number: MFCD00044293
  • EINECS: 222-805-8
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-07-12 22:00:00
Xylenol orange tetrasodium salt Structural

What is Xylenol orange tetrasodium salt?

Chemical properties

red-brown to purple crystalline powder

The Uses of Xylenol orange tetrasodium salt

Xylenol Orange tetrasodium salt is used as a photometric reagent and a metal indicator. It is a versatile indicator for EDTA titrations in acidic range. It is a common organic reagent used as an indicator for metal titrations.

What are the applications of Application

Xylenol Orange tetrasodium salt is a fluorochrome useful in single and polychrome sequential labeling

General Description

It is an acid dye or a vital stain, that is used as a fluorescent marker of bone growth.

Purification Methods

It is generally contaminated with starting material (cresol red) and semi-xylenol orange. Purify it by ion-exchange chromatography using DEAE-cellulose, eluting with 0.1M NaCl solution, which will give the sodium salt [3618-43-7] . Cresol Red, semi-xylenol orange and iminodiacetic acid bands elute first. This procedure will give the sodium salt of the dye. To obtain the free acid, dissolve the salt in H2O and acidify it with AcOH. Filter it off, wash it with H2O and dry it first in air and then in a vacuum desiccator over P2O5 in the dark [Sato et al. Anal Chim Acta 94 317 1977]. [Beilstein 19 II 111, 19 III/IV 1135, 19/3 V 461.]

Properties of Xylenol orange tetrasodium salt

Melting point: 195 °C (dec.)(lit.)
Flash point: 93.3°C
storage temp.  room temp
solubility  510g/l
form  Solid
color  Red
Odor Odorless
PH 8.1 (10g/l, H2O, 20℃)
Water Solubility  510 g/L (20 ºC)
Stability: Stable, but may be moisture sensitive.
CAS DataBase Reference 3618-43-7(CAS DataBase Reference)
EPA Substance Registry System Glycine, N,N'-[(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[(6-hydroxy-5-methyl-3,1-phenylene)methylene]]bis[N-(carboxymethyl)-, tetrasodium salt (3618-43-7)

Safety information for Xylenol orange tetrasodium salt

Computed Descriptors for Xylenol orange tetrasodium salt

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