292362
4-Sulfophthalic acid trisodium salt
technical grade
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About This Item
Linear Formula:
NaO3SC6H3-1,2-(CO2Na)2
CAS Number:
Molecular Weight:
312.14
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
MDL number:
InChI
1S/C8H6O7S.3Na/c9-7(10)5-2-1-4(16(13,14)15)3-6(5)8(11)12;;;/h1-3H,(H,9,10)(H,11,12)(H,13,14,15);;;/q;3*+1/p-3
SMILES string
[Na+].[Na+].[Na+].[O-]C(=O)c1ccc(cc1C([O-])=O)S([O-])(=O)=O
InChI key
IWFDIIDATFUMQH-UHFFFAOYSA-K
grade
technical grade
functional group
sulfonic acid
General description
4-Sulfophthalic acid trisodium salt is formed as byproduct during the preparation of D&C Yellow No.10.
Application
4-Sulfophthalic acid trisodium salt has been used in the preparative separation of 3- and 4-sulfophthalic acid from a mixture by high-speed counter-current chromatography.
Other Notes
Remainder 3-sulfophthalic acid, trisodium salt
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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Adrian Weisz et al.
Journal of chromatography. A, 966(1-2), 111-118 (2002-09-07)
Two modes of high-speed counter-current chromatography (HSCCC) were applied to separate 3- and 4-sulfophthalic acid from a mixture. Conventional HSCCC was useful for the separation of up to several hundred milligram quantities of these positional isomers, while pH-zone-refining CCC was
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