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Sigma-Aldrich

4-Sulfophthalic acid trisodium salt

technical grade

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About This Item

Linear Formula:
NaO3SC6H3-1,2-(CO2Na)2
CAS Number:
3325-08-4
Molecular Weight:
312.14
MDL number:
MFCD00064384
UNSPSC Code:
12352100
PubChem Substance ID:
24857578
NACRES:
NA.22

grade

technical grade

SMILES string

[Na+].[Na+].[Na+].[O-]C(=O)c1ccc(cc1C([O-])=O)S([O-])(=O)=O

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

InChI key

IWFDIIDATFUMQH-UHFFFAOYSA-K

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

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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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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