5-Sulfosalicylic acid

Sulfosalicylic acid
IUPAC name 2-Hydroxy-5-sulfobenzoic acid
Identifiers
CAS number	97-05-2 Y
ChemSpider	7046 Y
UNII	L8XED79U3U Y
KEGG	C16199 Y
ChEMBL	CHEMBL229241 Y
Jmol-3D images	Image 1
SMILES O=C(O)c1cc(ccc1O)S(=O)(=O)O
InChI InChI=1S/C7H6O6S/c8-6-2-1-4(14(11,12)13)3-5(6)7(9)10/h1-3,8H,(H,9,10)(H,11,12,13) Y Key: YCPXWRQRBFJBPZ-UHFFFAOYSA-N Y InChI=1/C7H6O6S/c8-6-2-1-4(14(11,12)13)3-5(6)7(9)10/h1-3,8H,(H,9,10)(H,11,12,13) Key: YCPXWRQRBFJBPZ-UHFFFAOYAD
Properties
Molecular formula	C7H6O6S
Molar mass	218.185 g/mol
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Sulfosalicylic acid is used in urine tests to determine urine protein content. The chemical causes the precipitation of dissolved proteins, which is measured from the degree of turbidity.

It is also used for integral colour anodizing.

With water it is used as a shuttle solution for the CAS assay to test for siderophore.

See also

• Salicylic acid