5-Sulfosalicylic acid

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.

Sulfosalicylic acid

Names
IUPAC name 2-Hydroxy-5-sulfobenzoic acid
Identifiers
CAS Number	97-05-2 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:68555
ChEMBL	ChEMBL229241 Y
ChemSpider	7046 Y
ECHA InfoCard	100.002.324
EC Number	202-555-6
KEGG	C16199 Y
PubChem CID	7322
UNII	L8XED79U3U Y
CompTox Dashboard (EPA)	DTXSID7059145
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
SMILES O=C(O)c1cc(ccc1O)S(=O)(=O)O
Properties
Chemical formula	C7H6O6S
Molar mass	218.185 g/mol
Melting point	120 °C (248 °F; 393 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

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