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S7422

Sigma-Aldrich

5-Sulfosalicylic acid dihydrate

BioXtra, ≥99.0%

Synonym(s):

2-Hydroxy-5-sulfobenzoic acid

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About This Item

Linear Formula:
HO3SC6H3-2-(OH)CO2H·2H2O
CAS Number:
Molecular Weight:
254.21
Beilstein:
650741
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.21

grade

BioPerformance Certified

Quality Level

product line

BioXtra

Assay

≥99.0%

impurities

≤0.0005% Phosphorus (P)
≤0.02% Insoluble matter

ign. residue

≤0.1%

mp

105-110 °C (lit.)

solubility

H2O: 1 M, clear, colorless

anion traces

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.1%

cation traces

Al: ≤0.002%
Ca: ≤0.005%
Cu: ≤0.0005%
Fe: ≤0.002%
K: ≤0.005%
Mg: ≤0.0005%
NH4+: ≤0.05%
Na: ≤0.005%
Pb: ≤0.001%
Zn: ≤0.0005%

functional group

carboxylic acid
sulfonic acid

SMILES string

[H]O[H].[H]O[H].OC(=O)c1cc(ccc1O)S(O)(=O)=O

InChI

1S/C7H6O6S.2H2O/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);2*1H2

InChI key

BHDKTFQBRFWJKR-UHFFFAOYSA-N

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General description

5-Sulfosalicylic acid dihydrate is a poly functional metal chelating agent. Within industry, it is used in the manufacture of organic catalysts and grease additives. Additionally, it serves as a colorimetric reagent for the detection of ferric ions, producing a violet color. This characteristic is particularly valuable for quantifying the amount of albumin in urine.

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Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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