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Merck
CN

S0640

Sigma-Aldrich

5-Sulfosalicylic acid dihydrate

ACS reagent, 99.0-101.0%

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
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grade

ACS reagent

Assay

99.0-101.0%

impurities

≤0.02% Insoluble matter
≤0.04% Salicylic acid (HOC6H4COOH)

ign. residue

≤0.1%

mp

105-110 °C (lit.)

anion traces

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.02%

cation traces

Fe: ≤0.001%
heavy metals (as Pb): ≤0.002%

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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