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27645

Sigma-Aldrich

Gallic acid monohydrate

≥99% (HPLC)

Synonym(s):

3,4,5-Trihydroxybenzoic acid monohydrate

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About This Item

Linear Formula:
(HO)3C6H2CO2H · H2O
CAS Number:
Molecular Weight:
188.13
Beilstein:
2050274
EC Number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.21

Quality Level

Assay

≥99% (HPLC)

form

solid

impurities

7-12% water (Karl Fischer)

ign. residue

≤0.1% (as SO4)

mp

252 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤200 mg/kg
sulfate (SO42-): ≤100 mg/kg

SMILES string

OC(=O)c1cc(O)c(O)c(O)c1

InChI

1S/C7H6O5/c8-4-1-3(7(11)12)2-5(9)6(4)10/h1-2,8-10H,(H,11,12)/p-1

InChI key

LNTHITQWFMADLM-UHFFFAOYSA-M

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General description

Gallic acid monohydrate is a phenolic acid. It is a planar molecule with two intramolecular hydrogen bonds and five intermolecular hydrogen bonds.

Application

Gallic acid monohydrate can be used as a reducing agent to synthesize Tin oxide (SnO2) nanoparticles via the precipitation method using stannous chloride as a precursor salt.

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

482.0 °F - closed cup

Flash Point(C)

250 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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