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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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Ante Lončarić et al.
Foods (Basel, Switzerland), 9(1) (2020-01-17)
Micro matrix solid phase dispersion (micro-MSPD) was optimized by response surface methodology for the extraction of polyphenols from the peel of twelve traditional and eight commercial apple varieties grown in Croatia. The optimized micro-MSPD procedure includes the use of 0.2
Claudriana Locatelli et al.
Bioorganic & medicinal chemistry, 16(7), 3791-3799 (2008-02-26)
Gallic acid and gallates with the same number of hydroxyl groups and varying the length of the side carbon chain, with respective lipophilicity being defined through the ClogP values, were examined for their ability to induce apoptosis (through the DNA
Kristina Habschied et al.
Foods (Basel, Switzerland), 9(2) (2020-02-28)
Antioxidative molecules, such as polyphenols can preserve and prolong the freshness of packaged beers. The aim of this work was to assess the content of polyphenolic compounds (by Folin-Ciocalteu and standard European Brewery Convention method) in different types of industrially
Tarik El-Sayed Ali
European journal of medicinal chemistry, 44(11), 4385-4392 (2009-07-10)
The reaction of 5,6-diphenyl-3-hydrazino-1,2,4-triazine (1) with bis(methylthio)methylene]malononitrile (2) afforded 5-amino-1-(5,6-diphenyl-1,2,4-triazin-3-yl)-3-(methylthio)-1H-pyrazole-4-carbonitrile (3). Compound 3 reacted with thiourea to give 3,4-diaminopyrazolo[3,4-d]pyrimidine 5, which was treated with benzoyl chloride to give pyrazolo[5,4,3-kl]pyrimido[4,3-d]pyrimidine 6. Treatment of 3 with acetic anhydride produced 3-methylthio-pyrazolo[3,4-d]pyrimidine derivative 7
Giuliano E Pereira et al.
Frontiers in plant science, 11, 707-707 (2020-07-01)
Girdling is a traditional horticultural practice applied at fruit set or other phenological stages, and is used mostly as a vine management. In grapevines, it is used primarily for table grapes to improve berry weight, sugar content, color, and to

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