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254002

Sigma-Aldrich

Pyrogallol

ACS reagent

Synonym(s):

1,2,3-Trihydroxybenzene, 2,3-Dihydroxyphenol, Pyrogallic acid

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About This Item

Linear Formula:
C6H3(OH)3
CAS Number:
87-66-1
Molecular Weight:
126.11
Beilstein:
907431
EC Number:
201-762-9
MDL number:
MFCD00002192
UNSPSC Code:
12352100
PubChem Substance ID:
24855345
NACRES:
NA.21
Pricing and availability is not currently available.

grade

ACS reagent

Quality Level

200

vapor density

4.4 (vs air)

vapor pressure

10 mmHg ( 167.7 °C)

form

solid

ign. residue

≤0.005%

bp

309 °C ((lit.))
309 °C (lit.)

mp

133-134 °C ((lit.))
133-134 °C (lit.)

density

1.450 g/cm3 at 20 °C

anion traces

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.005%

cation traces

Fe: ≤0.001%
heavy metals (as Pb): ≤5 ppm

SMILES string

Oc1cccc(O)c1O

InChI

[1S/C6H6O3/c7-4-2-1-3-5(8)6(4)9/h1-3,7-9H]
1S/C6H6O3/c7-4-2-1-3-5(8)6(4)9/h1-3,7-9H

InChI key

[WQGWDDDVZFFDIG-UHFFFAOYSA-N]
WQGWDDDVZFFDIG-UHFFFAOYSA-N

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Application

Metal-complexing agent
Pyrogallol undergoes quick autooxidation in alkaline solution. Due to this property, its alkaline solution is generally used for the removal of oxygen from gases.[1] Pyrogallol may also be used to prepare pyrogallol monomethyl ether via methylation[2] and gallacetophenone via a modified Nencki reaction.[3]

Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Muta. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW7751
MKCT7156
MKCT1701
MKCR5864
MKCR0613

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Pyrogallol 1-monomethyl ether
Surrey AR
Organic Syntheses, 26, 90-90 (1946)
Gianluca Dimartino
Journal of AOAC International, 90(5), 1340-1345 (2007-10-25)
A convenient method is presented for determination of vitamin D in natural cheese, processed cheese, milk, cereals, noncarbonated soft drinks, and juice by liquid chromatography/ mass spectrometry (LC/MS). Samples were saponified, extracted, evaporated, redissolved in acetonitrile, and injected into an
Sanja Matić et al.
Mutation research, 755(2), 81-89 (2013-07-09)
The present study was undertaken to investigate the hepatoprotective effect of the methanol extract of Cotinus coggygria Scop. in rats exposed to the hepatotoxic compound pyrogallol. Assessed with the alkaline version of the comet assay, 1000 and 2000mg/kg body weight
Gallacetophenone
Badhwar IC and Venkataraman K
Organic Syntheses, 14, 40-40 (1934)
Involvement of the superoxide anion radical in the autoxidation of pyrogallol and a convenient assay for superoxide dismutase.
Marklund S and Marklund G.
European Journal of Biochemistry, 47(3), 469-474 (1974)
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Protocols

Enzymatic Assay of Peroxidase (EC 1.11.1.7) 2,2'-Azino-bis(3-Ethylbenzthiazoline-6-Sulfonic Acid) as a Substrate

To standardize a procedure for the assay of Peroxidase using 2,2'-Azino-bis(3-Ethylbenzthiazoline-6-Sulfonic Acid) as a substrate.

Enzymatic Assay of Peroxidase (EC 1.11.1.7)

This procedure is for the determination of Peroxidase enzymatic activity using Pyrogallol as the substrate.

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