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254002

Pyrogallol

Name: Pyrogallol
Brand: SIAL

ACS reagent grade, solid

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

UNSPSC Code:

12352100

PubChem Substance ID:

24855345

NACRES:

NA.21

EC Number:

201-762-9

MDL number:

MFCD00002192

Beilstein/REAXYS Number:

907431

Form:

solid

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Properties

Product Name

Pyrogallol, ACS reagent

grade

ACS reagent

Quality Segment

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 (SO₄^2-): ≤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

Description

Application

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

Metal-complexing agent

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pictograms

GHS08,GHS07

signalword

Warning

hcodes

H302 + H312 + H332,H341,H412

pcodes

P273 - P280 - P301 + P312 - P302 + P352 + P312 - P304 + P340 + P312 - P308 + P313

Hazard Classifications

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

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c