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8.22302

Sigma-Aldrich

Pyrogallol

for synthesis

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Synonym(s):
Pyrogallol, Pyrogallic acid, 1,2,3-Trihydroxybenzene
Linear Formula:
C6H3(OH)3
CAS Number:
Molecular Weight:
126.11
MDL number:
EC Index Number:
201-762-9

vapor pressure

2-4 hPa ( 140 °C)

Quality Level

Assay

≥99% (acidimetric)

form

solid

potency

790 mg/kg LD50, oral (Rat)

pH

4-5 (20 °C, 50 g/L in H2O)

bp

309 °C/1013 hPa

mp

131-135 °C

solubility

400 g/L

density

1.45 g/cm3 at 20 °C

bulk density

600 kg/m3

storage temp.

2-30°C

InChI

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

InChI key

WQGWDDDVZFFDIG-UHFFFAOYSA-N

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1 of 4

This Item
2540021.07534P0381
Pyrogallol for synthesis

Sigma-Aldrich

8.22302

Pyrogallol

Pyrogallol ACS reagent

Sigma-Aldrich

254002

Pyrogallol

Pyrogallol red metal indicator

Supelco

1.07534

Pyrogallol red

Pyrogallol ≥98% (HPLC)

Sigma-Aldrich

P0381

Pyrogallol

assay

≥99% (acidimetric)

assay

-

assay

-

assay

≥98% (HPLC)

form

solid

form

solid

form

solid

form

powder

pH

4-5 (20 °C, 50 g/L in H2O)

pH

-

pH

-

pH

5.8 (10 g/L)

bp

309 °C/1013 hPa

bp

309 °C (lit.)

bp

-

bp

309 °C (lit.)

mp

131-135 °C

mp

133-134 °C (lit.)

mp

>300 °C

mp

133-134 °C (lit.)

Analysis Note

Assay (acidimetric): ≥ 99.0 %
Melting range (lower value): ≥ 132 °C
Melting range (upper value): ≤ 135 °C
Identity (IR): passes test

Pictograms

Exclamation markHealth hazard

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


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