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8.00737

Sigma-Aldrich

3,5-Dihydroxybenzoic acid

for synthesis

Synonym(s):

3,5-Dihydroxybenzoic acid, 5-Carboxyresorcinol

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About This Item

Empirical Formula (Hill Notation):
C7H6O4
CAS Number:
99-10-5
Molecular Weight:
154.12
MDL number:
MFCD00002512
UNSPSC Code:
12352106
EC Index Number:
202-730-7
NACRES:
NA.22

Quality Level

200

Assay

≥98.0% (acidimetric)

form

solid

autoignition temp.

>500 °C (DIN 51794)

potency

4160 mg/kg LD50, oral (Rat)

pH

2.3 (25 °C, 10 g/L in H2O)

mp

234-238 °C

solubility

84 g/L

bulk density

700 kg/m3

storage temp.

2-30°C

InChI

1S/C7H6O4/c8-5-1-4(7(10)11)2-6(9)3-5/h1-3,8-9H,(H,10,11)

InChI key

UYEMGAFJOZZIFP-UHFFFAOYSA-N

Analysis Note

Assay (acidimetric): ≥ 98.0 %
Melting range (lower value): ≥ 234 °C
Melting range (upper value): ≤ 238 °C
Identity (IR): passes test

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315 - H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

392.0 °F - closed cup

Flash Point(C)

200 °C - closed cup

Certificates of Analysis (COA)

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