Skip to Content
Merck
All Photos(1)

Key Documents

8.00737

Sigma-Aldrich

3,5-Dihydroxybenzoic acid

for synthesis

Synonym(s):

3,5-Dihydroxybenzoic acid, 5-Carboxyresorcinol

Sign Into View Organizational & Contract Pricing
All Photos(1)

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)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service