Skip to Content
Merck
All Photos(2)

Key Documents

8.03258

Sigma-Aldrich

Bis(4-hydroxyphenyl) sulfone

for synthesis

Synonym(s):

Bis(4-hydroxyphenyl) sulfone, 4,4′-Sulfonyldiphenol, 4,4′-Dihydroxydiphenyl sulfone

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
[4-(HO)C6H4]2SO2
CAS Number:
Molecular Weight:
250.27
MDL number:
UNSPSC Code:
12352104
EC Index Number:
201-250-5

vapor pressure

<0.0001 Pa ( 20 °C)

Assay

≥98.0% (HPLC)

form

powder

autoignition temp.

≥400 °C

potency

2830 mg/kg LD50, oral (Rat)

pH

6.6-7.0 (20 °C, 100 g/L in H2O)

mp

242-247 °C

solubility

1.1 g/L

density

0.5-0.6 g/cm3 at 20 °C

bulk density

500 kg/m3

storage temp.

2-30°C

InChI

1S/C12H10O4S/c13-9-1-5-11(6-2-9)17(15,16)12-7-3-10(14)4-8-12/h1-8,13-14H

InChI key

VPWNQTHUCYMVMZ-UHFFFAOYSA-N

Analysis Note

Assay (HPLC, area%): ≥ 98.0 % (a/a)
Melting range (lower value): ≥ 242 °C
Melting range (upper value): ≤ 247 °C
Identity (IR): passes test

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Hazard Classifications

Repr. 1B

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH SVHC Candidate List

CAS No.

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