4,4'-(1,1-Dioxido-3H-2,1-benzoxathiole-3,3-diyl)diphenol

Basic Information

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CAS Number

143-74-8

Molecular Formula

C19H14O5S

Molecular Weight

354.38 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Heterocyclic Compounds

Pharmaceutical Chemicals Pharmaceutical Intermediates Heterocyclic Intermediates

Fine Chemicals Dyes and Pigments Organic Dyes

Fine Chemicals Surfactants Anionic Surfactants

Basic Physical Properties

Melting Point

300 ºC

Boiling Point

>300°C

Water Solubility

0.77 g/L

Flash Point

>300°C

Solubility

1 M NaOH: soluble1mg/mL

Refractive Index

1.5300 (estimate)

SMILES

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Oc1ccc(cc1)C2(OS(=O)(=O)c3ccccc32)c4ccc(O)cc4

InChI

InChI=1S/C19H14O5S/c20-15-9-5-13(6-10-15)19(14-7-11-16(21)12-8-14)17-3-1-2-4-18(17)25(22,23)24-19/h1-12,20-21H

InChIKey

BELBBZDIHDAJOR-UHFFFAOYSA-N

LogP

3.108600000000002

pKa

7.9(at 25℃)

Topological Polar Surface Area

83.83 Å²

Hydrogen Bond Donor/Acceptor

2 / 5

Complexity

545

Safety Information

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GHS Hazard Pictograms

H315

H319

H335

Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Synonyms & References

English

Phenol Red
Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis-, S,S-dioxide
PHENOL RED FREE ACID CELL CULTURE TESTED
Phenol Red, indicator
Phenolsulfonephthalein
Phenolsulfonphthalein
PHENOL RED PAPER, PH 6.8-PH 8.4, LENGHT: 5M
PhenolRed,indicator,pure100GR
PhenolRed,indicator,pure25GR
PhenolRed,indicator,pure5GR
3,3-Bis(p-hydroxyphenyl)-3-H-2,1-benzoxathiol-1,1-dioxide
4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1λ6-benzoxathiol-3-yl]phenol
ACS
Phenol Red, ACS reagent
PSP
3,3-Bis(p-hydroxyphenyl)-3H-2,1-benzoxathiole 1,1-dioxide
PRGR
NR3C3
Phenol re
Phenolrde
fenolipuna
sulphental
sulphonthal
Sulfonphthal
PR
Phenolsulphonphthalein
PSP (indicator)
Phenolred
Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis-
Phenosulfophthalein
NSC10459

MDL Number

MFCD00003552

Customs Code

29349990

FAQ

What is 4,4'-(1,1-Dioxido-3H-2,1-benzoxathiole-3,3-diyl)diphenol (CAS: 143-74-8)?

4,4'-(1,1-Dioxido-3H-2,1-benzoxathiole-3,3-diyl)diphenol (CAS: 143-74-8) is a chemical compound with the formula C14H10O4S2. It consists of two phenol groups connected by a 1,1-dioxido-3H-2,1-benzoxathiole bridge, featuring sulfur and oxygen atoms. This compound is known for its antioxidant properties and is used in various industrial and research applications. Its structure makes it a valuable intermediate in organic synthesis.

What are the main uses of 4,4'-(1,1-Dioxido-3H-2,1-benzoxathiole-3,3-diyl)diphenol (CAS: 143-74-8)?

4,4'-(1,1-Dioxido-3H-2,1-benzoxathiole-3,3-diyl)diphenol (CAS: 143-74-8) is primarily used in pharmaceuticals as a precursor for drug development, in industrial applications for polymer synthesis, and in research as a chemical reagent. It also finds use in materials science for creating functional compounds and in the production of antioxidants due to its unique molecular structure and reactivity.

Is 4,4'-(1,1-Dioxido-3H-2,1-benzoxathiole-3,3-diyl)diphenol (CAS: 143-74-8) safe?

4,4'-(1,1-Dioxido-3H-2,1-benzoxathiole-3,3-diyl)diphenol (CAS: 143-74-8) is generally considered safe when handled properly. However, it may require precautions such as wearing gloves and goggles, and working in a well-ventilated area. Safety standards emphasize avoiding skin and eye contact, and its toxicity data suggests it is low to moderately hazardous. Always follow established safety protocols for handling chemical compounds.

How should 4,4'-(1,1-Dioxido-3H-2,1-benzoxathiole-3,3-diyl)diphenol (CAS: 143-74-8) be stored?

4,4'-(1,1-Dioxido-3H-2,1-benzoxathiole-3,3-diyl)diphenol (CAS: 143-74-8) should be stored in a cool, dry place away from light. Use airtight containers to prevent moisture absorption and contamination. It is stable under standard storage conditions but may degrade if exposed to high humidity or direct sunlight. Ensure proper labeling and storage in a chemically inert environment.