4-methylbenzenesulfonic acid;sodium salt

Basic Information

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CAS Number

657-84-1

Molecular Formula

C7H7NaO3S

Molecular Weight

194.18 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Melting Point

106-107 DEG C /ANHYDROUS/

Boiling Point

140 DEG C @ 20 MM HG

Density

1.55 g/cm3 (20℃)

Solubility

818g/l soluble

SMILES

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[Na+].Cc1ccc(cc1)S(=O)(=O)[O-]

InChI

1S/C7H8O3S.Na/c1-6-2-4-7(5-3-6)11(8,9)10;/h2-5H,1H3,(H,8,9,10);/q;+1/p-1

InChIKey

KVCGISUBCHHTDD-UHFFFAOYSA-M

LogP

2.32250

Complexity

211

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

Stability

Stable. Incompatible with strong oxidizing agents.

Sensitiveness

对湿度敏感

Synonyms & References

English

Sodium p-toluenesulfonate
p-Toluenesulfonic acid sodium salt
Toluene-4-sulfonic acid sodium salt
4-Methylbenzenesulfonic acid sodium salt
Sodium 4-methylbenzenesulfonate
p-Toluenesulfonic acid
Sodium tosylate
Sodium toluenesulfonate
Tosylate, sodium
p-Toluenesulfonic acid, sodium salt
Naxonate hydrotrope
Sodium toluene-4-sulphonate
Cyclophil STS 70
Eltesol ST 90
Eltesol ST 34
Pilot STS 32
Sodium p-tolylsulfonate
Sodium toluenesulphonate
Sodium toluene-p-sulphonate
Sodium methylbenzenesulfonate
Sodium paratoluene sulphonate
Benzenesulfonic acid, 4-methyl-, sodium salt
Sodium
p-Toluenesulfonic Acid Sodium Salt
4-methylbenzenesulfonic acid;sodium salt
4-methylbenzenesulfonic acid
sodium salt (1:1)

MDL Number

MFCD00064388

Customs Code

29041000

FAQ

What is 4-methylbenzenesulfonic acid; sodium salt (CAS: 657-84-1)?

4-Methylbenzenesulfonic acid; sodium salt (CAS: 657-84-1) is a sodium salt of 4-methylbenzenesulfonic acid, commonly used as a catalyst in organic synthesis. It has the chemical formula C7H7NaO3S and is a white crystalline solid with strong acidic properties due to the sulfonic acid group. It is soluble in water and is often employed in industrial and research settings for its reactivity and stability.

What are the main uses of 4-methylbenzenesulfonic acid; sodium salt (CAS: 657-84-1)?

4-Methylbenzenesulfonic acid; sodium salt (CAS: 657-84-1) is widely used in pharmaceutical synthesis, as a catalyst in polymerization reactions, and in the production of surfactants and dyes. It also finds applications in organic chemistry research for acid-catalyzed reactions and as a reagent in the synthesis of various derivatives. Its utility stems from its strong acidic nature and ability to enhance reaction efficiency.

Is 4-methylbenzenesulfonic acid; sodium salt (CAS: 657-84-1) safe?

4-Methylbenzenesulfonic acid; sodium salt (CAS: 657-84-1) is generally considered safe when handled properly. However, it can cause skin and eye irritation, so protective gloves, goggles, and a lab coat are recommended. Inhalation of dust should be avoided, and proper ventilation is necessary. It is important to follow safety guidelines and standards to ensure safe usage in laboratories and industrial environments.

How should 4-methylbenzenesulfonic acid; sodium salt (CAS: 657-84-1) be stored?

4-Methylbenzenesulfonic acid; sodium salt (CAS: 657-84-1) should be stored in a cool, dry, and well-ventilated area, away from moisture and direct light. It is best kept in a sealed container made of glass or plastic to prevent contamination. Maintaining storage conditions below 25°C and ensuring low humidity levels will help preserve its stability and effectiveness over time.