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Pyridine Sulfur Trioxide | 26412-87-3

Cas No :

26412-87-3

Molecular Weight :

159.16 G/Mol

Molecular Formula :

C5H5NO3S

Solubility :

Soluble In Polar Organic Solvents

Description :

Overview of Pyridine Sulfur Trioxide

Pyridine Sulfur Trioxide is a solid complex formed by the reaction of sulfur trioxide with pyridine. It is a mild and controlled sulfonating agent widely used in organic synthesis for introducing sulfonyl and sulfate groups into organic molecules.

This compound is mainly applied in pharmaceutical intermediates, dye chemistry, agrochemical synthesis, and research laboratories. Pyridine Sulfur Trioxide is a technical and laboratory reagent and is not intended for food, fragrance, or cosmetic use.

 

Application of Pyridine Sulfur Trioxide

Sulfonation & Sulfation Reactions

  • Used as a selective sulfonating and sulfating agent in organic synthesis.

  • Enables controlled introduction of sulfonic acid or sulfate ester groups.

  • Preferred over free sulfur trioxide due to better handling and selectivity.

  • Can be interlinked with related products such as Sulfur Trioxide, Pyridine, Chlorosulfonic Acid, Methanesulfonic Acid, and Sulfonating Agents available on ChemicalBull.

 

Pharmaceutical & Agrochemical Applications

  • Used in the synthesis of API intermediates and agrochemical compounds requiring sulfonation.

  • Plays a role in improvingthe  solubility and bioavailability of drug intermediates.

  • Applied in multi-step synthesis processes in controlled conditions.

 

Research & Speciality Chemical Applications

  • Widely used in academic and industrial research laboratories.

  • Suitable for reaction development, method optimisation, and functional group modification.

  • Common reagent in dye and pigment chemistry research.

 

Safety and Handling Guidelines

  • Handle only in a fume hood

  • Use gloves, goggles, and protective clothing

  • Avoid inhalation and moisture exposure

  • Store in a cool, dry, and well-ventilated place

  • Keep container tightly closed

  • Follow MSDS and chemical safety procedures strictly

 

Where to Buy Pyridine Sulfur Trioxide?

Pyridine Sulfur Trioxide Manufacturer

Manufactured by speciality chemical producers under controlled synthesis to ensure reactivity, purity, and stability.

 

Pyridine Sulfur Trioxide Supplier & Distributor

ChemicalBull Pvt. Ltd. supplies Pyridine Sulfur Trioxide for pharmaceutical, agrochemical, dye, and research applications in domestic and export markets.

 

MSDS for Pyridine Sulfur Trioxide

The Material Safety Data Sheet (MSDS) is available on request and provides detailed information on hazards, storage, handling, and disposal.

 

Frequently Asked Questions (FAQs)

  1. What is Pyridine Sulfur Trioxide used for?

    It is used as a sulfonating and sulfating agent in organic synthesis.

  2. Why is Pyridine Sulfur Trioxide preferred over sulfur trioxide?

    It offers better control, easier handling, and reduced risk compared to free sulfur trioxide.

  3. Is Pyridine Sulfur Trioxide hazardous?

    Yes, it is reactive and moisture-sensitive and must be handled with proper safety measures.

  4. Is it suitable for large-scale industrial use?

    It is mainly used in controlled industrial and laboratory-scale synthesis.

  5. Which products can be interlinked with Pyridine Sulfur Trioxide?

    Sulfur Trioxide, Pyridine, Chlorosulfonic Acid, Methanesulfonic Acid, Sulfonating Agents, and Pharmaceutical Intermediates.

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