The vast world of industrial chemistry relies on a complex network of intermediate compounds that serve as foundational building blocks for a myriad of products. Within the vibrant sector of dyes and pigments, specific intermediates are indispensable for achieving the desired coloristic effects and performance characteristics. One such critical compound is 1-(3-Sulfophenyl)-3-methyl-5-pyrazolone, identified by CAS number 119-17-5. This article is tailored for procurement professionals, R&D chemists, and formulation scientists who seek to understand and source this vital dye intermediate.

As a key component in the synthesis of various high-quality dyes, 1-(3-Sulfophenyl)-3-methyl-5-pyrazolone plays a significant role in sectors ranging from textiles to printing inks. Understanding its properties, applications, and the advantages of sourcing it from reliable manufacturers is crucial for optimizing production processes and product quality.

Chemical Profile and Properties

1-(3-Sulfophenyl)-3-methyl-5-pyrazolone is characterized by its physical appearance as a light yellow crystalline powder. Its chemical formula is C10H10N2O4S, with a molecular weight of 254.26. Key properties include:

  • Melting Point: A high melting point of 335°C (lit.), indicating thermal stability during processing.
  • Purity: Typically supplied with a purity of ≥99.0%, ensuring consistent chemical reactions and predictable outcomes in dye synthesis.
  • Storage: Recommended to be stored sealed in a cool, dry place, preserving its integrity and performance.
  • CAS Number: 119-17-5, a unique identifier crucial for procurement and regulatory compliance.

These attributes make it a preferred choice for manufacturers looking to buy reliable chemical intermediates. When sourcing this material, paying close attention to these specifications is essential to ensure it meets the demanding requirements of dye production.

Applications in Dye and Pigment Industries

The primary utility of 1-(3-Sulfophenyl)-3-methyl-5-pyrazolone lies in its application as an intermediate for synthesizing specific dyes and pigments. Its structure is particularly well-suited for:

  • Acid Dyes: It is a key precursor in the production of important acid dyes such as C.I. Acid Red 183 and C.I. Acid Red 186. These dyes are vital for imparting vibrant and durable colors to wool, silk, nylon, and other protein-based or polyamide materials. Buyers seeking these specific dye outputs will find this intermediate critical.
  • Reactive Dyes: The compound also serves as a building block in the synthesis of certain reactive dyes. These dyes are prized for their ability to form covalent bonds with textile fibers, offering excellent wash fastness and color brilliance, which is highly valued in the fashion and apparel industries.
  • Pigment Manufacturing: Beyond soluble dyes, this pyrazolone derivative contributes to the development of specific organic pigments. These pigments are used in various applications, including printing inks, paints, and plastics, where high color strength and stability are required.

For R&D scientists, its unique chemical structure also presents opportunities for exploration in novel material development. When considering purchasing this chemical, understanding these diverse application areas helps in precise material selection for specific project goals.

Procurement Guidance for B2B Buyers

When looking to buy 1-(3-Sulfophenyl)-3-methyl-5-pyrazolone, B2B purchasers should focus on securing a reliable supply from experienced manufacturers. Key considerations include:

  • Supplier Reputation: Partnering with established manufacturers known for consistent quality and adherence to international standards.
  • Purity Levels: Ensuring the product meets the required purity, typically 99.0% or higher, for optimal performance.
  • Pricing and Volume: Negotiating competitive prices for bulk orders is crucial for cost-effective manufacturing. Many buyers turn to manufacturers in China for cost advantages.
  • Technical Documentation: Availability of comprehensive technical data sheets (TDS) and safety data sheets (SDS) is a must for proper handling and application.

By carefully evaluating suppliers and product specifications, businesses can ensure they obtain a high-quality intermediate that contributes to the success of their dye and pigment products. For those ready to purchase, reaching out to our team for a quote on this essential chemical is a step towards securing a dependable supply.

In summary, 1-(3-Sulfophenyl)-3-methyl-5-pyrazolone is a critical intermediate that underpins the quality and performance of many commercially important dyes and pigments. Its consistent availability and high purity are key drivers for manufacturers in this sector.