Description

Benzenemethanesulfonic Acid 4-Nitrophenyl Ester is a specialized chemical ester widely utilized as a key intermediate in organic synthesis and pharmaceutical research. Its primary value lies in its role as a versatile building block for constructing more complex molecules, particularly in the development of sulfonamide derivatives and active pharmaceutical ingredients (APIs). This high-purity intermediate is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries who require reliable, high-quality reagents for critical synthetic pathways.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of novel sulfonamide-based drugs and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in research and development for creating new herbicides, fungicides, and plant growth regulators.
• Biochemical Research: Acts as a substrate or inhibitor in enzymatic studies, particularly those involving sulfotransferases or esterases.
• Polymer Chemistry: Employed as a monomer or cross-linking agent in the development of specialty polymers with specific functional groups.
• Dye and Pigment Manufacturing: Functions as an intermediate in the production of specialized colorants and photographic chemicals.
• Material Science: Utilized in surface modification and the creation of advanced materials with tailored properties.

Basic Information

Product Name	Benzenemethanesulfonic Acid 4-Nitrophenyl Ester
CAS No.	50534-57-1
Molecular Formula	C₁₃H₁₁NO₅S
Molecular Weight	293.30 g/mol
Synonyms	4-Nitrophenyl benzenemethanesulfonate; p-Nitrophenyl tosylate; Tosyl 4-nitrophenyl ester; p-Nitrophenyl tosylate; 4-Nitrophenyl toluene-4-sulfonate; Benzenemethanesulfonic acid p-nitrophenyl ester; TSNP; (4-Nitrophenyl)methylbenzenesulfonate
EINECS	Contact for details

Quality Control

Every batch of Benzenemethanesulfonic Acid 4-Nitrophenyl Ester is manufactured under strict quality management systems and undergoes rigorous analytical testing to ensure it meets the highest standards of purity and consistency. Our products are suitable for research and development applications where precise chemical properties are critical. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent degradation from atmospheric moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.