Description

St 91 CAS NO 4751-48-8 is a high-purity chemical intermediate essential for advanced synthesis and research applications. Its consistent quality and reliable performance make it a critical component for manufacturers requiring precise and reproducible results. This product is primarily utilized by the pharmaceutical, agrochemical, and specialty chemical industries for the development of active ingredients and complex organic molecules.

Application

• Pharmaceutical Synthesis: A key building block in the production of active pharmaceutical ingredients (APIs) and novel drug candidates.
• Agrochemical Manufacturing: Used in the synthesis of advanced pesticides, herbicides, and plant growth regulators.
• Specialty Chemical Intermediates: Serves as a precursor for dyes, pigments, and performance chemicals.
• Research & Development: A valuable reagent in academic and industrial R&D labs for exploring new synthetic pathways.
• Material Science: Employed in the creation of advanced polymers and functional materials with specific properties.

Basic Information

Product Name	St 91
CAS No.	4751-48-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	St 91; 4751-48-8; 2,4,6-Triisopropylbenzenesulfonyl chloride; 2,4,6-Triisopropylbenzenesulfonyl chloride; TIPS-Cl; TIPS chloride; Triisopropylbenzenesulfonyl chloride; 2,4,6-Triisopropylbenzene-1-sulfonyl chloride
EINECS	Contact for details

Quality Control

Our St 91 is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet the exacting standards of our global clientele. A Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in the original packaging or amber glass until use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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