Description

Prontosil Hydrochloride CAS NO 140-14-7 is a historically significant sulfonamide antibiotic and azo dye. It serves as a key intermediate in the synthesis of modern sulfa drugs and is a valuable research chemical for studying the evolution of antimicrobial agents. This compound is essential for pharmaceutical R&D laboratories, chemical manufacturers, and academic institutions focused on medicinal chemistry and the history of chemotherapy.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of advanced sulfonamide-based antimicrobial agents.
• Biochemical Research: Used as a reference standard and model compound in studies of antibiotic mechanisms of action and bacterial resistance.
• Chemical Synthesis: Serves as a specialized building block for synthesizing azo dyes and other complex organic molecules.
• Academic & Historical Studies: Employed in educational and research settings to demonstrate the principles of chemotherapeutic drug development.

Basic Information

Product Name	Prontosil Hydrochloride
CAS No.	140-14-7
Molecular Formula	C12H13N5O2S·HCl
Molecular Weight	327.79 g/mol
Synonyms	4-[[(2,4-Diaminophenyl)azo]benzenesulfonamide hydrochloride; Prontosil Soluble; Sulfamidochrysoidine Hydrochloride; Azo Sulfamide Hydrochloride; Streptozon S; Prontosil Flavum; Prontosil Album; Prontosil Rubrum
EINECS	205-393-0

Quality Control

Our Prontosil Hydrochloride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling, to ensure it meets precise specifications for research and industrial use. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Reddish-brown to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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