Description

Sulfapyrazole CAS NO 852-19-7 is a sulfonamide derivative with a pyrazole ring, historically significant in the development of antibacterial agents. This compound serves as a crucial intermediate in pharmaceutical research and synthesis, offering a versatile scaffold for developing new therapeutic molecules. It is primarily required by research institutions, pharmaceutical development laboratories, and fine chemical manufacturers focused on antimicrobial research and specialty chemical production.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel sulfonamide-based drugs and active pharmaceutical ingredients (APIs).
• Antimicrobial Research: Used as a reference standard or starting material in academic and industrial research programs targeting bacterial infections.
• Biochemical Studies: Employed in studies investigating the structure-activity relationships (SAR) of sulfa drugs and their mechanisms of action.
• Fine Chemical Synthesis: A versatile intermediate for constructing complex heterocyclic compounds in medicinal and process chemistry.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method development in pharmaceutical analysis.

Basic Information

Product Name	Sulfapyrazole
CAS No.	852-19-7
Molecular Formula	C11H11N3O2S
Molecular Weight	249.29 g/mol
Synonyms	4-Amino-N-(1H-pyrazol-5-yl)benzenesulfonamide; 5-Sulfanilamidopyrazole; Sulfapyrazol; Sulfapyrazolum; N1-(1H-Pyrazol-5-yl)sulfanilamide; NSC 3298; Sulfapyrazol [INN-Spanish]; Sulfapyrazolum [INN-Latin]
EINECS	212-697-5

Quality Control

Our Sulfapyrazole is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles. We support compliance with cGMP guidelines for pharmaceutical intermediates and can provide material suitable for research and development purposes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep the container tightly sealed to protect from moisture and contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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