Description

Sulfapyridine-13C6 CAS NO 1228182-45-3 is a stable isotope-labeled analog of the antibacterial agent sulfapyridine, where six carbon atoms are replaced with the carbon-13 isotope. This compound is an essential internal standard and reference material for the precise quantification of sulfapyridine in complex matrices using advanced analytical techniques like LC-MS/MS. It is primarily required by pharmaceutical R&D laboratories, contract research organizations (CROs), and analytical testing facilities engaged in drug metabolism studies, pharmacokinetic research, and regulatory compliance testing.

Application

• Internal Standard for Mass Spectrometry: Serves as a critical, non-interfering internal standard for the accurate quantification of sulfapyridine in biological fluids (plasma, urine) and environmental samples via LC-MS or GC-MS.
• Drug Metabolism and Pharmacokinetics (DMPK): Used in tracer studies to investigate the absorption, distribution, metabolism, and excretion (ADME) profile of sulfapyridine.
• Veterinary Pharmaceutical Analysis: Enables precise monitoring of sulfapyridine residues in food-producing animals to ensure compliance with maximum residue limits (MRLs).
• Clinical Research and Bioanalysis: Facilitates reliable measurement of drug concentrations in patient samples during clinical trials for efficacy and safety assessments.
• Forensic and Toxicology Testing: Provides a definitive reference standard for the identification and quantification of sulfapyridine in forensic investigations.
• Method Development and Validation: Essential for developing, calibrating, and validating highly sensitive and specific analytical methods in regulated laboratories.
• Environmental Monitoring: Used to trace and quantify sulfapyridine and related compounds in water and soil samples as part of environmental impact studies.

Basic Information

Product Name	Sulfapyridine-13C6
CAS No.	1228182-45-3
Molecular Formula	13C6H11N3O2S
Molecular Weight	~269.29 g/mol
Synonyms	4-Amino-N-(pyridin-2-yl-13C6)benzenesulfonamide; 2-Sulfanilamidopyridine-13C6; Dagenan-13C6; M&B 693-13C6; Sulfapyridine (13C6); Sulfapyridine-13C6 (major); [13C6]-Sulfapyridine; 13C6 Labeled Sulfapyridine
EINECS	Contact for details

Quality Control

Every batch of Sulfapyridine-13C6 is manufactured and analyzed under strict quality management systems. We provide comprehensive analytical data to ensure the product meets the high standards required for isotopic purity and chemical identity in research and regulated environments. A detailed Certificate of Analysis (COA) is supplied with each shipment, reporting key parameters including isotopic enrichment (atom % 13C), chemical purity (by HPLC), and confirmation of structure (by NMR and MS).

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. For long-term storage, consider desiccant use and storage under inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥98.0%
Isotopic Enrichment	≥99 atom % 13C
Chemical Purity (by NMR)	≥95%
Water Content (KF)	≤1.0%
Residue on Ignition	≤0.1%

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