Description

Sulfamonomethoxine-13C6 Hydrate (See Data Sheet) CAS NO 1416768-32-5 is a stable isotope-labeled analog of the veterinary sulfonamide antibiotic, sulfamonomethoxine, where six carbon atoms are replaced with the carbon-13 isotope. This compound is essential as a certified reference material and internal standard for precise quantitative analysis in mass spectrometry-based methods. It is primarily needed by analytical laboratories, contract research organizations (CROs), and pharmaceutical companies engaged in veterinary drug residue testing, pharmacokinetic studies, and method development and validation to ensure regulatory compliance and data accuracy.

Application

• Internal Standard for LC-MS/MS: Used as a high-purity, isotopically labeled internal standard for the accurate quantification of sulfamonomethoxine residues in food-producing animals (e.g., poultry, swine, cattle) to comply with maximum residue limits (MRLs).
• Metabolite Tracing & Pharmacokinetics: Enables precise tracking of drug metabolism and absorption, distribution, metabolism, and excretion (ADME) studies in veterinary research.
• Method Development & Validation: Critical for developing and validating robust, sensitive, and specific analytical methods in compliance with guidelines from agencies like the FDA and EMA.
• Quality Control & Reference Standard: Serves as a certified reference material (CRM) for calibrating equipment and verifying the accuracy and precision of in-house testing methods in quality control laboratories.
• Environmental Monitoring: Applied in research to detect and quantify trace levels of veterinary pharmaceutical pollutants in environmental samples such as water and soil.

Basic Information

Product Name	Sulfamonomethoxine-13C6 Hydrate (See Data Sheet)
CAS No.	1416768-32-5
Molecular Formula	C1213C6H16N4O4S • xH2O
Molecular Weight	~308.3 (Anhydrous Free Acid Basis)
Synonyms	4-Amino-N-(6-methoxy-4-pyrimidinyl)-13C6-benzenesulfonamide hydrate; Sulfamonomethoxine-13C6; [13C6]-Sulfamonomethoxine; Isotopically Labeled Sulfamonomethoxine; SMM-13C6; 13C6-Sulfamonomethoxine Hydrate; Sulfamonomethoxine (phenyl-13C6) Hydrate
EINECS	Contact for details

Quality Control

Our Sulfamonomethoxine-13C6 Hydrate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including NMR and mass spectrometry for isotopic enrichment verification and HPLC for chemical and isotopic purity. A comprehensive Certificate of Analysis (COA) detailing batch-specific results for identity, purity (HPLC, NMR), isotopic enrichment, and water content is provided. Our quality commitment ensures the material is suitable for its intended use as a high-grade reference standard.

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 product is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to minimize exposure to atmospheric humidity. For long-term storage, consider desiccants.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC)	Conforms to reference standard
Identification (MS)	Conforms to expected mass spectrum
Isotopic Enrichment	≥ 99 atom % 13C
Chemical Purity (HPLC)	≥ 98.0%
Isotopic Purity (HPLC/MS)	≥ 98.0%
Water Content (KF)	Reported on COA

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