Description

p-Sulfoaniline-D4 is a deuterium-labeled derivative of sulfanilic acid, a key aromatic sulfonic acid. This isotopically labeled compound is essential for applications requiring high analytical precision and minimal background interference. It is primarily utilized by researchers and manufacturers in the pharmaceutical, agrochemical, and analytical chemistry industries for use as an internal standard in quantitative mass spectrometry and for tracing metabolic pathways.

Application

• Internal Standard for LC-MS/MS: Serves as a critical quantitative reference standard in liquid chromatography-tandem mass spectrometry for the accurate analysis of sulfonamide drugs and related compounds.
• Metabolic Pathway Tracing: Used in pharmacokinetic and drug metabolism studies to track the fate of sulfanilic acid derivatives in biological systems.
• Pharmaceutical Impurity Profiling: Employed in the development and validation of analytical methods to identify and quantify impurities and degradants in active pharmaceutical ingredients (APIs).
• Agrochemical Research: Facilitates the study of environmental fate, degradation, and residue analysis of sulfonamide-based pesticides and herbicides.
• Chemical Synthesis Intermediate: Acts as a labeled building block for the synthesis of more complex deuterated compounds for research purposes.
• NMR Spectroscopy: Provides a useful tool in nuclear magnetic resonance spectroscopy due to the distinct properties of deuterium atoms.

Basic Information

Product Name	p-Sulfoaniline-D4
CAS No.	1235219-21-2
Molecular Formula	C6D4H3NO3S
Molecular Weight	176.21 g/mol
Synonyms	4-Aminobenzenesulfonic Acid-d4; Sulfanilic Acid-d4; Aniline-2,3,5,6-d4-4-sulfonic Acid; 4-Amino-d4-benzenesulfonic Acid; p-Aminobenzenesulfonic Acid-d4; Deuterosulfanilic Acid; 2,3,5,6-Tetradeutero-4-aminobenzenesulfonic Acid
EINECS	Contact for details

Quality Control

Our p-Sulfoaniline-D4 is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure high chemical purity and isotopic enrichment, typically exceeding 98% chemical purity and 99% deuterium atom incorporation. Certificates of Analysis (COA) detailing NMR, HPLC, and MS results are provided to guarantee consistency and reliability for your critical research and development work.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Deuterium Enrichment (MS)	≥ 99.0 atom % D
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.