Description

2-Naphthalene-D7-Sulfonic Acid is a deuterated derivative of naphthalene sulfonic acid, where seven hydrogen atoms are replaced with deuterium. This high-purity isotopically labeled compound is critical for applications requiring precise analytical tracking and minimal background interference. It is primarily utilized by research scientists and quality control laboratories in the pharmaceutical, agrochemical, and advanced materials sectors for use as an internal standard, tracer, or building block in synthesis.

Application

• Internal Standard for Mass Spectrometry (MS): Essential for quantitative analysis in LC-MS and GC-MS methods, providing high accuracy in pharmacokinetic and metabolomic studies.
• NMR Spectroscopy Solvent & Reagent: Used as a deuterated shift reagent or in solvent systems to eliminate proton signal interference in complex molecular analysis.
• Pharmaceutical Research & Development: Serves as a labeled precursor or intermediate in the synthesis of deuterated drug candidates for improved metabolic stability studies.
• Environmental & Chemical Tracing: Acts as a stable isotopic tracer in environmental fate studies, chemical reaction mechanisms, and industrial process monitoring.
• Polymer & Material Science: Employed in the development of specialty polymers and surfactants where deuterium labeling is needed for structural analysis.

Basic Information

Product Name	2-Naphthalene-D7-Sulfonic Acid
CAS No.	312623-89-5
Molecular Formula	C10D7HO3S
Molecular Weight	215.26 g/mol
Synonyms	2-Naphthalenesulfonic Acid-d7; Deuterated Naphthalene-2-sulfonic Acid; Naphthalene-2-sulfonic-1,3,4,5,6,7,8-d7 Acid; Perdeuterated 2-Naphthalenesulfonic Acid; 2-Naphthyl-D7-sulfonic Acid; 2-NS-d7; β-Naphthalenesulfonic Acid-d7
EINECS	Contact for details

Quality Control

Every batch of 2-Naphthalene-D7-Sulfonic Acid is manufactured and tested under strict quality management systems. We guarantee high chemical and isotopic purity, with comprehensive testing including NMR and Mass Spectrometry to confirm deuteration level and chemical identity. Certificates of Analysis (COA) detailing all specifications are provided and available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled under dry conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white powder or crystals
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Deuteration Degree (MS)	≥ 98 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.