Description

1-Phenyl-D5-Azo-2-Naphthol is a deuterated derivative of the classic azo dye, Sudan I, where five hydrogen atoms are replaced by deuterium. This isotopic labeling is crucial for enhancing analytical precision and stability in advanced research applications. It is primarily utilized by analytical chemists and researchers in the pharmaceutical and chemical industries who require high-fidelity internal standards for mass spectrometry and NMR spectroscopy.

Application

• As a stable isotopically labeled internal standard for the accurate quantification of Sudan I dye in complex matrices via LC-MS/MS.
• In metabolic pathway studies and pharmacokinetic research within pharmaceutical development to track drug metabolites.
• For NMR spectroscopy applications, where deuterium labeling reduces signal interference and simplifies spectral analysis.
• In forensic and food safety analysis to develop highly sensitive and specific methods for detecting banned azo colorants.
• As a key research chemical in the study of azo compound degradation, photostability, and environmental fate.
• For quality control and method validation in analytical laboratories requiring the highest standards of accuracy.

Basic Information

Product Name	1-Phenyl-D5-Azo-2-Naphthol
CAS No.	752211-63-5
Molecular Formula	C16H6D5N2O
Molecular Weight	~253.29 g/mol
Synonyms	Sudan I-d5; 1-[(Phenyl-d5)azo]-2-naphthalenol; 1-(Phenyl-d5)azo-2-naphthol; Deutero-Sudan I; [phenyl-D5]-Sudan I; Azo Dye Sudan I-d5; 1-Phenyl-d5-2'-hydroxy-1,2-azonaphthalene
EINECS	Contact for details

Quality Control

Our deuterated compounds are manufactured under strict quality systems to ensure isotopic purity and chemical integrity. Each batch is characterized by advanced analytical techniques including NMR and Mass Spectrometry to confirm deuterium incorporation and chemical purity. A comprehensive Certificate of Analysis (COA) detailing isotopic enrichment, chemical purity, and analytical results is provided with every shipment to support your research and compliance needs.

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.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Identification (MS)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Purity (D-content)	≥ 98 atom % D
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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