Description

Dl-Alanine-15N CAS NO 71261-64-8 is a stable isotope-labeled analog of the amino acid alanine, where the nitrogen atom is enriched with the 15N isotope. This labeling is critical for advanced research applications requiring precise molecular tracking and quantification. It is an essential biochemical tool for scientists in pharmaceutical development, metabolic research, and analytical chemistry who require high-purity, isotopically defined compounds for their studies.

Application

• Nuclear Magnetic Resonance (NMR) Spectroscopy: Serves as a crucial internal standard and probe for studying protein structure, dynamics, and molecular interactions.
• Mass Spectrometry (MS) & Quantitative Proteomics: Used as a stable isotope-labeled standard for the accurate quantification of peptides, proteins, and metabolites.
• Metabolic Pathway Tracing: Enables the detailed study of nitrogen metabolism, amino acid synthesis, and degradation pathways in biological systems.
• Pharmaceutical Research & Development: Employed in drug metabolism and pharmacokinetics (DMPK) studies to trace the fate of drug molecules containing alanine moieties.
• Biochemical Research: Acts as a labeled precursor or building block in enzymatic studies and the synthesis of more complex labeled biomolecules.
• Nutritional Science: Used in research to investigate protein turnover, amino acid requirements, and metabolic flux in nutritional studies.

Basic Information

Product Name	Dl-Alanine-15N
CAS No.	71261-64-8
Molecular Formula	C₃H₇¹⁵NO₂
Molecular Weight	90.08 g/mol (for ¹⁵N labeled)
Synonyms	(±)-2-Amino(¹⁵N)propanoic acid; DL-α-Amino(¹⁵N)propionic acid; DL-Alanine-¹⁵N; Alanine-15N (racemic); Racemic Alanine-15N; (RS)-2-Aminopropanoic-15N acid; 15N-labeled DL-Alanine; 15N-Alanine
EINECS	Contact for details

Quality Control

Every batch of our Dl-Alanine-15N is produced and tested under strict quality management protocols to ensure exceptional isotopic and chemical purity, which is vital for sensitive research applications. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as isotopic enrichment (Atom % ¹⁵N), chemical purity (by HPLC), chiral purity, and residual solvent content. Our quality systems are designed to support research requiring reliable and traceable isotopic standards.

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 compound is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed in a dry environment to prevent absorption of moisture, which can affect stability and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Isotopic Enrichment (Atom % ¹⁵N)	≥ 98%
Assay (HPLC)	≥ 98.0%
Optical Purity (Chiral HPLC)	Racemic mixture (DL-form)
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.