Description

n-2-4-Dnp-Dl-Citrulline Crystalline is a chemically modified derivative of the amino acid citrulline, specifically the 2,4-dinitrophenylhydrazone (DNP) derivative of DL-citrulline. This crystalline compound is a crucial analytical standard and research chemical used for the precise identification, quantification, and study of citrulline and related metabolic pathways. It is primarily utilized by research institutions, pharmaceutical R&D laboratories, and diagnostic manufacturers engaged in advanced biochemical analysis and method development.

Application

• Analytical Reference Standard: Serves as a primary standard for the calibration of HPLC, LC-MS, and other chromatographic systems in amino acid analysis.
• Biochemical Research: Used in studies of the urea cycle, nitric oxide synthase (NOS) activity, and protein citrullination processes relevant to autoimmune disease research.
• Pharmaceutical Development: Employed in the quality control and method validation for drugs or supplements containing citrulline or its analogs.
• Diagnostic Reagent Manufacturing: A key component in the formulation of test kits and assays for measuring citrulline levels in clinical and research samples.
• Metabolomics & Proteomics: Acts as a defined metabolite standard in mass spectrometry-based profiling of biological samples.
• Chemical Synthesis Intermediate: Used in the synthesis of more complex molecules for research purposes, leveraging its derivatized functional group.

Basic Information

Item	Details
Product Name	n-2-4-Dnp-Dl-Citrulline Crystalline
CAS No.	102783-65-3
Molecular Formula	C13H18N6O6
Molecular Weight	354.32 g/mol
Synonyms	DL-Citrulline 2,4-Dinitrophenylhydrazone; 2,4-DNP-DL-Citrulline; N-(2,4-Dinitrophenyl)hydrazono-DL-citrulline; Citrulline DNP Hydrazone; (2,4-Dinitrophenyl)hydrazone of DL-Citrulline; 2,4-DNPH derivative of DL-Citrulline; L-Citrulline, 2,4-dinitrophenylhydrazone (related); Amino acid derivative standard
EINECS	Contact for details

Quality Control

Our n-2-4-Dnp-Dl-Citrulline Crystalline is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and reliability for sensitive analytical applications. Each lot undergoes comprehensive testing, including identity confirmation by spectroscopic methods and purity assessment by chromatographic techniques. A Certificate of Analysis (COA) detailing specific results for purity, appearance, and other critical parameters is provided with every shipment to support your quality assurance and regulatory 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). Due to its light-sensitive and easily oxidized nature, prolonged exposure to light, air, or elevated temperatures should be avoided to maintain stability and purity. For long-term storage, consideration should be given to storing under an inert atmosphere.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Melting Point	Specification available upon request
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

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