Description

Di-n-Butyl Phthalate (Ring-D4) is a deuterated internal standard of the common plasticizer di-n-butyl phthalate (DBP), where four hydrogen atoms on the aromatic ring are replaced with deuterium. This isotopic labeling is critical for ensuring analytical accuracy and reliability in quantitative mass spectrometry. It is an essential tool for researchers and quality control laboratories requiring precise measurement of DBP levels, particularly in sensitive applications. The compound is primarily used in analytical chemistry for method development, validation, and trace-level quantification in complex matrices.

Application

• Internal Standard for GC-MS/LC-MS Analysis: Used for the accurate quantification of non-deuterated DBP in environmental, food, and biological samples.
• Method Development and Validation: Serves as a critical reference material for developing and validating analytical methods to detect phthalate esters.
• Metabolic and Pharmacokinetic Studies: Employed in tracer studies to investigate the absorption, distribution, metabolism, and excretion (ADME) of DBP.
• Quality Control in Polymer Analysis: Used to monitor and quantify the leaching of DBP from plastics and other polymer products.
• Environmental Monitoring: Applied in the analysis of water, soil, and air samples for phthalate contamination.
• Forensic and Clinical Toxicology: Aids in the precise measurement of DBP exposure biomarkers in human tissues and fluids.

Basic Information

Product Name	Di-n-Butyl Phthalate (Ring-D4)
CAS No.	93952-11-5
Molecular Formula	C₁₆H₁₄D₄O₄
Molecular Weight	282.35 g/mol
Synonyms	DBP-d4; Di-n-butyl phthalate-d4; Di-n-butyl benzene-1,2-dicarboxylate (Ring-D4); 1,2-Benzenedicarboxylic acid, 1,2-dibutyl ester (Ring-D4); Dibutyl phthalate (Ring-D4); Butyl phthalate-d4; Phthalic acid, dibutyl ester (Ring-D4); n-Butyl phthalate-d4
EINECS	Contact for details

Quality Control

Our Di-n-Butyl Phthalate (Ring-D4) is produced under strict quality management systems to ensure the highest isotopic and chemical purity for analytical applications. Each batch is characterized by advanced spectroscopic and chromatographic techniques, including NMR, GC-MS, and HPLC, to confirm deuteration level and chemical identity. Certificates of Analysis (COA) are provided, detailing batch-specific purity, isotopic enrichment, and analytical results. We support compliance with relevant guidelines for reference standards.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. Keep away from heat and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (NMR)	Conforms to structure
Purity (GC)	≥ 98.0%
Isotopic Purity (D-content)	≥ 98 atom % D
Water Content (KF)	≤ 0.5%

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