Description

Di-n-Octyl Phthalate (Ring-D4) is a deuterated internal standard specifically designed for analytical quantification. This high-purity compound is essential for ensuring accuracy and reliability in mass spectrometry and other advanced analytical techniques. It is a critical tool for researchers and quality control laboratories in the pharmaceutical, environmental testing, and polymer industries who require precise measurement of phthalate compounds.

Application

• Primary use as a deuterated internal standard (d4-DNOP) for the accurate quantification of Di-n-Octyl Phthalate (DNOP) via Gas Chromatography-Mass Spectrometry (GC-MS) and Liquid Chromatography-Mass Spectrometry (LC-MS).
• Critical component in analytical method development and validation for phthalate detection in complex matrices.
• Essential for trace-level analysis in environmental monitoring of water, soil, and air samples for plasticizer contamination.
• Used in food safety and packaging migration studies to quantify potential phthalate leaching.
• Supports biomedical and toxicological research investigating the metabolism and bioaccumulation of phthalates.
• Quality control applications in the polymer and plastics industry for verifying raw material purity and final product composition.
• Reference material for forensic analysis and regulatory compliance testing (e.g., REACH, EPA, FDA protocols).

Basic Information

Item	Detail
Product Name	Di-n-Octyl Phthalate (Ring-D4)
CAS No.	93952-13-7
Molecular Formula	C24D4H34O4
Molecular Weight	~394.57 g/mol
Synonyms	DNOP-d4; Di-n-octyl phthalate-d4; Bis(2-ethylhexyl) phthalate-d4 (structural isomer reference); Dioctyl phthalate (Ring-D4); 1,2-Benzenedicarboxylic acid, 1,2-dioctyl ester (Ring-D4); DEHP-d4 (common misnomer, correct for di-2-ethylhexyl phthalate); Phthalic acid, dioctyl ester-d4; Internal Standard for DNOP
EINECS	Contact for details

Quality Control

Every batch of Di-n-Octyl Phthalate (Ring-D4) is produced and analyzed under strict quality management systems. We guarantee high chemical and isotopic purity to meet the exacting demands of analytical science. Comprehensive Certificates of Analysis (COA) are provided, detailing parameters such as isotopic enrichment (Atom % D), chemical purity by GC/HPLC, and absence of interfering non-deuterated species. Our quality commitment ensures reliability for your most sensitive GC-MS and LC-MS applications.

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 strong acids and oxidizing agents. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR / NMR)	Conforms to structure
Isotopic Purity (Atom % D)	≥ 98% (on the aromatic ring)
Chemical Purity (GC-FID / HPLC)	≥ 99.0%
Non-deuterated DNOP (by GC-MS)	≤ 0.5%
Water Content (KF)	≤ 0.1%

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