Description

Di-n-Heptyl Phthalate-3,4,5,6-D4 is a deuterated isotopologue of di-n-heptyl phthalate, a high-molecular-weight phthalate ester. This compound is specifically valuable as a stable isotope-labeled internal standard for precise quantitative analysis in advanced analytical chemistry. It is essential for researchers and quality control laboratories in industries requiring high-accuracy mass spectrometry, such as environmental monitoring, polymer additive analysis, and regulatory toxicology studies.

Application

• Internal Standard for GC-MS and LC-MS analysis of phthalate esters and plasticizers.
• Quantitative reference material in environmental testing for phthalate contamination in water, soil, and air samples.
• Tracer compound in metabolic and pharmacokinetic studies within pharmaceutical and toxicological research.
• Calibration standard for instrument validation and method development in analytical laboratories.
• Critical component in the analysis of polymer formulations and additive migration studies.
• Use in regulatory compliance testing to meet standards such as REACH, RoHS, and consumer product safety regulations.

Basic Information

Item	Detail
Product Name	Di-n-Heptyl Phthalate-3,4,5,6-D4
CAS No.	358731-41-6
Molecular Formula	C22H30D4O4
Molecular Weight	~366.52 g/mol
Synonyms	Diheptyl Phthalate-d4; 1,2-Benzenedicarboxylic Acid, 3,4,5,6-tetradeuterio-, Diheptyl Ester; Bis(heptyl) Phthalate-3,4,5,6-d4; DnHP-d4; DHP-d4; Phthalic Acid, Di-n-heptyl Ester-3,4,5,6-D4; Deuterated Di-n-heptyl Phthalate; Isotopically Labeled Diheptyl Phthalate
EINECS	Contact for details

Quality Control

Our Di-n-Heptyl Phthalate-3,4,5,6-D4 is produced and handled 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 and GC-MS, to confirm deuterium incorporation and chemical identity. Certificates of Analysis (COA) detailing isotopic purity, chemical purity, and analytical data are provided with every shipment.

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 oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR / NMR)	Conforms to structure
Chemical Purity (GC)	≥ 98.0%
Isotopic Purity (D-content)	≥ 98 atom % D
Isotopic Enrichment (Position 3,4,5,6)	≥ 99%

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