Bis(±)-2-ethylhexyl Phthalate-3,4,5,6-d4 | CAS 93951-87-2

OVERVIEW  of  Bis(±)-2-ethylhexyl Phthalate-3,4,5,6-d4 | CAS 93951-87-2

Bis(±)-2-ethylhexyl phthalate-3,4,5,6-d₄ (CAS 93951-87-2) is a deuterium-labeled analogue of DEHP (Di-2-ethylhexyl phthalate) with four deuterium atoms incorporated into the aromatic ring. It is widely used as an internal standard in LC-MS/MS and GC-MS for quantifying DEHP and related phthalates in environmental, biological, and industrial samples.

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CHEMICAL INFORMATION

• Name : Bis(±)-2-ethylhexyl Phthalate-3,4,5,6-d4

• Molecular Formula: C₂₄H₃₈D₄O₄

• Molecular Weight: 394.6 g/mol

• CAS Number: 93951-87-2

• Isotopic Enrichment: Typically ≥ 98 atom % D

• Chemical Class: Deuterated phthalate ester

• Solubility: Soluble in organic solvents; insoluble in water

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APPLICATIONS  of  Bis(±)-2-ethylhexyl Phthalate-3,4,5,6-d4 | CAS 93951-87-2

• Mass Spectrometry Internal Standard:
  Extensively used for DEHP quantification in samples such as plastics, polymers, medical devices, water, food packaging, and biological matrices.

• Environmental Monitoring:
  Applied in trace-level determination of phthalates in soil, wastewater, indoor air particulates, and microplastics.

• Toxicology & Exposure Studies:
  Supports biomonitoring of DEHP metabolites in urine, serum, and tissues.

• Quality Control & Method Validation:
  Ideal for calibration curve generation, extraction efficiency checks, and method robustness evaluations.

• Plasticizer Analysis:
  Used in studies related to PVC materials, additive migration, and degradation pathways.

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ADVANTAGES  of  Bis(±)-2-ethylhexyl Phthalate-3,4,5,6-d4 | CAS 93951-87-2

• Clean mass shift from native DEHEP for accurate isotope-dilution quantification

• Chemically stable, non-volatile, and suitable for long-term routine analysis

• Co-elutes with the unlabeled compound ensuring reliable quantification

• Compatible across GC-MS, LC-MS/MS, SPE, and solvent extraction workflows

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HANDLING AND SAFETY

• Handling: Use standard PPE; avoid skin or eye contact.

• Hazards: Similar to DEHP; potential reproductive toxin; handle carefully.

• Storage: Keep in tightly closed amber vials, in cool, dry conditions.

• Disposal: Dispose of as organic hazardous waste according to regulations.

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SUMMARY
Bis(±)-2-ethylhexyl phthalate-3,4,5,6-d₄ (DEHP-d₄) is an essential isotope-labeled internal standard for precise quantification of DEHP in a wide range of analytical applications, offering excellent stability, high isotopic purity, and robust compatibility with modern mass spectrometric methods.

 

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