Description

Mono-(7-Carboxyoctyl) Phthalate (Ring-1,2-13C2, Dicarboxyl-13C2,99%) 100Ug/Ml Mtbe is a high-purity, isotopically labeled internal standard critical for advanced analytical chemistry. This compound provides the definitive reference point for the accurate quantification of phthalate metabolites and related compounds in complex matrices. It is essential for researchers and quality control laboratories in the environmental monitoring, clinical toxicology, and industrial hygiene sectors who require uncompromising data integrity and traceability.

Application

• Internal Standard for LC-MS/MS: Primary use as a stable isotope-labeled internal standard for the precise quantification of phthalate monoesters (like MEHP) in biological and environmental samples via mass spectrometry.
• Biomonitoring & Clinical Research: Enables accurate measurement of human exposure to di(2-ethylhexyl) phthalate (DEHP) and other plasticizers in urine, serum, and other bodily fluids.
• Environmental Analysis: Used in the trace analysis of phthalate degradation products in water, soil, and air samples to assess environmental contamination.
• Method Development & Validation: Serves as a key reagent for developing, calibrating, and validating highly sensitive analytical methods in accredited laboratories.
• Pharmaceutical Impurity Profiling: Aids in the detection and quantification of potential phthalate-related impurities in drug substances and products.
• Food Safety Testing: Supports assays designed to monitor phthalate migration from packaging materials into foodstuffs.

Basic Information

Product Name	Mono-(7-Carboxyoctyl) Phthalate (Ring-1,2-13C2, Dicarboxyl-13C2,99%) 100Ug/Ml Mtbe
CAS No.	2687960-23-0
Molecular Formula	C17H22O6 (with 13C labeling as specified)
Molecular Weight	~322.36 g/mol (unlabeled)
Synonyms	MEHP-d4 (13C2); Mono(2-ethyl-5-carboxypentyl) phthalate-13C2; 1,2-Benzenedicarboxylic acid, mono(7-carboxyoctyl) ester-13C2; Carboxyoctyl phthalate-13C2; Phthalic acid mono(7-carboxyoctyl) ester-13C2; DEHP Metabolite Standard-13C2; Isotopically Labeled MEHP; [13C2]-MEHP
EINECS	Contact for details

Quality Control

Every batch of this isotopically labeled standard is manufactured and analyzed under strict quality protocols to ensure identity, purity, and isotopic enrichment meet the exacting requirements of quantitative mass spectrometry. A comprehensive Certificate of Analysis (COA) is provided with each unit, detailing results from NMR, HPLC, and MS confirmation. Our quality system supports compliance with ISO 17034 (Reference Material Producer) and GMP guidelines for critical reagents.

Storage

Preserve in the original tightly closed container, protected from light. Store at -20°C or below for long-term stability. Due to its high volatility and preparation in MTBE, ensure containers are securely sealed and stored in a well-ventilated area away from ignition sources. Allow the solution to reach room temperature before opening to prevent condensation.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow solution
Concentration	100 µg/mL ± 5%
Solvent	Methyl tert-butyl ether (MTBE)
Isotopic Purity (13C)	≥ 99% (on specified labeled positions)
Chemical Purity (HPLC)	≥ 98%
Identification (NMR/MS)	Conforms to structure

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