Description

(+)-O,P'-Ddd CAS NO 164203-73-0 is a specific stereoisomer of the organochlorine compound O,P'-DDD, distinguished by its chiral purity and defined spatial configuration. This high-purity standard is critical for analytical and research applications where precise molecular identity and enantiomeric consistency are paramount. It serves as an essential reference material for environmental testing laboratories, agrochemical research and development, and pharmaceutical impurity profiling, enabling accurate quantification and method validation.

Application

• Analytical Reference Standard: Primary use as a certified standard for the calibration of GC-MS, LC-MS, and HPLC systems in environmental and food safety testing.
• Environmental Monitoring: Used in the analysis of soil, water, and biota samples to detect and quantify persistent organochlorine pesticide residues and their metabolites.
• Metabolite Studies: Critical for researching the metabolic pathways and environmental degradation products of related DDT-group pesticides.
• Pharmaceutical Impurity Profiling: Employed in the identification and quantification of potential genotoxic impurities (PGIs) in active pharmaceutical ingredients (APIs).
• Toxicological Research: Serves as a precise reagent in studies investigating the endocrine-disrupting effects and toxicokinetics of chlorinated hydrocarbons.
• Quality Control (QC) Laboratories: Provides a benchmark for in-house method development and verification within agrochemical and environmental service companies.
• Regulatory Compliance Testing: Supports testing protocols to ensure compliance with global regulations (e.g., EPA, EU directives) on banned or restricted persistent organic pollutants (POPs).
• Academic and Institutional Research: A key material for universities and research institutes studying environmental chemistry, ecotoxicology, and analytical method development.

Basic Information

Item	Details
Product Name	(+)-O,P'-Ddd
CAS No.	164203-73-0
Molecular Formula	C14H10Cl4
Molecular Weight	320.04 g/mol
Synonyms	(+)-o,p'-DDD; (+)-1-(2-Chlorophenyl)-1-(4-chlorophenyl)-2,2-dichloroethane; (R)-o,p'-DDD; Dextro-o,p'-DDD; (+)-2,4'-DDD; o,p'-DDD enantiomer; Mitotane impurity standard; 1,1-Dichloro-2-(2-chlorophenyl)-2-(4-chlorophenyl)ethane (+)-enantiomer
EINECS	Contact for details

Quality Control

Every batch of (+)-O,P'-Ddd is manufactured and analyzed under strict quality management systems. We provide comprehensive analytical data to ensure the product meets the high-purity requirements for use as a reference material. A detailed Certificate of Analysis (COA) is supplied with each shipment, reporting key parameters such as enantiomeric excess (ee), chemical purity (by HPLC), and identity confirmation (by NMR/IR). Our quality commitment aligns with the standards expected for analytical and research-grade chemicals.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The compound is light-sensitive; prolonged exposure to light should be avoided to maintain stability and purity. Keep the container sealed in a dry environment to prevent any potential moisture uptake.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%

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