Description

Heptachlor- Endo- Epoxide (trans-, Isomer A) is a specific stereoisomer of the organochlorine compound heptachlor epoxide, known for its persistence and role as a key environmental metabolite. This high-purity reference material is essential for analytical and research applications where precise chemical identity and isomer specificity are critical. It is primarily utilized by environmental testing laboratories, regulatory agencies, and chemical research institutions for calibration, method development, and toxicological studies.

Application

• Analytical Reference Standard: Primary use as a certified standard for the quantification of heptachlor epoxide residues in environmental samples via GC-MS or HPLC.
• Environmental Monitoring: Calibration and quality control in the analysis of soil, water, and air for persistent organic pollutant (POP) compliance and remediation studies.
• Food Safety Testing: Used in laboratories to detect and measure pesticide residues in agricultural products and food commodities to ensure regulatory compliance.
• Toxicological Research: Serves as a precise chemical entity in studies investigating the metabolism, environmental fate, and health effects of organochlorine pesticides.
• Method Development & Validation: Critical for developing, optimizing, and validating analytical methods in accredited testing laboratories.
• Regulatory Compliance & Forensics: Supports enforcement activities by providing a definitive standard for identifying isomer-specific contamination in legal and forensic analyses.

Basic Information

Product Name	Heptachlor- Endo- Epoxide (trans-, Isomer A)
CAS No.	28044-83-9
Molecular Formula	C10H5Cl7O
Molecular Weight	389.32 g/mol
Synonyms	trans-Heptachlor epoxide; 1,4,5,6,7,8,8-Heptachloro-2,3-epoxy-2,3,3a,4,7,7a-hexahydro-4,7-methano-1H-indene; Heptachlor epoxide isomer A; HCE; 2,3,4,5,6,7,7-Heptachloro-1a,1b,5,5a,6,6a-hexahydro-2,5-methano-2H-oxireno[a]indene; ENT 25584; RCRA waste number P059; Velsicol 53-CS-17
EINECS	248-834-9

Quality Control

Every batch of our Heptachlor- Endo- Epoxide (trans-, Isomer A) is produced and verified under strict quality protocols to ensure high chemical purity and isomer specificity, suitable for demanding analytical applications. We provide comprehensive Certificates of Analysis (COA) that detail purity, identity confirmation via spectroscopic methods, and levels of key impurities. Our quality system supports compliance with standards relevant to analytical reference materials and environmental testing.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep the container tightly sealed to prevent moisture absorption and potential contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0% (Isomer A)
Related Substances (HPLC)	Total impurities ≤ 2.0%
Heptachlor	≤ 0.1%
Loss on Drying	≤ 0.5%

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