Description

(-)-cis-Heptachlorepoxide CAS NO 145213-11-2 is a specific stereoisomer of the heptachlor epoxide metabolite, a compound of significant interest in analytical and environmental chemistry. Its precise stereochemistry makes it a critical reference standard for the accurate identification, quantification, and toxicological study of heptachlor transformation products in various matrices. This high-purity material is essential for laboratories in regulatory, environmental monitoring, and agrochemical research sectors that require definitive analytical benchmarks.

Application

• Primary Use as an Analytical Reference Standard for calibrating equipment and validating methods in gas chromatography (GC) and liquid chromatography (LC) systems.
• Environmental Fate and Metabolism Studies to track the degradation pathways and persistence of the organochlorine pesticide heptachlor in soil and water systems.
• Toxicological Research to investigate the specific biological activity and health impacts of the cis-epoxide stereoisomer.
• Quality Control and Assurance in manufacturing settings to test for and quantify trace levels of this metabolite in related chemical products.
• Regulatory Compliance Testing for monitoring food, water, and environmental samples against maximum residue limits (MRLs) set by agencies like the EPA and EFSA.
• Method Development and Proficiency Testing in commercial and government testing laboratories to ensure analytical accuracy and reproducibility.

Basic Information

Product Name	(-)-cis-Heptachlorepoxide
CAS No.	145213-11-2
Molecular Formula	C10H5Cl7O
Molecular Weight	389.32 g/mol
Synonyms	1,4,5,6,7,8,8-Heptachloro-2,3-epoxy-2,3,3a,4,7,7a-hexahydro-4,7-methano-1H-indene; (-)-cis-1,2,3,4,5,6,7,8,8-Heptachloro-2,3-epoxy-3a,4,7,7a-tetrahydro-4,7-methanoindane; Heptachlor epoxide (cis-isomer); HCE; 4,5,6,7,8,8-Heptachloro-2,3-epoxy-2,3,3a,4,7,7a-hexahydro-4,7-methanoindene; (-)-cis-Heptachlor epoxide; Heptachlor exo-epoxide (cis-)
EINECS	Contact for details

Quality Control

Every batch of (-)-cis-Heptachlorepoxide is produced and verified under strict quality management protocols to ensure identity, purity, and stability. Our products undergo rigorous quality testing to ensure compliance with industry standards for analytical reference materials. Certificates of Analysis (COA) are available upon request, providing detailed chromatographic purity, assay results, and stereochemical confirmation data.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C under inert atmosphere. This material is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Specific Optical Rotation	Contact for details
Related Substances (HPLC)	Individual impurity ≤ 0.5%
Total Impurities	≤ 2.0%
Residual Solvents (GC)	Complies with ICH guidelines

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