Description

(-)-Heptachlor CAS NO 74867-73-5 is the specific enantiomer of the organochlorine compound heptachlor, known for its distinct biological activity and stereochemical purity. This high-purity chiral standard is critical for analytical and research applications where stereospecific interactions are studied. It is primarily utilized by analytical laboratories, environmental testing facilities, and research institutions engaged in pesticide residue analysis, metabolic studies, and the development of enantioselective detection methods.

Application

• Analytical Reference Standard: Serves as a certified standard for the calibration of instruments and the quantification of heptachlor residues in environmental and food safety testing (e.g., GC-MS, LC-MS).
• Environmental Fate Studies: Used in research to investigate the degradation, metabolism, and enantioselective behavior of heptachlor in soil and water systems.
• Toxicological Research: Employed in studies to understand the specific toxicological profile and metabolic pathways of the (-)-enantiomer compared to its racemic mixture or the (+)-form.
• Method Development: Essential for developing and validating chiral separation methods in chromatography to distinguish between heptachlor enantiomers.
• Quality Control: Acts as a purity benchmark for manufacturers and laboratories to verify the composition of heptachlor-related products or samples.

Basic Information

Product Name	(-)-Heptachlor
CAS No.	74867-73-5
Molecular Formula	C10H5Cl7
Molecular Weight	373.32 g/mol
Synonyms	(-)-1,4,5,6,7,8,8-Heptachloro-3a,4,7,7a-tetrahydro-4,7-methanoindene; (1R,4S,5R,8R)-1,4,5,6,7,8,8-Heptachloro-3a,4,7,7a-tetrahydro-4,7-methano-1H-indene; Heptachlor (-)-enantiomer; (1α,4β,5α,8β)-Heptachlor; (-)-1-exo,4,5,6,7,8,8-Heptachloro-2,3-exo-epoxy-2,3,3a,4,7,7a-hexahydro-4,7-methanoindene (related epoxide); ENT 15152 (stereospecific form).
EINECS	Contact for details

Quality Control

Our (-)-Heptachlor is produced and handled under strict quality protocols to ensure high enantiomeric purity and chemical integrity, suitable for demanding analytical applications. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing parameters such as enantiomeric excess, chemical purity, and identity confirmation. We adhere to relevant industry standards for reference materials to ensure reliability and traceability in your analytical workflows.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). This material is light-sensitive (store away from light) and should be handled in a manner that minimizes prolonged exposure to air and moisture to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Heptachlor Epoxide	≤ 0.5%
Loss on Drying	≤ 0.5%

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