Description

3,7-Didesmethylmicrocystin Lr is a key structural analog and metabolite of the potent cyanobacterial hepatotoxin, microcystin-LR. This compound is of significant value for research and analytical applications, serving as a critical reference standard and tool for understanding toxin metabolism and environmental fate. It is primarily utilized by analytical laboratories, environmental research institutions, and toxicology departments within the pharmaceutical and water safety industries.

Application

• Analytical Reference Standard: Primary use for the calibration and validation of analytical methods (e.g., LC-MS/MS, HPLC) for detecting and quantifying microcystin variants in environmental and biological samples.
• Metabolism and Toxicology Studies: Essential for investigating the metabolic pathways, detoxification mechanisms, and toxicokinetics of microcystins in research models.
• Environmental Monitoring and Forensics: Used as a marker to study the degradation and transformation products of microcystins in water bodies, supporting source tracking and ecological risk assessment.
• Antibody and Assay Development: Serves as a hapten or critical component in the development and cross-reactivity testing of immunoassays (ELISAs) and biosensors for toxin detection.
• Quality Control and Proficiency Testing: Employed in internal quality control programs and by providers of certified reference materials (CRMs) and proficiency testing schemes for laboratories.
• Academic and Regulatory Research: Supports fundamental research into cyanotoxin chemistry and informs the development of safety guidelines and regulations for drinking and recreational water.

Basic Information

Product Name	3,7-Didesmethylmicrocystin Lr
CAS No.	126268-88-0
Molecular Formula	C47H70N10O12
Molecular Weight	967.1 g/mol
Synonyms	3,7-Didesmethylmicrocystin-LR; 3,7-DM MC-LR; Microcystin-LR 3,7-didesmethyl; 7-Desmethylmicrocystin-LR; [D-Asp3,(E)-Dhb7]microcystin-LR; 3,7-Didesmethyl-microcystin LR; MC-LR (3,7-didesmethyl)
EINECS	Contact for details

Quality Control

Our 3,7-Didesmethylmicrocystin Lr is produced and handled under strict quality management protocols. Each batch undergoes comprehensive analytical characterization to ensure identity, purity, and stability. Certificates of Analysis (COA) detailing lot-specific results from techniques such as NMR, HRMS, and HPLC are provided. We support research and compliance needs with reliable, well-documented materials.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below. This compound is hygroscopic (moisture-sensitive); allow the sealed vial to equilibrate to room temperature before opening to minimize moisture uptake. For long-term storage, consider under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (NMR)	Conforms to structure
Identification (HRMS)	Conforms to structure
Purity (HPLC)	≥95% (Area % at 238 nm)
Water Content (KF)	≤5.0%
Specific Optical Rotation	Contact for details

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