Description

Microcystin Rr is a potent cyclic heptapeptide hepatotoxin produced by certain species of freshwater cyanobacteria. This compound is of critical importance for environmental monitoring, toxicological research, and the development of detection methods for cyanobacterial blooms. It serves as an essential analytical reference standard for laboratories in the water treatment, public health, and ecological research sectors, enabling accurate risk assessment and regulatory compliance.

Application

• Analytical Reference Standard: Primary use as a certified standard for the quantitative analysis of microcystin contamination in water samples via HPLC, LC-MS, or ELISA.
• Toxicological Research: Used in studies to investigate the mechanisms of hepatotoxicity, including protein phosphatase inhibition and oxidative stress pathways.
• Method Development & Validation: Critical for developing, calibrating, and validating new analytical methods for cyanotoxin detection in environmental and drinking water.
• Quality Control & Assurance: Employed in QC laboratories for testing and certifying commercial test kits and immunoassays designed for microcystin detection.
• Environmental Monitoring: Supports programs monitoring cyanobacterial harmful algal blooms (cyanoHABs) in lakes, reservoirs, and recreational waters.
• Regulatory Compliance Testing: Essential for laboratories conducting testing to meet guidelines set by organizations like the WHO, EPA, and other global water safety authorities.

Basic Information

Item	Detail
Product Name	Microcystin Rr
CAS No.	111755-37-4
Molecular Formula	C₄₉H₇₅N₁₀O₁₂
Molecular Weight	1024.2 g/mol
Synonyms	Microcystin-RR; [D-Asp³,(E)-Dhb⁷]Microcystin-RR; Cyanoginosin RR; Toxin T 23; MC-RR; [D-Asp³,Dha⁷]MC-RR; (3S,4S,8S,9S,10E,13S,14S,16S,19S,21S,23S,25S,28S,31S)-13-[(2S)-2-Methyl-1-oxobutyl]-21-(2-methylpropyl)-23,31-dimethyl-3,6,9,14,19,22,27,30-octaazapentacyclo[26.2.2.1⁵,⁸.1¹¹,¹⁴.1¹⁷,²⁰]tetratriacontane-4,8,16,25,28-pentone
EINECS	Contact for details

Quality Control

Our Microcystin Rr is produced and handled under strict quality protocols to ensure the highest purity and stability for critical analytical applications. Each batch is characterized using advanced techniques including High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS) to confirm identity and potency. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and chromatographic data is provided with every shipment to support your research and compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below. This product is hygroscopic (moisture-sensitive). Allow the vial to equilibrate to room temperature in a desiccator before opening to prevent condensation and moisture uptake. For long-term storage, keep desiccated under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (HPLC)	Retention time corresponds to reference standard
Identification (MS)	Mass spectrum conforms to structure
Purity (HPLC)	≥ 95% (Area Percent)
Assay (HPLC)	≥ 90% (by weight)
Water Content (KF)	≤ 5.0 %
Solubility	Soluble in methanol, dimethyl sulfoxide; slightly soluble in water

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