Description

Cumambrin B CAS NO 21982-83-2 is a high-purity sesquiterpene lactone compound valued for its specific biological and chemical properties. This compound is essential for research and development in advanced organic synthesis and pharmaceutical discovery. It is primarily sought by professionals in the pharmaceutical, agrochemical, and fine chemical industries for use as a key intermediate or reference standard.

Application

• Pharmaceutical research as a potential bioactive intermediate or lead compound.
• Organic synthesis for the construction of complex natural product analogs.
• Biochemical research to study structure-activity relationships (SAR).
• Reference standard for analytical method development and quality control in laboratories.
• Agrochemical research for the development of novel active ingredients.
• Academic research in medicinal chemistry and phytochemistry.

Basic Information

Product Name	Cumambrin B
CAS No.	21982-83-2
Molecular Formula	C15H20O3
Molecular Weight	248.32 g/mol
Synonyms	Cumambrin B; 8α-Angeloyloxy-9α-hydroxy-14-oxo-acanthospermolide; 21982-83-2; Acanthospermolide, 8α-(angeloyloxy)-9α-hydroxy-14-oxo-; (3aR,4S,6aR,7S,9aS,9bR)-7-(2-Methylbut-2-enoyloxy)-4,9a,9b-trimethyl-2,5-dioxo-3a,4,5,6a,7,8,9,9a-octahydro-3H-cyclopenta[8]annulen-6-yl acetate
EINECS	Contact for details

Quality Control

Our Cumambrin B is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and purity determination. Certificates of Analysis (COA) detailing all test results are provided to ensure full traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep the container tightly sealed when not in use to protect from moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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