Description

Methylenetanshinquinone CAS NO 67656-29-5 is a specialized, high-purity chemical compound belonging to the class of tanshinone derivatives. This compound is valued for its role as a critical intermediate and reference standard in advanced pharmaceutical research and development. It is primarily sought by manufacturers and research institutions in the pharmaceutical, biotechnology, and fine chemical sectors for applications in drug discovery and synthesis.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for cardiovascular and anti-inflammatory drug candidates.
• Biochemical Research: Used as a reference standard and probe in pharmacological studies to investigate biological pathways and mechanisms of action.
• Natural Product Synthesis: Serves as a crucial intermediate in the semi-synthesis or total synthesis of complex natural products and their analogs.
• Analytical Standard: Employed in high-performance liquid chromatography (HPLC) and mass spectrometry (MS) for method development, validation, and quality control of related substances.
• Academic & Contract Research: Utilized in university laboratories and CROs (Contract Research Organizations) for exploratory chemistry and pre-clinical research projects.

Basic Information

Product Name	Methylenetanshinquinone
CAS No.	67656-29-5
Molecular Formula	C₁₈H₁₂O₃
Molecular Weight	276.29 g/mol
Synonyms	Methylene Tanshinquinone; 1,6-Dimethyl-6,7,8,9-tetrahydro-3H-phenanthro[1,2-b]furan-10,11-dione; Tanshinone VI; Cryptotanshinone quinone derivative; Methylenetanshiquinone; Danshen ketone derivative; (6R)-6,7,8,9-Tetrahydro-1,6-dimethyl-3H-phenanthro[1,2-b]furan-10,11-dione
EINECS	Contact for details

Quality Control

Our Methylenetanshinquinone is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and residual solvent analysis. A detailed Certificate of Analysis (COA) is provided with every shipment, ensuring traceability and compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) to prevent oxidation and degradation. Keep the container in a cool, dry, and well-ventilated place away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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