Description

(5As,7S)-7-Isopropenyl-3-Methyl-6,7,8,9-Tetrahydro-5Ah-Pyrano[4,3-B]Chromen-1-One CAS NO 194937-75-2 is a high-purity, complex heterocyclic compound belonging to the chromenone class. This molecule serves as a critical advanced pharmaceutical intermediate and a versatile scaffold for medicinal chemistry research. It is primarily sought by R&D and production teams in the pharmaceutical, agrochemical, and fine chemical sectors for developing novel active ingredients. Our supply ensures consistent quality and reliable scalability to support your synthesis and process development needs.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates with potential biological activity.
• Medicinal Chemistry Research: Used as a core scaffold for structure-activity relationship (SAR) studies and library synthesis.
• Agrochemical Development: Intermediate in the research and production of new-generation pesticides and herbicides.
• Fine Chemical Synthesis: Precursor for creating complex, high-value specialty chemicals and flavors/fragrances.
• Academic & Institutional Research: Serves as a reference standard and starting material in organic chemistry and pharmacology studies.
• Biochemical Probe Development: Potential use in designing molecular probes for studying enzyme interactions and biological pathways.

Basic Information

Product Name	(5As,7S)-7-Isopropenyl-3-Methyl-6,7,8,9-Tetrahydro-5Ah-Pyrano[4,3-B]Chromen-1-One
CAS No.	194937-75-2
Molecular Formula	C₁₈H₂₀O₃
Molecular Weight	284.35 g/mol
Synonyms	7-Isopropenyl-3-methyl-6,7,8,9-tetrahydro-5aH-pyrano[4,3-b]chromen-1-one; (5aS,7S)-7-(1-Methylethenyl)-3-methyl-5a,6,7,8,9,9a-hexahydro-1H-pyrano[4,3-b]chromen-1-one; 194937-75-2; Pyranochromenone derivative; Chromen-1-one, 7-isopropenyl-3-methyl-6,7,8,9-tetrahydro-5aH-pyrano[4,3-b]-; (5aS,7S)-form
EINECS	Contact for details

Quality Control

Every batch of (5As,7S)-7-Isopropenyl-3-Methyl-6,7,8,9-Tetrahydro-5Ah-Pyrano[4,3-B]Chromen-1-One is manufactured under a strict quality management system. Our products undergo rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment. We support compliance with cGMP and ISO standards for pharmaceutical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents. For long-term storage, consider an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Specific Rotation	Contact for details

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