Description

1H-2-Benzopyran,3,4-Dihydro-1,1,4,4,7-Pentamethyl-(9Ci) is a specialized substituted chromane derivative, a high-purity organic intermediate of significant interest in advanced chemical synthesis. This compound matters for its role as a key building block in the development of complex molecules, offering a rigid, functionalized scaffold. It is primarily needed by research institutions and industrial R&D teams in the pharmaceutical, agrochemical, and material science sectors for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders.
• Agrochemical Research: Used as a building block for developing new active ingredients in crop protection and pest management formulations.
• Material Science: Acts as a monomer or additive in the research of advanced polymers, liquid crystals, and organic electronic materials.
• Flavor & Fragrance Chemistry: Employed in the synthesis of complex aroma chemicals and musk analogs due to its structural properties.
• Academic & Contract Research: A valuable reagent for methodological studies in organic chemistry, including catalysis and heterocyclic chemistry.
• Fine Chemical Synthesis: Utilized in custom and scale-up synthesis projects for producing high-value, specialty chemicals.

Basic Information

Item	Details
Product Name	1H-2-Benzopyran,3,4-Dihydro-1,1,4,4,7-Pentamethyl-(9Ci)
CAS No.	786690-10-6
Molecular Formula	C14H20O
Molecular Weight	204.31 g/mol
Synonyms	1,1,4,4,7-Pentamethyl-1,2,3,4-tetrahydrochromene; 1,1,4,4,7-Pentamethyl-3,4-dihydro-1H-2-benzopyran; 1,1,4,4,7-Pentamethyl-1,2,3,4-tetrahydro-2-benzopyran; Pentamethylchromane; 2H-1-Benzopyran, 3,4-dihydro-1,1,4,4,7-pentamethyl-; 1,1,4,4,7-Pentamethyl-3,4-dihydro-2H-chromene
EINECS	Contact for details

Quality Control

Our 1H-2-Benzopyran,3,4-Dihydro-1,1,4,4,7-Pentamethyl-(9Ci) is produced under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). For long-term storage, consider packaging under an inert gas such as nitrogen or argon.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 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.