Description

3-Methyl-2-Butenoic Acid [9,10-Dihydro-8,8-Dimethyl-2-Oxo-2H,8H-Benzo[1,2-B:3,4-B']Dipyran-9-Yl] Ester is a specialized organic ester compound with a complex fused-ring structure. This chemical is valued for its role as a key synthetic intermediate and building block in advanced organic synthesis. It is primarily sought after by research and development laboratories and fine chemical manufacturers in the pharmaceutical and agrochemical sectors.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for compounds with complex polycyclic frameworks.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, where its unique structure can contribute to specific biological activity.
• Organic Synthesis Building Block: Acts as a versatile intermediate for constructing complex natural product analogs and other specialty organic molecules in academic and industrial R&D.
• Material Science Research: Investigated for potential use in the development of advanced organic materials, such as specialty polymers or liquid crystals, due to its rigid molecular architecture.
• Flavor & Fragrance Chemistry: May be utilized in the synthesis of high-value aroma chemicals and complex fragrance components.

Basic Information

Product Name	3-Methyl-2-Butenoic Acid [9,10-Dihydro-8,8-Dimethyl-2-Oxo-2H,8H-Benzo[1,2-B:3,4-B']Dipyran-9-Yl] Ester
CAS No.	22397-17-7
Molecular Formula	C19H22O4
Molecular Weight	314.38 g/mol
Synonyms	9,10-Dihydro-8,8-dimethyl-2-oxo-2H,8H-benzo[1,2-b:3,4-b']dipyran-9-yl 3-methylbut-2-enoate; 3,3-Dimethylallyl 9,10-dihydro-8,8-dimethyl-2-oxo-2H,8H-benzo[1,2-b:3,4-b']dipyran-9-carboxylate; Prenyl 9,10-dihydro-8,8-dimethyl-2-oxo-2H,8H-benzo[1,2-b:3,4-b']dipyran-9-carboxylate; 3-Methyl-2-butenoic acid, 9,10-dihydro-8,8-dimethyl-2-oxo-2H,8H-benzo[1,2-b:3,4-b']dipyran-9-yl ester; Karanjin 3-methylcrotonate (related derivative)
EINECS	Contact for details

Quality Control

Our 3-Methyl-2-Butenoic Acid [9,10-Dihydro-8,8-Dimethyl-2-Oxo-2H,8H-Benzo[1,2-B:3,4-B']Dipyran-9-Yl] Ester is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent identity. Certificates of Analysis (COA) detailing purity, impurities, and physical characteristics are provided with every shipment to support your quality assurance and regulatory needs.

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 away from heat, sparks, and open flame. For long-term storage, consider inert gas purging to maintain stability.

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)	≥ 97.0%
Related Substances (HPLC)	Total impurities ≤ 3.0% Any single impurity ≤ 1.0%
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.