Description

4-Pentenoic Acid, 1',3'-Dihydro-3',3'-Dimethyl-6-Nitro-1'-[2-[(1-Oxo-4-Penten-1-Yl)Oxy]Ethyl]Spiro[2H-1-Benzopyran-2,2'-[2H]Indol]-8-Yl Ester is a sophisticated organic compound featuring a spiro[indoline-pyran] core, a photochromic structural motif, and a reactive pentenoate ester group. This complex molecular architecture makes it a high-value intermediate for advanced material science and specialty chemical synthesis. It is primarily sought by R&D and production teams in the photochromic materials, organic electronics, and high-performance polymer sectors.

Application

• Photochromic Material Synthesis: A key precursor for developing novel photochromic dyes and pigments used in lenses, smart windows, and optical data storage.
• Advanced Polymer Modification: The reactive ester group enables its incorporation into polymer backbones to create light-responsive or functionalized specialty polymers.
• Organic Electronics: Serves as a building block for synthesizing organic semiconductors or photoactive layers in devices like OLEDs and sensors.
• Chemical Research & Development: Used as a critical intermediate in academic and industrial research for exploring new photochromic and electrochromic systems.
• Specialty Coatings: Can be formulated into coatings that change properties (e.g., color, transparency) in response to light exposure.
• Molecular Switches: The spiro structure is fundamental for creating synthetic molecular switches and machines.

Basic Information

Product Name	4-Pentenoic Acid, 1',3'-Dihydro-3',3'-Dimethyl-6-Nitro-1'-[2-[(1-Oxo-4-Penten-1-Yl)Oxy]Ethyl]Spiro[2H-1-Benzopyran-2,2'-[2H]Indol]-8-Yl Ester
CAS No.	1554286-40-6
Molecular Formula	C30H30N2O6
Molecular Weight	514.57 g/mol
Synonyms	6-Nitro-1',3'-dihydro-3',3'-dimethyl-1'-[2-[(1-oxo-4-penten-1-yl)oxy]ethyl]spiro[2H-1-benzopyran-2,2'-[2H]indol]-8-yl 4-pentenoate; Spiro[indoline-pyran] pentenoate ester; Photochromic spiro compound ester; 6-Nitro BIPS derivative ester; 1',3'-Dihydro-3',3'-dimethyl-6-nitrospiro[2H-1-benzopyran-2,2'-indol]-1'-ethanol, 8-(4-pentenoate) ester; Light-responsive indolinospiropyran ester
EINECS	Contact for details

Quality Control

Every batch of this high-purity intermediate is produced and tested under strict quality management protocols. Our products undergo rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and lot-to-lot consistency critical for advanced R&D and scale-up. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is light-sensitive (store away from light) and should be handled under an inert atmosphere when appropriate to prevent degradation. Keep away from strong acids/bases and oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 97.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
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.