Description

2H-Naphtho[1,2-B]Pyran-5-Carboxylic Acid,6-(Acetyloxy)-2,2-Bis(4-Methoxyphenyl)-,Methyl Ester is a high-purity, complex organic intermediate of significant interest in advanced chemical synthesis. This compound matters for its role as a sophisticated building block in the development of novel photochromic materials and active pharmaceutical ingredients (APIs). It is primarily needed by research institutions and industrial manufacturers in the fine chemicals, specialty materials, and pharmaceutical sectors for process development and high-value product manufacturing.

Application

• Key intermediate in the synthesis of advanced photochromic compounds for lenses and smart materials.
• Building block for research and development of novel pharmaceutical candidates and active ingredients.
• Precursor in the manufacture of specialized dyes and pigments with unique optical properties.
• Used in organic synthesis for creating complex heterocyclic frameworks in academic and industrial R&D.
• Intermediate for performance chemicals in the electronics and imaging industries.

Basic Information

Product Name	2H-Naphtho[1,2-B]Pyran-5-Carboxylic Acid,6-(Acetyloxy)-2,2-Bis(4-Methoxyphenyl)-,Methyl Ester
CAS No.	194416-54-1
Molecular Formula	C31H26O7
Molecular Weight	510.54 g/mol
Synonyms	Methyl 6-acetoxy-2,2-bis(4-methoxyphenyl)-2H-naphtho[1,2-b]pyran-5-carboxylate; 6-Acetoxy-2,2-bis(4-methoxyphenyl)-2H-naphtho[1,2-b]pyran-5-carboxylic Acid Methyl Ester; 2H-Naphtho[1,2-b]pyran-5-carboxylic acid, 6-(acetyloxy)-2,2-bis(4-methoxyphenyl)-, methyl ester; Photochromic Naphthopyran Intermediate; Bis(4-methoxyphenyl)naphthopyran Ester
EINECS	Contact for details

Quality Control

Our 2H-Naphtho[1,2-B]Pyran-5-Carboxylic Acid,6-(Acetyloxy)-2,2-Bis(4-Methoxyphenyl)-,Methyl Ester is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC and NMR, to ensure high purity and consistent chemical identity. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, handling should be conducted under appropriate conditions to prevent degradation.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 97.0%
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.