Description

2-(3-Chloropropylamino)-3-Chloro-6-Diethylaminospiro[9H-Xanthene-9,3'-Phthalide] is a specialized spiroxanthene derivative, a high-value chemical intermediate prized for its unique photochromic and chromogenic properties. This compound matters for its critical role in the synthesis of advanced functional materials, particularly those requiring precise colorimetric or optical switching behavior. Industrial and research chemists in the specialty dyes, photochromic materials, and sensor development sectors require this high-purity building block to develop next-generation products.

Application

• Key intermediate in the synthesis of photochromic dyes and pigments for smart windows and optical data storage.
• Precursor for developing colorimetric sensors and indicators used in analytical chemistry and medical diagnostics.
• Building block for functional polymers and coatings with light-responsive properties.
• Research chemical for studying spiro-compound reactivity and developing novel chromogenic systems.
• Used in the formulation of specialty inks with security or environmental-response features.
• Intermediate in organic synthesis for creating complex xanthene-based fluorescent probes.

Basic Information

Product Name	2-(3-Chloropropylamino)-3-Chloro-6-Diethylaminospiro[9H-Xanthene-9,3'-Phthalide]
CAS No.	76579-18-5
Molecular Formula	C29H28Cl2N2O2
Molecular Weight	507.45 g/mol
Synonyms	3-Chloro-6-(diethylamino)-2-(3-chloropropylamino)spiro[9H-xanthene-9,3'-phthalide]; 2-(3-Chloropropylamino)-3-chloro-6-diethylaminospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one; Spiro[9H-xanthene-9,3'-phthalide], 2-(3-chloropropylamino)-3-chloro-6-(diethylamino)-; Photochromic Spiroxanthene Intermediate; Chromogenic Spiro Compound; CAS 76579-18-5
EINECS	Contact for details

Quality Control

Our 2-(3-Chloropropylamino)-3-Chloro-6-Diethylaminospiro[9H-Xanthene-9,3'-Phthalide] is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and loss on drying. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and R&D documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is light-sensitive and should be handled under appropriate conditions to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Light yellow to yellow powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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