Description

2-Anilino-6-(Ethylpentylamino)-3-Methylspiro[9H-Xanthene-9,3'(1'H)-Isobenzofuran]-1'-One is a specialized spirocyclic organic compound belonging to the xanthene dye family, valued for its unique photophysical properties. This high-purity intermediate is critical for applications requiring precise color formation and light absorption characteristics. It is primarily sought after by manufacturers in the thermochromic and photochromic materials, specialty inks, and advanced dye synthesis sectors.

Application

• Thermochromic Pigments & Inks: A key leuco dye precursor for applications in temperature-sensitive packaging, security printing, and novelty products.
• Photochromic Materials: Used in the synthesis of compounds for lenses, optical switches, and smart windows that change color upon UV light exposure.
• Specialty Dye Manufacturing: Serves as a crucial building block for producing high-value, complex colorants with specific solubility and stability profiles.
• Research & Development: Employed in academic and industrial R&D for developing new functional materials, sensors, and imaging agents.
• Security Printing: Utilized in formulations for anti-counterfeiting features on banknotes, certificates, and high-value product labels.

Basic Information

Item	Details
Product Name	2-Anilino-6-(Ethylpentylamino)-3-Methylspiro[9H-Xanthene-9,3'(1'H)-Isobenzofuran]-1'-One
CAS No.	70516-37-9
Molecular Formula	C34H34N2O2
Molecular Weight	502.65 g/mol
Synonyms	2-Anilino-6-(N-ethyl-N-pentylamino)-3-methylfluoran; 3-Methyl-6-(N-ethyl-N-pentylamino)fluoran; Thermochromic Leuco Dye Intermediate; Spiro[9H-xanthene-9,3'(1'H)-isobenzofuran]-1'-one, 2-anilino-6-(ethylpentylamino)-3-methyl-; 6'-(Diethylamino)-3'-methyl-2'-(phenylamino)spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one (variation); Black 305 Leuco Dye Precursor; ODB-2 Related Intermediate
EINECS	Contact for details

Quality Control

Every batch of our 2-Anilino-6-(Ethylpentylamino)-3-Methylspiro[9H-Xanthene-9,3'(1'H)-Isobenzofuran]-1'-One is produced under strict quality management systems. We ensure high purity and batch-to-batch consistency through comprehensive analytical testing, including HPLC, NMR, and FT-IR. A detailed Certificate of Analysis (COA) confirming identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.