Description

Aurantine CAS NO 522-16-7 is a synthetic organic dye belonging to the acridine class, valued for its distinct yellow-orange color and strong tinctorial strength. This compound is a critical intermediate and colorant in various industrial and research applications where consistent quality and reliable supply are paramount. It is primarily utilized by manufacturers in the dyeing, biological staining, and analytical chemistry sectors.

Application

• Biological Staining Agent: Used as a fluorescent stain in microscopy for visualizing cellular structures, particularly in histology and cytology.
• Textile Dyeing Intermediate: Serves as a key precursor or colorant for dyeing wool, silk, and other natural fibers.
• Indicator and Reagent: Employed in analytical chemistry as a pH indicator or a reagent in specific colorimetric assays.
• Research & Development: Utilized in chemical synthesis and material science research as a model compound or functional dye.
• Ink and Pigment Manufacturing: Acts as a color component in the formulation of specialized inks and pigments.

Basic Information

Product Name	Aurantine CAS NO 522-16-7
CAS No.	522-16-7
Molecular Formula	C17H22N3Cl
Molecular Weight	303.83 g/mol
Synonyms	Acridine Orange Base; 3,6-Bis(dimethylamino)acridine; Basic Orange 14; C.I. 46005; Euchrysine 3R; Euchrysine; 3,6-Bis(dimethylamino)acridine hydrochloride (base form); Acridine Orange free base
EINECS	208-330-6

Quality Control

Our Aurantine is produced and tested under a stringent quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as identity, assay, and impurity profiles. The product meets specifications suitable for industrial and research use, with compliance traceable to relevant global chemical inventories.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Orange to brown powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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