Description

Resorcin Blue, Pure is a high-purity, light-sensitive organic dye compound, identified by CAS number 71939-12-3. This specialized chemical is valued for its distinct colorimetric properties and serves as a critical reagent in analytical and research chemistry. It is primarily required by manufacturers and R&D laboratories in the chemical synthesis, diagnostic, and life science sectors for precise color indication and staining applications.

Application

• Analytical Chemistry Reagent: Used as a pH indicator or colorimetric agent in titration and spectrophotometric analysis.
• Biological Staining: Employed in histological and cytological preparations for microscopic examination in life science research.
• Chemical Synthesis Intermediate: Serves as a precursor or intermediate in the synthesis of more complex dyes and specialty organic compounds.
• Laboratory Reference Standard: Utilized as a pure standard for calibration, method development, and quality control in analytical laboratories.
• Educational Demonstrations: Applied in academic settings for teaching chemical principles related to dyes and indicators.

Basic Information

Product Name	Resorcin Blue, Pure
CAS No.	71939-12-3
Molecular Formula	C12H9NO3
Molecular Weight	215.20 g/mol
Synonyms	Resorcinol Blue; Lacmoid; Azolitmin; Resazurin derivative; 7-Hydroxy-3H-phenoxazin-3-one 10-oxide; C.I. 51400; Orcinol Blue
EINECS	Contact for details

Quality Control

Our Resorcin Blue, Pure is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and related substance profiles is provided and available upon request 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 a controlled room temperature (typically 15-25°C). Keep away from incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	Dark blue to black powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
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.