Description

Mordant Yellow 1 is a synthetic organic dye belonging to the azo dye class, widely recognized for its chelating properties with metal ions. This compound is valued for its role as a versatile colorant and a crucial analytical reagent in metallurgical and histochemical processes. It is primarily sought by manufacturers and laboratories in the textile, leather, and analytical chemistry sectors for dyeing, staining, and complexometric applications.

Application

• Textile and Leather Dyeing: Used as a mordant dye for wool, silk, and leather, producing yellow shades with good fastness properties when complexed with metal salts like chromium or aluminum.
• Biological Staining: Employed in histology and microscopy as a stain for tissues, often in combination with other dyes to highlight specific cellular structures.
• Analytical Chemistry: Serves as a metallochromic indicator in complexometric titrations for the determination of metal ions such as aluminum, iron, and zirconium.
• Ink and Pigment Manufacturing: Acts as a colorant component in the formulation of specialized inks, pigments, and artist's colors.
• Research & Development: Utilized in chemical research as a model compound for studying azo dye chemistry, photodegradation, and metal-chelate interactions.

Basic Information

Product Name	Mordant Yellow 1
CAS No.	584-42-9
Molecular Formula	C13H9N3O5
Molecular Weight	287.23 g/mol
Synonyms	Alizarin Yellow GG; Alizarin Yellow R; Alizarin Yellow 2G; Mordant Orange 1; C.I. 14025; 5-(4-Nitrophenylazo)salicylic acid; 2-Hydroxy-5-[(4-nitrophenyl)azo]benzoic acid
EINECS	209-525-8

Quality Control

Our Mordant Yellow 1 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot is tested against comprehensive specifications, including identity confirmation, assay, and impurity profile analysis. A detailed Certificate of Analysis (COA) documenting purity, heavy metal content, and other critical parameters is provided with every 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 strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 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.