Description

Calcium (4E)-3-Oxo-4-[(1-Sulfonatonaphthalen-2-Yl)Hydrazinylidene]Naphthalene-2-Carboxylate is a high-purity, organometallic complex salt valued for its unique chromophoric and chelating properties. This compound is essential for applications requiring precise color formation and metal ion interaction. It is primarily utilized by manufacturers in the dye and pigment, analytical chemistry, and specialty chemical synthesis industries.

Application

• Dye and Pigment Intermediate: Serves as a key precursor for the synthesis of high-performance azo dyes and complex pigments, particularly for textiles, inks, and coatings.
• Analytical Reagent: Used as a selective colorimetric indicator or chelating agent in analytical chemistry for the detection and quantification of specific metal ions.
• Complexometric Titration: Functions as a metallochromic indicator in EDTA titrations for determining water hardness or metal ion concentrations.
• Research & Development: Employed in academic and industrial R&D for studying coordination chemistry, developing new sensors, and creating novel functional materials.
• Specialty Chemical Synthesis: Acts as a building block for synthesizing more complex molecules in pharmaceutical and agrochemical research.

Basic Information

Product Name	Calcium (4E)-3-Oxo-4-[(1-Sulfonatonaphthalen-2-Yl)Hydrazinylidene]Naphthalene-2-Carboxylate
CAS No.	74336-37-1
Molecular Formula	C21H12CaN2O6S
Molecular Weight	460.46 g/mol
Synonyms	Calcium 3-oxo-4-[(1-sulfonatonaphthalen-2-yl)hydrazinylidene]naphthalene-2-carboxylate; Calcium 4-[(2-sulfonato-1-naphthyl)hydrazono]-3-oxo-3H-phenanthrene-2-carboxylate; C.I. Mordant Yellow 5, calcium salt; Acid Chrome Yellow GG; Chrome Fast Yellow GG; (4E)-3-Oxo-4-[(1-Sulfonatonaphthalen-2-Yl)Hydrazinylidene]Naphthalene-2-Carboxylic Acid Calcium Salt
EINECS	Contact for details

Quality Control

Our production of Calcium (4E)-3-Oxo-4-[(1-Sulfonatonaphthalen-2-Yl)Hydrazinylidene]Naphthalene-2-Carboxylate adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistent purity, identity, and performance. Certificates of Analysis (COA) detailing key specifications such as assay, heavy metal content, and loss on drying are available upon request to support your quality assurance processes.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which may affect product performance and stability.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Soluble

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