Description

Calcium (4Z)-4-[(4-Methyl-2-Sulfonato-Phenyl)Hydrazinylidene]-3-Oxo-Naphthalene-2-Carboxylate is a high-purity, organometallic colorant intermediate valued for its precise chemical structure and consistent performance. This compound is essential for manufacturers requiring a reliable and specific chromophore for advanced dye and pigment synthesis. It is primarily utilized by the specialty chemical, textile dye, and advanced materials industries for creating vivid and stable colorants.

Application

• Primary intermediate in the synthesis of high-performance azo dyes and pigments for textiles and plastics.
• Key precursor for manufacturing specialty colorants used in inks, coatings, and paints.
• Research and development of novel functional dyes for optical and electronic applications.
• Production of colorants for industrial markers and security inks.
• Used in the development of sensitizers and photoactive materials.
• Potential use as a chemical reagent in analytical chemistry and diagnostics.

Basic Information

Product Name	Calcium (4Z)-4-[(4-Methyl-2-Sulfonato-Phenyl)Hydrazinylidene]-3-Oxo-Naphthalene-2-Carboxylate
CAS No.	60748-28-9
Molecular Formula	C19H12CaN2O7S
Molecular Weight	452.45 g/mol
Synonyms	Calcium 4-[(4-Methyl-2-sulfophenyl)hydrazono]-3-oxo-2-naphthalenecarboxylate; Calcium 4-[(4-Methyl-2-sulfonatophenyl)hydrazinylidene]-3-oxo-1,4-dihydronaphthalene-2-carboxylate; C.I. Pigment Yellow 191:1; PY 191:1; Azo Calcium Salt; 2-Naphthalenecarboxylic acid, 4-[(2-sulfo-4-methylphenyl)hydrazono]-3-oxo-, calcium salt (1:1); 60748-28-9; Light Yellow Calcium Salt
EINECS	Contact for details

Quality Control

Our production of Calcium (4Z)-4-[(4-Methyl-2-Sulfonato-Phenyl)Hydrazinylidene]-3-Oxo-Naphthalene-2-Carboxylate adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. The material is manufactured and tested in facilities that comply with ISO 9001 standards. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request for every lot shipped.

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 nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	Contact for details
Solubility	Slightly soluble in water

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