Description

2,4-Dihydro-4-[(6-Methoxybenzothiazol-2-Yl)Azo]-5-Methyl-2-Phenyl-3H-Pyrazol-3-One is a specialized azo pyrazolone derivative, a chemical class known for its excellent chromophoric properties. This compound matters for its ability to provide precise and stable coloration, making it a critical intermediate in the synthesis of high-performance dyes and pigments. Industries requiring advanced colorants, such as textile manufacturing, ink formulation, and specialty coatings, rely on this high-purity intermediate to achieve consistent and vibrant results.

Application

• Primary intermediate in the synthesis of high-grade azo disperse dyes for synthetic fibers like polyester and acetate.
• Key chromophore component for manufacturing specialty pigments used in automotive paints and industrial coatings.
• Precursor for functional dyes applied in non-textile areas such as inks for digital printing and toners.
• Used in research and development of novel optical materials and colorimetric sensors.
• Potential intermediate for liquid crystal display (LCD) color filters requiring high lightfastness and purity.

Basic Information

Product Name	2,4-Dihydro-4-[(6-Methoxybenzothiazol-2-Yl)Azo]-5-Methyl-2-Phenyl-3H-Pyrazol-3-One
CAS No.	73038-34-3
Molecular Formula	C18H15N5O2S
Molecular Weight	365.41 g/mol
Synonyms	4-[(6-Methoxy-2-benzothiazolyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-one; 2,4-Dihydro-4-[(6-methoxy-2-benzothiazolyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-one; Azo Pyrazolone Derivative; C.I. Disperse Yellow 119 (related); Methoxybenzothiazolyl Azo Pyrazolone; 3H-Pyrazol-3-one, 2,4-dihydro-4-[(6-methoxy-2-benzothiazolyl)azo]-5-methyl-2-phenyl-; Lightfast Yellow Intermediate
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and high purity, typically exceeding 98% (HPLC). Every lot is supported by a comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles. We maintain traceability and quality standards suitable for industrial and R&D applications, with specifications available to meet specific customer requirements.

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 heat, sparks, and open flame. Due to its light-sensitive nature, containers should be opaque or stored in dark conditions.

Specification

Item	Specification
Appearance	Yellow to Orange Powder
Identification (IR)	Conforms to Standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
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.