Description

2-(p-Nitrophenyl)-2H-Naphtho[1,2-D]Triazole-6,8-Disulphonic Acid CAS NO 130-34-7 is a specialized organic intermediate featuring a naphthotriazole core functionalized with sulphonic acid groups and a nitrophenyl substituent. This compound matters for its role as a key precursor in the synthesis of advanced materials, particularly high-performance dyes and optical brightening agents. Industrial buyers in the fine chemical, specialty dye, and polymer additive sectors require this material for developing products with enhanced color fastness, fluorescence, and chemical stability.

Application

• Key intermediate for the synthesis of optical brightening agents (OBAs) and fluorescent whitening agents used in paper, textiles, and detergents.
• Precursor in the manufacture of specialized azo dyes and pigments for high-value applications requiring specific lightfastness and hue.
• Building block for functional polymers and coatings where sulphonic acid groups impart solubility or ionic character.
• Used in research and development of fluorescent probes and sensors due to its triazole-based conjugated structure.
• Intermediate in the production of corrosion inhibitors and specialty additives for industrial fluids.
• Starting material for pharmaceutical intermediates and agrochemicals that utilize the triazole pharmacophore.

Basic Information

Product Name	2-(p-Nitrophenyl)-2H-Naphtho[1,2-D]Triazole-6,8-Disulphonic Acid
CAS No.	130-34-7
Molecular Formula	C₁₇H₁₀N₄O₈S₂
Molecular Weight	462.41 g/mol
Synonyms	2-(4-Nitrophenyl)-2H-naphtho[1,2-d][1,2,3]triazole-6,8-disulfonic acid; 4-Nitro-2-(2H-naphtho[1,2-d]triazol-2-yl)benzenesulfonic acid; Naphtho[1,2-d]triazole-6,8-disulfonic acid, 2-(4-nitrophenyl)-; 2-(4-Nitrophenyl)naphtho[1,2-d]triazole-6,8-disulfonic Acid; Fluorescent Brightener intermediate; OBA Intermediate; NTDA
EINECS	Contact for details

Quality Control

Our production of 2-(p-Nitrophenyl)-2H-Naphtho[1,2-D]Triazole-6,8-Disulphonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity for industrial applications. All material is subjected to rigorous analytical testing, including HPLC for assay and purity, and identification by FT-IR. A comprehensive Certificate of Analysis (COA) detailing specifications and test results is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled 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 can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Yellow to brownish-yellow powder or crystalline solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulphur Content	Contact for details
Heavy Metals	≤ 20 ppm

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