Description

3-Nitronaphthalene-1,5-Disulphonic Acid is a key aromatic sulfonic acid derivative, serving as a vital intermediate in the synthesis of high-value dyes and pigments. Its disulfonic acid functionality provides excellent water solubility and reactivity, making it indispensable for creating vivid and stable colorants. This compound is primarily sought after by manufacturers in the dye and pigment industries, as well as by research institutions developing novel organic materials.

Application

• Dye Intermediate: A crucial precursor for the synthesis of azo dyes, acid dyes, and direct dyes, imparting color to textiles, leather, and paper.
• Pigment Manufacturing: Used in the production of organic pigments for inks, coatings, and plastics, where color fastness and stability are required.
• Chemical Synthesis: Acts as a versatile building block for more complex sulfonated aromatic compounds in pharmaceutical and agrochemical research.
• Research & Development: Employed in academic and industrial labs for studying sulfonation reactions and developing new chromophores.
• Photographic Chemicals: Can be utilized in the synthesis of certain specialty chemicals used in photographic processes.

Basic Information

Product Name	3-Nitronaphthalene-1,5-Disulphonic Acid
CAS No.	117-86-2
Molecular Formula	C₁₀H₇NO₈S₂
Molecular Weight	333.29 g/mol
Synonyms	1,5-Naphthalenedisulfonic acid, 3-nitro-; 3-Nitro-1,5-naphthalenedisulfonic acid; Naphthalene-1,5-disulfonic acid, 3-nitro-; 3-Nitronaphthalene-1,5-disulfonic acid; 5-Nitro-naphthalene-1,5-disulfonic acid; NSC 4035; 3-Nitro-1,5-NDSA
EINECS	204-212-4

Quality Control

Our 3-Nitronaphthalene-1,5-Disulphonic Acid is produced under a stringent quality management system. Each batch is analyzed to ensure it meets precise chemical and physical specifications, including purity, identity, and impurity profiles. Certificates of Analysis (COA) documenting these results are provided to guarantee batch-to-batch consistency and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from incompatible materials. Recommended storage temperature is 15-25°C. The product is hygroscopic (moisture-sensitive) and should be kept under dry conditions.

Specification

Item	Specification
Appearance	Yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Sulfated Ash	≤ 0.5%
Heavy Metals	≤ 20 ppm

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