Description

Acid Red 1 is a synthetic anionic azo dye known for its vibrant red color and good water solubility. It is a critical component for imparting durable and consistent coloration across a range of industrial and commercial materials. This dye is primarily utilized by manufacturers in the textile, leather, paper, and specialty ink industries seeking reliable and cost-effective red colorants for their products.

Application

• Textile Dyeing: Used for dyeing protein fibers like wool, silk, and nylon, as well as for coloring acrylic fibers.
• Leather Finishing: Applied in the dyeing of leather goods to achieve uniform and vibrant red shades.
• Paper Coloring: Employed in the production of colored papers, tissues, and packaging materials.
• Ink Formulation: Serves as a colorant in the manufacture of inks for ballpoint pens, stamp pads, and other specialty applications.
• Biological Staining: Used in histology and microscopy as a staining agent for biological tissues.
• Indicator Applications: Can be utilized as a pH indicator in certain analytical and educational contexts.

Basic Information

Product Name	Acid Red 1
CAS No.	3734-67-6
Molecular Formula	C18H13N3Na2O8S2
Molecular Weight	509.42 g/mol
Synonyms	Acid Red 1; C.I. 18050; Food Red 10; Amidonaphthol Red G; Wool Red B; Lissamine Red 2G; Acid Leather Red BG; Acid Fast Red A; 4-Hydroxy-3-[(2-methoxy-5-methyl-4-sulfophenyl)azo]-1-naphthalenesulfonic acid disodium salt
EINECS	223-098-1

Quality Control

Our Acid Red 1 is produced under a stringent quality management system to ensure batch-to-batch consistency and reliability. Each lot is tested against comprehensive specifications for color strength, purity, solubility, and shade. A Certificate of Analysis (COA) detailing the results for key parameters such as assay (HPLC), heavy metal content, and moisture is provided with every shipment to guarantee compliance with your application 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 incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 85%
Moisture (Karl Fischer)	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm
Ash Content	≤ 30%

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