Description

C.I. Acid Red 310 is a synthetic, water-soluble azo dye belonging to the acid dye class, identified by CAS NO 12235-02-8. It is valued for its bright, vivid red hue and strong affinity for protein-based fibers like wool, silk, and nylon, ensuring excellent colorfastness. This dye is essential for manufacturers in the textile, leather, and paper industries seeking reliable and consistent coloration for their products.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, nylon, and other polyamide fibers to achieve vibrant red shades with good wash and light fastness.
• Leather Finishing: Used in the coloration of leather goods, providing rich, uniform color for apparel, footwear, and accessories.
• Paper Staining: Employed in the production of specialty papers, including decorative and packaging materials, requiring specific color tones.
• Ink Formulation: A component in the manufacture of inks for various printing applications where acid dyes are suitable.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis, depending on purity grade.

Basic Information

Product Name	C.I. Acid Red 310
CAS No.	12235-02-8
Molecular Formula	C32H21N5Na4O19S6
Molecular Weight	1087.98 g/mol
Synonyms	Acid Red 310; C.I. 31240; Acid Leather Red G; Acid Leather Red G (C.I. 31240); Acid Leather Red G 200%; Acid Red 310 (C.I. 31240); Acid Red G; Acid Red G (C.I. 31240); Leather Red G; Sodium 4,4'-(6-phenyl-1,3,5-triazine-2,4-diyl)bis(amino)bis(5-hydroxy-6-[(2-sulfonatophenyl)azo]naphthalene-2,7-disulfonate)
EINECS	Contact for details

Quality Control

Our C.I. Acid Red 310 is produced under strict quality management protocols to ensure batch-to-batch consistency and performance. Each lot undergoes comprehensive analysis, including purity assay, shade verification, and strength testing. Certificates of Analysis (COA) documenting all key parameters are available upon request to support your quality assurance processes.

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 strong oxidizing agents.

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to standard
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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