Description

C.I. Acid Red 388 is a synthetic, high-performance acid dye belonging to the azo chemical class, valued for its bright red hue and strong affinity for polyamide fibers. Its primary commercial value lies in delivering excellent wet fastness properties and vibrant, consistent coloration in demanding industrial dyeing processes. This dye is essential for manufacturers in the textile, leather, and paper industries seeking reliable and efficient colorants for nylon, wool, and silk substrates.

Application

• Primary dyeing and printing of nylon (polyamide) fibers and fabrics.
• Coloration of wool and silk textiles.
• Leather dyeing for footwear, apparel, and upholstery applications.
• Paper coloring for specialty grades requiring acid-fast dyes.
• As a colorant for anodized aluminum in specific industrial finishes.
• Ink formulation for specialized marking and stamping inks.

Basic Information

Product Name	C.I. Acid Red 388
CAS No.	72827-81-7
Molecular Formula	C32H24N8Na2O8S2
Molecular Weight	750.70 g/mol
Synonyms	Acid Red 388; C.I. 12515; Acid Leather Red G; Nylosan Red F-3GL; Telon Red F3GL; Erionyl Red 3GL; Supranol Red 3BW; Acid Fast Red A
EINECS	Contact for details

Quality Control

Our production of C.I. Acid Red 388 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed against key parameters including color strength, shade, solubility, and impurity profile. Certificates of Analysis (COA) documenting purity, physical properties, and conformance to agreed specifications are provided with every shipment.

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. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Reddish-brown powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
pH (1% Solution)	6.0 - 8.0
Shade	Conforms to standard
Fastness Properties	Contact for details

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