Acid Red 18 (CAS 2611-82-7) is a foundational chemical in many industrial coloring processes. Its detailed understanding is crucial for research scientists and product developers aiming to leverage its unique properties. As a primary manufacturer and supplier, we provide comprehensive insights into this versatile azo dye, detailing its chemical composition, physical characteristics, and broad application spectrum.
Chemically, Acid Red 18 is identified by its molecular formula C20H11N2Na3O10S3 and a molecular weight of 604.47. This synthetic azo dye is prized for its significant water solubility, a key attribute that facilitates its seamless integration into aqueous-based formulations. Its physical form is typically a red powder, with specifications often including a strength of 100%±<2%, ensuring consistent coloring power. The low moisture content (≤8%) and minimal insolubles (≤0.2%) further underscore its quality and suitability for precise industrial applications.
The industrial utility of Acid Red 18 is extensive. It serves as a vital dye intermediate, meaning it's a crucial building block for synthesizing other complex dyes and colorants. Beyond this, its direct applications are widespread: it's used extensively in the dyeing of natural and synthetic fibers such as wool, silk, and polyamide, offering brilliant red shades. Its application also extends to the leather industry for uniform coloration and the paper sector for aesthetic enhancements. Furthermore, it finds use in specific cosmetic formulations and inks, demonstrating its versatility across different manufacturing domains.
For R&D professionals and purchasing managers, acquiring Acid Red 18 from a reputable manufacturer ensures not only quality but also reliable supply. Understanding its stability – it is generally stable to light, heat, and acid but can fade with ascorbic acid – helps in its proper handling and application. We encourage those looking to buy Acid Red 18 to consider our capabilities as a manufacturer and supplier, providing the technical data and consistent product needed for successful industrial outcomes.
To explore how Acid Red 18 can benefit your specific industrial needs, we invite you to contact us for more information on its properties, applications, and wholesale purchasing options. Our commitment as a China-based chemical producer is to support your innovation and production with high-grade materials.
Manufacturing Facilities






Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.