In the competitive landscape of hair care products, ingredient quality and detailed specifications are non-negotiable. HC Blue No. 11, a vital component in hair dye formulations, is characterized by a precise set of chemical and physical attributes that ensure its effectiveness and market readiness. Understanding these details is crucial for anyone involved in the procurement and application of this specialized chemical.

The chemical identity of HC Blue No. 11 is clearly defined by its chemical name, 2-[N-(2-hydroxyethyl)-4-(2-methoxyethylamino)-3-nitroanilino]ethanol, and its unique CAS number, 23920-15-2. These identifiers are fundamental for regulatory compliance and for ensuring the correct material is used in manufacturing processes. The molecular formula C13H21N3O5 and molecular weight of 299.32300 provide a blueprint for its chemical behavior, influencing its solubility, reactivity, and stability within a hair dye formulation.

From a quality control perspective, stringent purity standards are essential. HC Blue No. 11 is typically supplied with a purity of ≥99.0% by HPLC, along with controlled levels of ash (≤1.0%) and loss on drying (≤1.0%). These specifications are critical for predictable performance and to prevent unwanted side reactions or impurities in the final product. The appearance of the material as a dark brown powder also serves as an initial quality check.

The physical properties of HC Blue No. 11, such as its density of 1.323 and a high boiling point of 538.371°C, are important considerations for handling, storage, and processing within manufacturing environments. Its flash point of 279.397°C provides safety data for its industrial use. Suppliers like Ningbo Inno Pharmchem Co., Ltd. ensure that their HC Blue No. 11 meets these specifications, making it ready for integration into a wide array of hair dye products. Market readiness is achieved through consistent quality, reliable supply, and comprehensive technical data, enabling manufacturers to innovate with confidence.