Hydroxybenzomorpholine

Product Description

Hydroxybenzomorpholine is a specialized heterocyclic aromatic amine used predominantly as a high-performance color coupler in oxidative hair dye formulations. Manufactured in our advanced chemical facility, this intermediate is essential for achieving specific cool-toned brown and deep mahogany shades. It reacts precisely with primary intermediates (such as p-phenylenediamines) under oxidative conditions to develop rich, multi-dimensional pigments. Its superior chemical stability and high reactivity make it a commercially vital component for professional salon brands and retail hair color manufacturers globally.

Product Specification

• INCI Name: Hydroxybenzomorpholine
• CAS No.: 26021-03-4
• Chemical Name: 7-Hydroxybenzomorpholine / 3,4-Dihydro-2H-1,4-benzoxazin-6-ol
• Product Type: Hair Dye Intermediate / Color Coupler
• Appearance: Off-white to light grey or beige crystalline powder
• Purity (HPLC): ≥ 98.0%
• Melting Point: 120.0°C - 126.0°C
• Loss on Drying: ≤ 0.5%

Key Benefits & Applications

• Vibrant Color Development: Acts as a versatile coupler to produce intense, stable pigments that resist fading and "brassiness" over time.
• Excellent Fiber Substantivity: Ensures even color distribution from root to tip, providing 100% grey coverage when used in optimized formulations.
• High Purity for Safety: Our rigorous purification process minimizes residual impurities, reducing the risk of scalp irritation and ensuring compliance with international cosmetic safety standards.
• Synergistic Toning: Specifically effective in neutralizing unwanted warm undertones, allowing formulators to create sophisticated ash and cool-natural palettes.
• Applications: Primarily used in permanent oxidative hair color creams, semi-permanent toning gels, and professional color-depositing treatments.

Formulation Guidelines

• Suggested Usage: Typically used at 0.1% – 2.0%, depending on the desired final shade intensity.
• Oxidative Requirements: Must be used in conjunction with an oxidizing agent (such as Hydrogen Peroxide) and a primary intermediate (e.g., p-Phenylenediamine or PPD).
• pH Range: Most effective in alkaline conditions (pH 9.0 – 11.0) common in permanent hair coloring systems.
• Solubility: Soluble in alcohol and glycols; sparingly soluble in water. It is recommended to pre-dissolve in the solvent phase of the emulsion.
• Synergy: Combine with Ascorbic Acid (Vitamin C) to prevent premature oxidation during the mixing process, ensuring a more uniform and long-lasting color deposit on the hair shaft.