Products Description of Basic Red 51 CAS# 12270-25-6
Basic Red 51, also known as Cationic Red M-RL, is a cationic azo basic dye. It appears as dark blue to black fine powder, soluble in water and alcohols, and delivers bright red shade with strong tinting strength. It features good affinity for acrylic fibers and cationic dyeing performance. It has stable dyeing properties and uniform color shade, and can be matched with other cationic dyes for color blending.
This dye is widely supplied in industrial grade with consistent strength and low impurity content. It is suitable for textile dyeing, paper coloring and semi-permanent hair color formulations, and can be adjusted according to customers’ strength requirements.
Basic Red 51 Chemical Properties
| Product Name: | Basic Red 51 |
| Synonyms: | BASIC RED 51;C.I. BASIC RED 51;Red M-RL;Basacryl Red X-BL;Maxilon Red M-RL;4-[(1,3-dimethylimidazol-1-ium-2-yl)diazenyl]-N,N-dimethylaniline;Basic Red 51 - Technical grade;Basic Red 51 ISO 9001：2015 REACH |
| CAS: | 12270-25-6 |
| MF: | C13H18ClN5 |
| MW: | 279.76852 |
| Mol File: | 12270-25-6.mol |
| Melting Point: | 197 ℃ |
| pH (aqueous dye bath) | 4.0–7.0 (stable range) |
| Loss on drying | ≤7.0 % |
| Ash content | ≤1.0 % |
| Purity (HPLC) | ≥95.0 % |
| Light fastness | Grade 6 |
| Soaping fastness | Grade 4–5 |
| storage temp. | Refrigerator, Under inert atmosphere |
| solubility | Methanol (Slightly, Sonicated), Water (Slightly) |
| form | Solid |
| color | Very Dark Blue to Black |
| CAS DataBase Reference | 12270-25-6 |
| Hazard Statements | H302, H315, H319, H335 |
| UN Transport Number | Not applicable |
Product Application of Basic Red 51 CAS# 12270-25-6
Textile Industry: Basic Red 51 is widely used for dyeing acrylic fibers and their blends, providing fabrics with a bright red hue. It is also suitable for dyeing modified polyester fibers, delivering specific color effects.
Paper Industry: It can be applied in paper dyeing to achieve the desired red shade, commonly used in the production of specialty papers such as art paper and wrapping paper.
Cosmetics Industry: Primarily used in hair dyes, Basic Red 51 imparts a red tone to hair, catering to diverse hair color preferences.
