Naphthol Dyes
CAS No.: 97-52-9
Molecular formula: C7H8N2O3
Molecular weight: 168.15
Bulk density: 1,211 g/cm3
Purity: 99% by H.P.L.C, 98% by N.V.
Melting point : 140-142oC
Water solubility : slightly soluble
Specification of Fast Red B Base
We are one of China's leading manufacturers, exporters & suppliers of Fast Red B Base (Red B). Its chemical name is 4-Nitro 2-Methoxy Aniline. The CAS Number of Fast Red B Base (Red B) is 97-52-9 and its chemical formula is C6H3NO2OCH3NH2. The most common end use is Pigments.
| Product Name | Fast Red B Base | |||||
| C.I. No. | Azoic Diazo Component 5 (37125) | |||||
| Appearance | Light Yellow powder | |||||
| Shade(coupled with Naphthol AS on cotton) | Similar to Standard | |||||
| Strength (%)(coupled with Naphthol AS on cotton) | 100 | |||||
| Purity (%) | ≥ 98 | |||||
| Moisture (%) | ≤ 2.0 | |||||
| Insolubles (%) | ≤ 1.0 | |||||
| Fastness (coupled with naphthol) | ||||||
| NAPHTHOL | COUPLING RATIO | SUN LIGHT | OXYGEN BLEACHING | CHLORINE BLEACHING | IRONING | |
| LIGHT | DEEP | |||||
| Naphthol AS | 0.71 | 3~4 | 5 | 1 | 4~5 | 5 |
| Naphthol AS-D | 0.67 | 4 | 5~6 | 1 | 3~4 | 5 |
| Naphthol AS-OL | 0.64 | 3~4 | 5~6 | - | 3~4 | 5 |
| Naphthol AS-RL | 0.4 | 4 | 6~7 | - | 4 | 5 |
| Naphthol AS-BO | 0.6 | 5 | 6~7 | 3 | 3 | 4~5 |
| Naphthol AS-ITR | 0.52 | 5 | 6 | 2 | 2 | 4 |
| Packing | ||||||
| 25 kg bag / iron drum | ||||||
| Application | ||||||
| 1. Mainly used for the dyeing and printing on cotton fabrics;2. Also can be used for the production of organic pigments. | ||||||
Applications of Fast Red B Base:
Fast Red B Base is an organic compound which is mainly used for the dyeing and printing on cotton fabrics, it can also be used for the production of organic pigments.
Packing of Fast Red B Base:
in 25 kg bag / iron drum
Storage of Fast Red B Base:
Keep under cool and dry place with good ventilation, away from direct sunlight.
What is Fast Red B Base?
Fast Red B Base, also known as Azoic Diazo Component 5, is easily soluble in acetone, soluble in ethanol, ethyl acetate, acetic acid and benzene. It is insoluble in water.
Fast Red B Base is mainly used for the dyeing and printing on cotton fabrics, it is also used for the production of organic pigments.
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