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Product Details:
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| Product Name: | 4-Bromo-1,8- Naphthalic Anhydride | CAS NO.: | CAS NO.81-86-7，21563-29-1 |
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| Color: | White To Light Yellow Powder To Crystaline | Purity: | 98% |
| Molecular Formula: | C12H5BrO3 | Molecular Weight: | 277.07 |
| H-Bond Acceptor: | 3 | Application: | Intermediate Of Fluorescent Brightener,polymers |
| Highlight: | 21563-29-1 Dyes Intermediate,4Br Orange Powder Dyes Intermediate,CAS No.21563-29-1 For Fluorescent Brightener |
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CAS No.21563-29-1 Orange Powder Intermediate for Fluorescent Brightener
1. Product Description:
4-Bromo-1,8-Naphthalic Anhydride is also used as an important intermediate of fluorescent brightener, especially for fluorescent polymers. Fine Chemical Intermediate and Dyestuff Intermediates are its main application ranges.
On the other hand, 4-Bromo-1,8-Naphthalic Anhydride is a kind of new intermediate of fluorescent yellow & orange dyes and fluorescent whitening agent. In the industry of dyestuff, raw materials of high quality play an important role in the whole production procedure. It is mainly used for the preparation of fluorescent yellow, fluorescent orange, and other dyes.
2.Specification:
| Product Name | 4-Bromo-1,8-Naphthalic Anhydride |
| CAS Number | CAS NO.81-86-7,21563-29-1 |
| Appearance&Physical State | Off-white to beige and faint brown to light brown powder |
| Purity | 98% |
| Soluble | higher solubility in acetone, lowest solubility in the methanol and ethanol |
| Melting Point | 217-219ºC |
| Density | 1.812 g/cm3 |
| Molecular Weight | 277.07 |
| Storage Condition | well-closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. |
| Use | Fine Chemical Intermediate; Dyestuff Intermediates;Mainly used for the preparation of fluorescent yellow, fluorescent orange and other dyes. |
3. Structural Formula:
4. Catalogue:
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