52239-04-0
52239-04-0 structure
- Name: Disperse Blue 148
- Chemical Name: methyl 3-[N-ethyl-4-[(5-nitro-2,1-benzothiazol-3-yl)diazenyl]anilino]propanoate
- CAS Number: 52239-04-0
- Molecular Formula: C19H19N5O4S
- Molecular Weight: 413.45000
- Catalog: Dye Reagents
- Create Date: 2018-04-17 08:00:00
- Modify Date: 2024-01-03 11:46:08
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Disperse Blue 148 is the best high-temperature trichromatic blue azo dye.Target:Single-crystal structures of the best high-temperature trichromatic blue azo dye C.I. Disperse Blue 148 and its diazonium component 3-amino-5-nitro-[2,1]- benzisothiazole are described herein. C.I. Disperse Blue 148 exhibits an essentially coplanar molecular structure and a dimeric packing mode between adjacent phenyl and benzisothiazole rings. Particularly, PXRD measurement reveals the existence of a new crystalline form of C.I. Disperse Blue 148 having the highest melting point and the best thermal stability, which is obviously different from all the known α, β, and γ forms. [1]
| Name | methyl 3-[N-ethyl-4-[(5-nitro-2,1-benzothiazol-3-yl)diazenyl]anilino]propanoate |
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| Synonyms |
methyl n-ethyl-n-(4-((5-nitro-2,1-benzisothiazol-3-yl)azo)phenyl)-|A-alaninate
Disperse Blue 148 EINECS 257-779-7 |
| Description | Disperse Blue 148 is the best high-temperature trichromatic blue azo dye.Target:Single-crystal structures of the best high-temperature trichromatic blue azo dye C.I. Disperse Blue 148 and its diazonium component 3-amino-5-nitro-[2,1]- benzisothiazole are described herein. C.I. Disperse Blue 148 exhibits an essentially coplanar molecular structure and a dimeric packing mode between adjacent phenyl and benzisothiazole rings. Particularly, PXRD measurement reveals the existence of a new crystalline form of C.I. Disperse Blue 148 having the highest melting point and the best thermal stability, which is obviously different from all the known α, β, and γ forms. [1] |
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| Related Catalog | |
| References |
| Density | 1.38g/cm3 |
|---|---|
| Boiling Point | 597.5ºC at 760 mmHg |
| Molecular Formula | C19H19N5O4S |
| Molecular Weight | 413.45000 |
| Flash Point | 315.2ºC |
| Exact Mass | 413.11600 |
| PSA | 141.21000 |
| LogP | 5.53250 |
| Index of Refraction | 1.662 |
| Storage condition | -20℃ |