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Cas Database |
| Name |
4-Bromo-1,8-naphthalic anhydride |
EINECS | 201-382-3 |
| CAS No. | 21563-29-1 | Density | 1.812 g/cm3 |
| PSA | 43.37000 | LogP | 2.91290 |
| Solubility | N/A | Melting Point |
217-219 ºC |
| Formula | C12H5BrO3 | Boiling Point | 467.2 ºC at 760 mmHg |
| Molecular Weight | 277.074 | Flash Point | 236.3 ºC |
| Transport Information | N/A | Appearance | loose-shaped white or off-white crystalline powder |
| Safety | S26 | Risk Codes | R36/37/38 |
| Molecular Structure |
|
Hazard Symbols |
 Xi
|
| Synonyms |
Naphthalic anhydride, 2-bromo- (8CI);2-Bromo-1,8-naphthalic anhydride;1H,3H-Naphtho[1,8-cd]pyran-1,3-dione,4-bromo-; |
Article Data | 4 |
4-Bromo-1,8-naphthalic anhydride Chemical Properties
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Systematic Name: 6-Bromo-1H,3H-benzo[de]isochromene-1,3-dione
Molecular Formula: C12H5BrO3
Molecular Weight: 277.07 g/mol
Canonical SMILES: C1=CC2=C(C=CC3=C2C(=C1)C(=O)OC3=O)Br
InChI: InChI=1S/C12H5BrO3/c13-9-5-4-8-10-6(9)2-1-3-7(10)11(14)16-12(8)15/h1-5H
Product Categories: Intermediates of Dyes and Pigments
Melting point: 217-219 °C(lit.)
Index of Refraction: 1.733
Molar Refractivity: 61.21 cm3
Molar Volume: 152.8 cm3
Polarizability: 24.26×10-24 cm3
Surface Tension: 68 dyne/cm
Density: 1.812 g/cm3
Flash Point: 236.3 °C
Enthalpy of Vaporization: 72.91 kJ/mol
Boiling Point: 467.2 °C at 760 mmHg
Vapour Pressure of 4-Bromo-1,8-naphthalic anhydride (CAS NO.21563-29-1): 6.66E-09 mmHg at 25 °C
4-Bromo-1,8-naphthalic anhydride Uses
4-Bromo-1,8-naphthalic anhydride (CAS NO.21563-29-1) is mainly used as dye intermediate for the manufacture of fluorescent yellow, fluorescent orange,etc.
4-Bromo-1,8-naphthalic anhydride Safety Profile
Hazard Codes: 
Xi
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany: 3
Hazard Note: Irritant
HazardClass of 4-Bromo-1,8-naphthalic anhydride (CAS NO.21563-29-1): Irritant
4-Bromo-1,8-naphthalic anhydride Specification
4-Bromo-1,8-naphthalic anhydride (CAS NO.21563-29-1), its Synonyms are 4-Bromonaphthalene-1,8-dicarboxylic anhydride ; 2-Bromo-1,8-naphthalic anhydride ; 8-Bromo-1,8-naphthalic anhydride . It is loose-shaped white or off-white crystalline powder.
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