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   ChemNet > CAS > 4053-08-1 4-Chloro-1,8-naphthalic anhydride

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4053-08-1 4-Chloro-1,8-naphthalic anhydride

product Name 4-Chloro-1,8-naphthalic anhydride
CAS No 4053-08-1
Synonyms 4-chloronaphthalene-1,8-dicarboxylic anhydride; 4-Chloronaphthalene-1,8-Naphthalic Anhydride; 6-chloro-1H,3H-benzo[de]isochromene-1,3-dione
Molecular Formula C12H5ClO3
Molecular Weight 232.6193
InChI InChI=1/C12H5ClO3/c13-9-5-4-8-10-6(9)2-1-3-7(10)11(14)16-12(8)15/h1-5H
EINECS 223-760-7
Molecular Structure 4053-08-1 4-Chloro-1,8-naphthalic anhydride
Density 1.565g/cm3
Melting point 207-210℃
Boiling point 450.9°C at 760 mmHg
Refractive index 1.715
Flash point 208.3°C
Vapour Pressur 2.53E-08mmHg at 25°C
Hazard Symbols  Xi:Irritant;
Risk Codes R36/37/38:;
Safety Description S24/25:;
MSDS Material Safety Data Sheet

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Specifications 99% min
Packing 25kg 50kg drum or bag
Description What is 4-Chloro-1,8-naphthalic anhydride? Appearance:off-white to light yellow crystal powder Assay: 99% min by HPLC IR Identity: conform to standard HNMR£º conform to standard carbon spectrum: conform to standard Water by K. F.:0.5% max or as per the customer¡¯s request Loss on drying:0.5% max. or as per the customer¡¯s request =================================================================== Main uses: As an important intermediate for synthesizing dyes, pigments, and fluorescent whitening agents (such as fluorescent whitening agent AT), it is also used to prepare special organic compounds such as fluorescent yellow and fluorescent orange, commonly used in the research and development of chemical and fine chemicals. ============================================================================== Synthesis route: Usually prepared by electrophilic chlorination reaction of 1,8-naphthalic anhydride with chlorine gas (or hypochlorite) in aqueous sodium hydroxide solution, with reactio...
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