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4-Bromo-1,8-naphthalic Anhydride

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Origin: China

Cas No: 81-86-7

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Products Specification
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CAS No.: 81-86-7 Formula: C12H5BrO3 Molecular Weight: 277.07000

Basic Info

Chemical Name	4-Bromo-1,8-naphthalic Anhydride
Synonyms	1H,3H-Naphtho[1,8-cd]pyran-1,3-dione, 6-bromo-; 4-Bromo-1,8-naphthalic anhydride;
CAS No.	81-86-7
Molecular Formula	C12H5BrO3
Molecular Weight	277.07000
PSA	43.37000
LogP	2.91290

Properties

Appearance & Physical State	White to yellow solid
Density	1.812g/cm3
Boiling Point	467.2ºC at 760 mmHg
Melting Point	217-219ºC
Flash Point	236.3ºC
Refractive Index	1.733
Soluble	higher solubility in acetone, lowest solubility in the methanol and ethanol
Vapor Pressure	6.66E-09mmHg at 25°C

Safety Info

Safety Statements	S26-S37/39
HS Code	2932999099
WGK Germany	3
Risk Statements	R36/37/38
Hazard Codes	Xi

Synthesis Route

naphthalic anhydride→4-Bromo-1,8-naphthalic Anhydride
5-bromo-1,2-dihydroacenaphthylene→4-Bromo-1,8-naphthalic Anhydride
7-bromophenalenone→4-Bromo-1,8-naphthalic Anhydride

Precursor

5-bromo-1,2-dihydroacenaphthylene
7-bromophenalenone
naphthalic anhydride

Downstream Product

4-N,N-dimethylaminonaphthalene-1,8-dicarboxylic acid anhydride
5-bromo-1,2-dihydroacenaphthylene
1,8-Naphthalimide
acrylonitrile

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