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2-Bromo-1,8-naphthalic anhydride

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Origin: China

Cas No: 21563-29-1

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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CAS No.: 21563-29-1 Formula: C12H5BrO3 Molecular Weight: 277.07000

Basic Info

Chemical Name	2-Bromo-1,8-naphthalic anhydride
Synonyms	8-bromo-1,8-naphthalic anhydride; 4-Bromobenzo[de]isochromene-1,3-dione; 2-Brom-naphthalin-1,8-dicarbonsaeure-anhydrid; 2-bromonaphthalic anhydride; 4-Bromonaphthalene-1,8-dicarboxylic anhydride; 2-Bromnaphthalin-1,8-dicarbonsaeure; 2-bromo-1,8-naphthalic anhydride; 2-bromo-naphthalene-1,8-dicarboxylic acid-anhydride; 4-Bromo-1,8-naphthalic anhydride[Incorrect name];
CAS No.	21563-29-1
Molecular Formula	C12H5BrO3
Molecular Weight	277.07000
PSA	43.37000
LogP	2.91290

Properties

Appearance & Physical State	loose-shaped white or off-white crystalline powder
Density	1.812 g/cm3
Boiling Point	467.2ºC at 760 mmHg
Melting Point	253 - 254 °C (acetic acid), 259 - 260 °C (acetic anhydride)
Flash Point	236.3ºC

Safety Info

Safety Statements	S26
HS Code	2942000000
WGK Germany	3
Risk Statements	R36/37/38
Hazard Codes	Xi

Synthesis Route

3-bromo-1,2-dihydroacenaphthylene→2-Bromo-1,8-naphthalic anhydride
4-bromophenalenone→2-Bromo-1,8-naphthalic anhydride
4-hydroxy-1H-phenalene-1-one→2-Bromo-1,8-naphthalic anhydride

Precursor

4-aminophenalen-1-one
4-bromophenalenone
3-bromo-1,2-dihydroacenaphthylene
3-bromoacenaphthylene

Downstream Product

4-BROMO-3-NITRO-1,8-NAPHTHALIC ANHYDRIDE

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