Furo[3,4-b]pyrazine-5,7-dione
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![Furo[3,4-b]pyrazine-5,7-dione structure](https://file.echemi.com/fileManage/upload/canonicalSmiles/20220811/297193b526874ddb8acaec969a4c690a.png "Furo[3,4-b]pyrazine-5,7-dione")
Furo[3,4-b]pyrazine-5,7-dione
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CAS No:
4744-50-7
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Formula:
C6H2N2O3
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Chemical Name:
Furo[3,4-b]pyrazine-5,7-dione
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Synonyms:
Furo[3,4-b]pyrazine-5,7-dione;2,3-Pyrazinedicarboxylic anhydride;2,3-Pyrazinedicarboxylic acid anhydride;1431859-45-8;1522373-11-0
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CAS No:
Characteristics
69.2
-0.2
white of off-white power
1.7±0.1 g/cm3
>170 °C (decomp)
357.3°C at 760 mmHg
169.9±22.3 °C
1.635
Safety Information
NONH for all modes of transport
3
R36/37/38
S26-S36
Xi:Irritant;
P261-P305 + P351 + P338
H315-H319-H335
|Warning|H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 41 companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Furo[3,4-b]pyrazine-5,7-dione Use and Manufacturing
Pyrazine-2, 3-dicarboxylic acid (4.0 g, 23.8 mmol) was dissolved in acetic anhydride (30 mL).The reaction mixture was refluxed for one hour, and subsequently cooled down to 0 °C in ice bath.The obtained crystals of pyrazine-2, 3-dicarboxylic anhydride were filtered off (yield 70percent).
Computed Properties
Molecular Weight:150.09
XLogP3:-0.2
Hydrogen Bond Acceptor Count:5
Exact Mass:150.00654193
Monoisotopic Mass:150.00654193
Topological Polar Surface Area:69.2
Heavy Atom Count:11
Complexity:194
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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