1,4-Dibromo-2,3-butanedione(6305-43-7) MS
Product Name1,4-Dibromo-2,3-butanedione
CAS6305-43-7
Molecular FormulaC4H4Br2O2
Molecular Weight243.88
InChIInChI=1S/C4H4Br2O2/c5-1-3(7)4(8)2-6/h1-2H2
InChIKey RZMOICJDRADLCT-UHFFFAOYSA-N
SmilesC(Br)C(=O)C(=O)CBr
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MassMS-NW-6543 1,4-dibromo-2,3-butanedione C4H4Br2O2 (Mass of molecular ion: 242)
Source Temperature: 240 °C Sample Temperature: 190 °C Reservoir, 75 eV
14.0 5.5 26.0 1.3 27.0 2.5 28.0 1.7 41.0 1.9 42.0 100.0 43.0 7.7 79.0 2.1 80.0 1.6 81.0 2.1 82.0 1.6 92.0 1.4 93.0 22.9 94.0 1.5 95.0 21.9 120.0 1.2 121.0 51.7 122.0 2.1 123.0 49.0 124.0 1.3 242.0 1.1 244.0 2.1 246.0 1.0
parameter in CDCl3
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1H NMR 300 MHz C4 H4 Br2 O2 0.045 g : 0.5 ml CDCl3 1,4-dibromo-2,3-butanedione 
Parameter ppm Hz
D(A) 4.330
Hz ppm Int.1299.00 4.330 1000
in CDCl3
KBr disc
nujol mull
