Product Name1,1-Dibromoethane
CAS557-91-5
Molecular FormulaC2H4Br2
Molecular Weight187.86
InChIInChI=1S/C2H4Br2/c1-2(3)4/h2H,1H3
InChIKey APQIUTYORBAGEZ-UHFFFAOYSA-N
SmilesC(Br)(Br)C

Mass
MS-NW-4429 1,1-dibromoethane C2H4Br2 (Mass of molecular ion: 186)
Source Temperature: 240 °C Sample Temperature: 170 °C Reservoir, 75 eV
25.0 1.6
26.0 11.3
27.0 100.0
28.0 3.9
79.0 4.1
80.0 1.6
81.0 4.1
82.0 1.6
105.0 2.5
106.0 1.8
107.0 74.5
108.0 2.7
109.0 69.9
110.0 1.6
171.0 1.0
173.0 2.0
186.0 6.3
188.0 11.9
190.0 5.9
90 MHz in CDCl3
parameter in CDCl3

| 1H NMR | 89.56 MHz |
| C2 H4 Br2 | 0.04 ml : 0.5 ml CDCl3 |
| 1,1-dibromoethane | |
![]() |
Assign. Shift(ppm) |
Hz ppm Int.
532.69 5.948 75
526.38 5.878 230
520.13 5.808 233
513.88 5.738 80
223.31 2.494 1000
221.69 2.476 34
217.00 2.423 967

| 1H NMR | 300 MHz |
| C2 H4 Br2 | 10 % in CCl4 |
| 1,1-dibromoethane | |
![]() |
Parameter ppm Hz |
Hz ppm Int.
1752.86 5.843 82
1746.53 5.822 247
1740.17 5.801 249
1733.84 5.779 85
741.48 2.472 1000
735.12 2.450 988
in CDCl3

liquid film

4880 A,200 M,liquid

1,1-Dibromoethane(557-91-5) 1H NMR Atlas of Related Products