2-butene 2-butene
structural formula
| business number | 02ue |
|---|---|
| molecular formula | c4h8 |
| molecular weight | 56.11 |
| label |
2-butene, 2-n-butyl, trans-butene-2, trans-b-butylene, trans-sym-dimethylethylene, trans-pseudobutylene, trans-2-butene, (2e)-2-butene, 2-buten, 2-butene(cis+trans) |
numbering system
cas number:107-01-7
mdl number:mfcd00064458
einecs number:210-855-3
rtecs number:em2932000
brn number:none
pubchem id:none
physical property data
1. characteristics: undetermined
2. density (g/ml, 25℃): undetermined
3. relative vapor density (g/ml, air=1 ): 2
4. melting point (ºc): -140
5. boiling point (ºc, normal pressure): 1
6. boiling point (ºc, kpa): not determined
7. refractive index (d20): not determined
8. flash point (ºc ): undetermined
9. specific rotation (ºc): undetermined
10. autoignition point or ignition temperature (ºc): undetermined
11. vapor pressure (mmhg, 37.7ºc): 2575
12. saturated vapor pressure (kpa, 10ºc): undetermined
13. heat of combustion (kj/mol): undetermined determined
14. critical temperature (ºc): undetermined
15. critical pressure (kpa): undetermined
16. oil and water (octanol/water ) log value of distribution coefficient: undetermined
17. explosion upper limit (%, v/v): undetermined
18. explosion lower limit (%, v/v): undetermined determined
19. solubility: undetermined
toxicological data
1. acute toxicity: mice inhaled lc50: 425ppm;
ecological data
none yet
molecular structure data
1. molar refractive index: 20.63
2. molar volume (cm3/mol): 88.1
3. isotonic specific volume (90.2k ): 178.5
4. surface tension (dyne/cm): 16.7
5. polarizability (10-24cm3): 8.18
compute chemical data
1. hydrophobic parameter calculation reference value (xlogp): 2.3
2. number of hydrogen bond donors: 0
3. number of hydrogen bond acceptors: 0
4. ���number of rotational chemical bonds: 0
5, number of tautomers:
6, topological molecular polar surface area (tpsa): 0
7 , number of heavy atoms: 4
8, surface charge: 0
9, complexity: 15.2
10, number of isotope atoms: 0
11. determine the number of atomic stereocenters: 0
12. uncertain number of atomic stereocenters: 0
13. determine the number of chemical bond stereocenters: 1
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14. number of uncertain chemical bond stereocenters: 0
15. number of covalent bond units: 1
properties and stability
none yet
storage method
none yet
synthesis method
none yet
purpose
none yet
