2-Butene, 2-methyl-

Molecular Structure of 2-Methyl-2-butene (CAS NO.513-35-9):

Molecular Formula: C₅H₁₀
Molecular Weight: 70.1329
IUPAC Name: 2-Methylbut-2-ene
Synonyms of: 1,1,2-Trimethylethylene ; 2-Butene, 2-methyl- ; 2-Methylbut-2-ene ; 3-Methyl-2-butene ; AI3-37711 ; Amylene (VAN) ; EINECS 208-156-3 ; Ethylene, trimethyl- ; HSDB 2072 ; NSC 74118 ; Trimethylethylene ; beta-Isoamylene ; n-Amylene ; 2-Methyl-2-butene [UN2460] [Flammable liquid] ; UN2460
CAS NO: 513-35-9
Classification Code: Acyclic ; Alkenes ; Organic Building Blocks
Melting point: -134 °C 
Index of Refraction: 1.396
Molar Refractivity: 25.11 cm³
Molar Volume: 104.4 cm³
Surface Tension: 17.7 dyne/cm
Density: 0.671 g/cm³
Enthalpy of Vaporization: 26.31 kJ/mol
Boiling Point: 36 °C at 760 mmHg
Vapour Pressure: 511 mmHg at 25°C

  2-Methyl-2-butene (CAS NO.513-35-9) is used for the Dehydrogenation of isoprene, and it is also used as synthetic rubber, resins and intermediates in organic synthesis.

Hazard Codes of 2-Methyl-2-butene (CAS NO.513-35-9): F,Xn,N,F+
Risk Statements:
11:  Highly Flammable
12:  Extremely Flammable
19:  May form explosive peroxides
22:  Harmful if swallowed 
36:  Irritating to the eyes
37:  Irritating to the respiratory system
38:  Irritating to the skin
51:  Toxic to aquatic organisms
53:  May cause long-term adverse effects in the aquatic environment
65:  Harmful: May cause lung damage if swallowed
Safety Statements:
9:  Keep container in a well-ventilated place
16:  Keep away from sources of ignition - No smoking
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
33:  Take precautionary measures against static discharges
36:  Wear suitable protective clothing 
37:  Wear suitable gloves
39:  Wear eye/face protection
45:  In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
61:  Avoid release to the environment. Refer to special instructions safety data sheet

 2-Methyl-2-butene (CAS NO.513-35-9) is a hydrocarbon which also can be called for 3-Methyl-2-butene ; 1,1,2-Trimethylethylene ; 2-butene, 2-methyl- ; b-isoamylene ; .beta.-Isoamylene ; Ethylene, trimethyl- ; 2-Methylbut-2-ene ; Amylene (VAN) ; n-Amylene . It is an useful thing .For example: it can be used not only for the production of isoprene by dehydrogenation, and as  intermediates of synthetic rubber, resins and organic synthesis; but also as gasoline blending agent to improve the octane number and comparison samples in gas chromatography.You can get prenyl by separation from fraction of solvent by solvent extraction.
It is hazardous,so the first aid measures and others should be known .Such as: When on the skin: first,should  flush skin with plenty of water immediatelyfor at least 15 minutes while removing contaminated clothing and .Secondly,Get shoesmedical aid . Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids.Then get medical aid soon.While ,it's Inhaled: Remove from exposure and move to fresh air immediately.Give artificial respiration While not breathing. when breathing is difficult, give oxygen.And as soon as to get medical aid .Then you have the ingesting of the product : Wash mouth out with water,and get medical aid immediately. Notes to Physician: Treat supportively and symptomatically.
In addition, it could stabilize existence.It is not compatible with ignition sources, acids,and you must not take it with  ignition sources and incompatible materials .And also prevent it to broken down into hazardous decomposition products: carbon dioxide,carbon monoxide.