Product Name

  • Name

    cis-2-Pentene

  • EINECS 210-988-7
  • CAS No. 627-20-3
  • Article Data200
  • CAS DataBase
  • Density 0.669 g/cm3
  • Solubility
  • Melting Point -180 °C(lit.)
  • Formula C5H10
  • Boiling Point 37.5 °C at 760 mmHg
  • Molecular Weight 70.1344
  • Flash Point ?1 °F
  • Transport Information UN 3295
  • Appearance colourless liquid
  • Safety 9-16-26-29-33-36-62
  • Risk Codes 11-36/37/38-65
  • Molecular Structure Molecular Structure of 627-20-3 (cis-2-Pentene)
  • Hazard Symbols FlammableF,HarmfulXn
  • Synonyms 2-Pentene,(Z)- (8CI);2-Pentene, cis- (7CI);(Z)-2-Pentene;cis-2-Pentene;cis-Pentene;cis-b-Amylene;
  • PSA 0.00000
  • LogP 1.97250

2-Pentene, (2Z)- Specification

This chemical is called 2-Pentene, (2Z)-, and its systematic name is (2Z)-pent-2-ene. With the molecular formula of C5H10, its molecular weight is 70.13. The CAS registry number of this chemical is 627-20-3. Additionally, its product categories are Acyclic; Alkenes; Organic Building Blocks. It's used as a solvent in organic synthesis and as a polymerization inhibitor.

Other characteristics of the 2-Pentene, (2Z)- can be summarised as followings: (1)ACD/LogP: 2.89; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.89; (4)ACD/LogD (pH 7.4): 2.89; (5)ACD/BCF (pH 5.5): 93.2; (6)ACD/BCF (pH 7.4): 93.2; (7)ACD/KOC (pH 5.5): 893.94; (8)ACD/KOC (pH 7.4): 893.94; (9)#H bond acceptors: 0; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 1 ; (12)Index of Refraction: 1.398; (13)Molar Refractivity: 25.27 cm3; (14)Molar Volume: 104.6 cm3; (15)Polarizability: 10.01×10-24cm3; (16)Surface Tension: 18.9 dyne/cm; (17)Density: 0.669 g/cm3; (18)Flash Point: °C; (19)Enthalpy of Vaporization: 27.06 kJ/mol; (20)Boiling Point: 37.5 °C at 760 mmHg; (21)Vapour Pressure: 485 mmHg at 25°C.

Production method of this chemical: The 2-Pentene, (2Z)- could be obtained by the reactant of . This reaction needs the reagent of hydrogen, the solvent of ethanol, and the catalyst of PdCu/SiO2. The yield is 99.5 %.

Uses of this chemical: The (2RS,3RS)-2,3-dibromo-pentane could be obtained by the reactant of 2-Pentene, (2Z)-. This reaction needs the reagent of bromine, and the solvent of CHCl3. The other condition is ambient temperature.

When you are using this chemical, please be cautious about it as the following: This chemical is irritating / harmful to eyes, respiratory system and skin. You should wear suitable protective clothing if you use it. In case of contacting with eyes, rinse immediately with plenty of water and seek medical advice. As it's flammable, keep it away from the sources of ignition.

You can still convert the following datas into molecular structure: 
1.SMILES: C(=C\CC)\C
2.InChI: InChI=1/C5H10/c1-3-5-4-2/h3,5H,4H2,1-2H3/b5-3-
3.InChIKey: QMMOXUPEWRXHJS-HYXAFXHYBR

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