ChemSpider 2D Image | GQ5425000 | C5H8O2

GQ5425000

  • Molecular FormulaC5H8O2
  • Average mass100.116 Da
  • Monoisotopic mass100.052429 Da
  • ChemSpider ID10468

More details:






Validated by Experts, Validated by Users, Non-Validated, Removed by Users

208-782-7 [EINECS]
2-Butenoic acid, 3-methyl- [ACD/Index Name]
3,3-Dimethylacrylic acid [ACD/IUPAC Name]
3-Methyl-2-butenoic acid [ACD/IUPAC Name]
3-Methyl-2-butensäure [German] [ACD/IUPAC Name]
3-Methylbut-2-enoic acid [ACD/IUPAC Name]
3-Methylcrotonate
541-47-9 [RN]
Acide 3-méthyl-2-buténoïque [French] [ACD/IUPAC Name]
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

EKV8I38F9I [DBID]
38880_FLUKA [DBID]
AE-848/32066036 [DBID]
AI3-23985 [DBID]
bmse000581 [DBID]
BRN 1720305 [DBID]
CCRIS 4693 [DBID]
CHEBI:37127 [DBID]
D138606_ALDRICH [DBID]
FEMA No. 3187 [DBID]
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  • Experimental Physico-chemical Properties
  • Predicted Physico-chemical Properties
  • Miscellaneous
    • Appearance:

      Solid; green, phenolic, dairy aroma Food and Agriculture Organization of the United Nations 3-Methyl-2-butenoic acid
      White Powder Novochemy [NC-29926]
    • Safety:

      20/21/36/37/39 Novochemy [NC-29926]
      20-26-36/37/39-45-60 Alfa Aesar A16865
      34 Alfa Aesar A16865
      36/37/38 Novochemy [NC-29926]
      8 Alfa Aesar A16865
      Corrosive SynQuest 2321-1-X4, 64470
      Danger Alfa Aesar A16865
      Danger Biosynth Q-200335
      DANGER: CORROSIVE, burns skin and eyes Alfa Aesar A16865
      GHS05; GHS07 Biosynth Q-200335
      GHS07; GHS09 Novochemy [NC-29926]
      H314 Alfa Aesar A16865
      H315; H318; H335 Biosynth Q-200335
      H332; H403 Novochemy [NC-29926]
      P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a Alfa Aesar A16865
      P261; P280; P305+P351+P338 Biosynth Q-200335
      P305+P351+P338; P376; P270 Novochemy [NC-29926]
      R52/53 Novochemy [NC-29926]
      Warning Novochemy [NC-29926]
    • Chemical Class:

      A methyl-branched fatty acid that is but-2-enoic acid bearing a methyl substituent at position 3. ChEBI CHEBI:37127
  • Gas Chromatography
    • Retention Index (Kovats):

      860 (estimated with error: 51) NIST Spectra mainlib_230321, replib_332791, replib_1105
    • Retention Index (Normal Alkane):

      1801 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 230 C; End time: 15 min; Start time: 2 min; CAS no: 541479; Active phase: CP Wax 52 CB; Carrier gas: Helium; Phase thickness: 0.50 um; Data type: Normal alkane RI; Authors: Birtic, S.; Ginies, C.; Causse, M.; Renard, C.M.G.C.; Page, D., Changes in volatiles and glycosides during fruit maturartion of two contrasted tomato (Solanum lycopersicum) lines, J. Agric. Food Chem., 57(2), 2009, 591-598.) NIST Spectra nist ri
      1819 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 210 C; End time: 70 min; Start time: 5 min; CAS no: 541479; Active phase: DB-Wax; Carrier gas: Helium; Phase thickness: 0.50 um; Data type: Normal alkane RI; Authors: Moon, J.-K.; Shibamoto, T., Role of roasting conditions in the profile of volatile flavor chemicals formed from coffee beans, J. Agric. Food Chem., 57(13), 2009, 5823-5831.) NIST Spectra nist ri
      1776 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; CAS no: 541479; Active phase: DB-Wax; Carrier gas: Hydrogen; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Gonzalez-Rios, O.; Suarez-Quiroz, M.L.; Boulanger, R.; Barel, M.; Guyot, B.; Guiraud, J.-P.; Schorr-Galindo, S., Impact of "ecological" post-harvest processing of coffee aroma: II Roasted coffee., J. Food Composition & Analysis, 20, 2007, 297-307.) NIST Spectra nist ri
      1802 (Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 44 0C ^ 3 0C/min -> 170 0C ^ 8 0C/min -> 250 0C; CAS no: 541479; Active phase: DB-Wax; Carrier gas: Hydrogen; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Gonzalez-Rios, O.; Suarez-Quiroz, M.L.; Boulanger, R.; Barel, M.; Guyot, B.; Guiraud, J.-P.; Schorr-Galindo, S., Impact of "ecological" post-harvest processing of coffee aroma: II Roasted coffee., J. Food Composition & Analysis, 20, 2007, 297-307.) NIST Spectra nist ri
      1780 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 15 m; Column type: Capillary; Heat rate: 10 K/min; Start T: 45 C; End T: 210 C; End time: 5 min; Start time: 5 min; CAS no: 541479; Active phase: HP-Innowax; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Wijaya, C.H.; Ulrich, D.; Lestari, R.; Schippel, K.; Ebert, G., Identification of potent odorants in different cultivars of snake fruit [Salacca zalacca (Gaert.) Voss] using gas chromatography-olfactometry, J. Agric. Food Chem., 53, 2005, 1637-1641.) NIST Spectra nist ri
      1793 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 40 C; End T: 230 C; End time: 10 min; Start time: 10 min; CAS no: 541479; Active phase: TC-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Suhardi, S.; Suzuki, M.; Yoshida, K.; Muto, T.; Fujita, A.; Watanbe, N., Changes in the volatile compounds and in the chemical and physical properties of snake fruit (Salacca edulis Reinw) Cv. Pondoh during maturation, J. Agric. Food Chem., 50, 2002, 7627-7633.) NIST Spectra nist ri
      1776.6 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; Heat rate: 8 K/min; Start T: 60 C; End T: 220 C; CAS no: 541479; Active phase: Carbowax 20M; Carrier gas: He; Data type: Normal alkane RI; Authors: Riganakos, K.A.; Koller, W.D.; Ehlermann, D.A.E.; Bauer, B.; Kontominas, M.G., Effects of ionizing radiation on properties of monolayer and multilayer flexible food packaging materials, Radiat. Phys. Chem., 54, 1999, 527-540.) NIST Spectra nist ri
      1784.8 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; Heat rate: 8 K/min; Start T: 60 C; End T: 220 C; CAS no: 541479; Active phase: Carbowax 20M; Carrier gas: He; Data type: Normal alkane RI; Authors: Riganakos, K.A.; Koller, W.D.; Ehlermann, D.A.E.; Bauer, B.; Kontominas, M.G., Effects of ionizing radiation on properties of monolayer and multilayer flexible food packaging materials, Radiat. Phys. Chem., 54, 1999, 527-540.) NIST Spectra nist ri
      1753 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 60 C; End T: 180 C; Start time: 4 min; CAS no: 541479; Active phase: Carbowax 20M; Carrier gas: He; Data type: Normal alkane RI; Authors: Kawakami, M.; Kobayashi, A., Volatitle constituents of greem mate and roasted mate, J. Agric. Food Chem., 39(7), 1991, 1275-1279.) NIST Spectra nist ri
      1774 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.28 mm; Column length: 50 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 60 C; End T: 240 C; Start time: 5 min; CAS no: 541479; Active phase: FFAP; Carrier gas: He; Data type: Normal alkane RI; Authors: Vernin, G.; Metzger, J.; Obretenov, T.; Suon, K.-N.; Fraisse, D., GC/MS (EI,PCI,SIM)-data bank analysis of volatile compounds arising from thermal degradation of glucose-valine amadori intermediates, in Flavors and Fragrances: A World Perspective. Proceedings of the 10th International Congress of Essential Oils, Fragrances and Flavors, Lawrence,B.M.; Mookherjee,B.D.; Willis,B.J., ed(s), Elsevier, New York, 1988, 999-1028.) NIST Spectra nist ri
    • Retention Index (Linear):

      1027 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.2 mm; Column length: 25 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 70 C; End T: 200 C; End time: 10 min; Start time: 2 min; CAS no: 541479; Active phase: HP-101; Carrier gas: He; Phase thickness: 0.2 um; Data type: Linear RI; Authors: Milos, M.; Radonic, A., Gas chromatography mass spectral analysis of free and glycosidically bound volatile compounds from Juniperus oxycedrus L. growing wild in Croatia, Food Chem., 68, 2000, 333-338.) NIST Spectra nist ri
      953 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: Multi-step temperature program; T(initial)=60C; T(final)=270C; CAS no: 541479; Active phase: VF-5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Tret'yakov, K.V., Retention Data. NIST Mass Spectrometry Data Center., 2007.) NIST Spectra nist ri
      1776 (Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 20C(30s) =>fast=>60C =>4C/min => 220C (20min); CAS no: 541479; Active phase: DB-Wax; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Cantergiani, E.; Brevard, H.; Krebs, Y.; Feria-Morales, A.; Amado, R.; Yeretzian, C., Characterisation of the aroma of green Mexican coffee and identification of mouldy/earthy defect, Eur. Food Res. Technol., 212, 2001, 648-657.) NIST Spectra nist ri
      1730 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.2 mm; Column length: 50 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 70 C; End T: 180 C; End time: 10 min; Start time: 4 min; CAS no: 541479; Active phase: HP-20M; Carrier gas: He; Phase thickness: 0.2 um; Data type: Linear RI; Authors: Milos, M.; Radonic, A., Gas chromatography mass spectral analysis of free and glycosidically bound volatile compounds from Juniperus oxycedrus L. growing wild in Croatia, Food Chem., 68, 2000, 333-338.) NIST Spectra nist ri

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module

Density: 1.0±0.1 g/cm3
Boiling Point: 194.5±0.0 °C at 760 mmHg
Vapour Pressure: 0.2±0.7 mmHg at 25°C
Enthalpy of Vaporization: 47.5±6.0 kJ/mol
Flash Point: 95.9±9.6 °C
Index of Refraction: 1.451
Molar Refractivity: 26.7±0.3 cm3
#H bond acceptors: 2
#H bond donors: 1
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: 1.35
ACD/LogD (pH 5.5): 0.64
ACD/BCF (pH 5.5): 1.39
ACD/KOC (pH 5.5): 32.27
ACD/LogD (pH 7.4): -1.07
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 1.00
Polar Surface Area: 37 Å2
Polarizability: 10.6±0.5 10-24cm3
Surface Tension: 32.3±3.0 dyne/cm
Molar Volume: 99.1±3.0 cm3

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  1.40

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  188.47  (Adapted Stein & Brown method)
    Melting Pt (deg C):  5.45  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.146  (Modified Grain method)
    MP  (exp database):  69.5 deg C
    BP  (exp database):  197 deg C
    Subcooled liquid VP: 0.383 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  1.845e+004
       log Kow used: 1.40 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  22010 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Neutral Organics-acid

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   7.09E-007  atm-m3/mole
   Group Method:   1.69E-007  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  1.042E-006 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.40  (KowWin est)
  Log Kaw used:  -4.538  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  5.938
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7726
   Biowin2 (Non-Linear Model)     :   0.9029
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.3425  (days-weeks  )
   Biowin4 (Primary Survey Model) :   4.0889  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.6025
   Biowin6 (MITI Non-Linear Model):   0.6979
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.7902
 Ready Biodegradability Prediction:   YES

Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  51.1 Pa (0.383 mm Hg)
  Log Koa (Koawin est  ): 5.938
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  5.87E-008 
       Octanol/air (Koa) model:  2.13E-007 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  2.12E-006 
       Mackay model           :  4.7E-006 
       Octanol/air (Koa) model:  1.7E-005 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  31.2070 E-12 cm3/molecule-sec
      Half-Life =     0.343 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     4.113 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     7.393750 E-17 cm3/molecule-sec
      Half-Life =     0.155 Days (at 7E11 mol/cm3)
      Half-Life =      3.720 Hrs
   Fraction sorbed to airborne particulates (phi): 3.41E-006 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  3.423
      Log Koc:  0.534 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
    Rate constants can NOT be estimated for this structure!

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 0.500 (BCF = 3.162)
       log Kow used: 1.40 (estimated)

 Volatilization from Water:
    Henry LC:  1.69E-007 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:       3467  hours   (144.5 days)
    Half-Life from Model Lake : 3.791E+004  hours   (1580 days)

 Removal In Wastewater Treatment:
    Total removal:               1.96  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.85  percent
    Total to Air:                0.01  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.456           2.56         1000       
   Water     37              208          1000       
   Soil      62.5            416          1000       
   Sediment  0.0782          1.87e+003    0          
     Persistence Time: 255 hr




                    

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