Inherent Properties, Identifiers and References
ChemSpider ID: 1039
Empirical Formula: C2H6S
Molecular Weight: 62.134
Nominal Mass: 62 Da
Average Mass: 62.134 Da
Monoisotopic Mass: 62.01902 Da
Quick Links: Permalink Similar Isomers
Systematic Name: methylsulfanylmethane
SMILES: S(C)C
InChI: InChI=1/C2H6S/c1-3-2/h1-2H3
InChIKey: QMMFVYPAHWMCMS-UHFFFAOYAH
(Details...) Wikipedia Article(s)
Dimethyl sulfide (DMS) or methylthiomethane is an organosulfur compound with the formula (CH3)2S. Dimethyl sulfide is a water-insoluble flammable liquid that boils at 37°C and has a characteristic disagreeable odor. It is a component of the smell produced from cooking of certain vegetables, notably corn, cabbage, beetroot and seafoods. It is also an indication of bacterial infection in malt production and brewing. It is a breakdown product of dimethylsulfoniopropionate (DMSP), and is also produced by the bacterial metabolism of methanethiol. Read more... or Edit at Wikipedia...
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User Data

  • experimental physchem properties
    • Melting Point: -83
    • Melting Point: -98 C
    • Boiling Point: 38
    • Boiling Point: 37.3-37.5
    • Boiling Point: 38 C
    • Flash Point: -36 C
    • Specific Gravity: 0.845
    • Specific Gravity: 0.840-0.850
    • Refraction Index: 1.4351
    • Refraction Index: 1.423-1.441
  • miscellaneous
    • Appearance: colourless to pale yellow liquid with unpleasant odour of wild radish, cabbage
    • Appearance: liquid with an extremely unpleasant smell
    • Stability: Stable. Incompatible with strong oxidizing agents.Highly flammable - note low boiling point, low flash point,and wide explosion limits. Mixtures with air are potentially explosive.Incompatible with st rong oxidizing agents. Use in UK regulated by LPG Regulations1978 in accordance with HSE guidance note CS17.
    • Toxicity: ORL-RAT LD50 535 mg kg-1, ORL-MUS LD50 3700 mg kg-1
    • Safety: DANGER: FLAMMABLE, causes cyanosis, skin and eye irritation
    • Safety: Good ventilation, safety glasses. Remove all sources of ignitionfrom the working area. Use in a fume cupboard. DO NOT use in the open lab - thisproduces a long-lived and very unpleasant smell that lin gers!
Names and Synonyms

Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Redirected by Users, Redirect Approved by Experts

(Methylsu​lfanyl)me​thane

213-133-6 [EINECS/ELINCS]

926-09-0 [RN]

dimethyl ​sulfide

Thiobisme​thane

Thiobis-m​ethane

[SMe2]

2-Thiopro​pane

Dimethyl ​sulfoxide​(Reduced)

Dimethyls​ulfid [Czech]

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Database ID(s)

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(Details...) Predicted Properties
LogP: ACD/LogP: 0.89
XLogP: 1.30
ALOGPS: 0.59
# of Rule of 5 Violations: 0
ACD/LogD (pH 5.5): 0.89 ACD/LogD (pH 7.4): 0.89
ACD/BCF (pH 5.5): 2.78 ACD/BCF (pH 7.4): 2.78
ACD/KOC (pH 5.5): 72.39 ACD/KOC (pH 7.4): 72.39
#H bond acceptors: 0 #H bond donors: 0
#Freely Rotating Bonds: 0 Polar Surface Area: 25.3 Å2
Index of Refraction: 1.425 Molar Refractivity: 19.31 cm3
Molar Volume: 75.5 cm3 Polarizability: 7.65 10-24cm3
Surface Tension: 21.3 dyne/cm Density: 0.822 g/cm3
Flash Point: °C Enthalpy of Vaporization: 27 kJ/mol
Boiling Point: 29.5 °C at 760 mmHg Vapour Pressure: 647 mmHg at 25°C
            
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  0.92

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  42.52  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -107.65  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  479  (Mean VP of Antoine & Grain methods)
    MP  (exp database):  -98.3 deg C
    BP  (exp database):  37.3 deg C
    VP  (exp database):  5.02E+02 mm Hg at 25 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  2.249e+004
       log Kow used: 0.92 (estimated)
       no-melting pt equation used
     Water Sol (Exper. database match) =  2.2e+004 mg/L (25 deg C)
        Exper. Ref:  SUZUKI,T (1991)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  19986 mg/L
    Wat Sol (Exper. database match) =  22000.00
       Exper. Ref:  SUZUKI,T (1991)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   7.86E-004  atm-m3/mole
   Group Method:   1.90E-003  atm-m3/mole
   Exper Database: 1.61E-03  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  1.741E-003 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.92  (KowWin est)
  Log Kaw used:  -1.182  (exp database)
      Log Koa (KOAWIN v1.10 estimate):  2.102
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7180
   Biowin2 (Non-Linear Model)     :   0.8934
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.0619  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7581  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5281
   Biowin6 (MITI Non-Linear Model):   0.6837
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.6769
 Ready Biodegradability Prediction:   YES

 Hydrocarbon Biodegradation (BioHCwin v1.01):
     LOG BioHC Half-Life (days) :   0.3624
     BioHC Half-Life (days)     :   2.3036

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  6.69E+004 Pa (502 mm Hg)
  Log Koa (Koawin est  ): 2.102
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  4.48E-011 
       Octanol/air (Koa) model:  3.1E-011 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1.62E-009 
       Mackay model           :  3.59E-009 
       Octanol/air (Koa) model:  2.48E-009 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   3.8216 E-12 cm3/molecule-sec
      Half-Life =     2.799 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    33.586 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 2.6E-009 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  23.74
      Log Koc:  1.376 

 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: 0.92 (estimated)

 Volatilization from Water:
    Henry LC:  0.00161 atm-m3/mole  (Henry experimental database)
    Half-Life from Model River:      1.091  hours
    Half-Life from Model Lake :      77.99  hours   (3.25 days)

 Removal In Wastewater Treatment:
    Total removal:              40.59  percent
    Total biodegradation:        0.06  percent
    Total sludge adsorption:     1.19  percent
    Total to Air:               39.34  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       28.2            53.3         1000       
   Water     56.5            360          1000       
   Soil      15.1            720          1000       
   Sediment  0.112           3.24e+003    0          
     Persistence Time: 120 hr