{
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      "max_abserror_percentage": 16.01032229517174, 
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  "CAS": "107-46-0", 
  "CRITICAL": {
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    "p": 1939000.0, 
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    "rhomolar": 1589.825, 
    "rhomolar_units": "mol/m^3"
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  "ENVIRONMENTAL": {
    "ASHRAE34": "UNKNOWN", 
    "FH": 3, 
    "GWP100": -1.0, 
    "GWP20": -1.0, 
    "GWP500": -1.0, 
    "HH": 2, 
    "Name": "MM", 
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      "BibTeX_CP0": "", 
      "BibTeX_EOS": "Colonna-FPE-2006", 
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      "Ttriple_units": "K", 
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  "NAME": "MM", 
  "REFPROP_NAME": "MM"
}