ChemSpider 2D Image | 7-Nitro-2,1,3-benzoxadiazol-4-ol | C6H3N3O4

7-Nitro-2,1,3-benzoxadiazol-4-ol

  • Molecular FormulaC6H3N3O4
  • Average mass181.106 Da
  • Monoisotopic mass181.012360 Da
  • ChemSpider ID11646338

More details:

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

2,1,3-Benzoxadiazol-4-ol, 7-nitro- [ACD/Index Name]
7-Nitro-2,1,3-benzoxadiazol-4-ol [German] [ACD/IUPAC Name]
7-Nitro-2,1,3-benzoxadiazol-4-ol [ACD/IUPAC Name]
7-Nitro-2,1,3-benzoxadiazol-4-ol [French] [ACD/IUPAC Name]
22250-54-0 [RN]
7-hydroxy-4-nitrobenzofurazan
7-Nitrobenzo[c][1,2,5]oxadiazol-4-ol
MFCD18451287

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, version: 14.00

Density: 1.8±0.1 g/cm3
Boiling Point: 414.6±55.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.0 mmHg at 25°C
Enthalpy of Vaporization: 69.4±3.0 kJ/mol
Flash Point: 204.6±31.5 °C
Index of Refraction: 1.727
Molar Refractivity: 41.0±0.3 cm3
#H bond acceptors: 7
#H bond donors: 1
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: 1.04
ACD/LogD (pH 5.5): -1.02
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 1.00
ACD/LogD (pH 7.4): -1.90
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 1.00
Polar Surface Area: 105 Å2
Polarizability: 16.3±0.5 10-24cm3
Surface Tension: 97.5±3.0 dyne/cm
Molar Volume: 103.1±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) =  1.81

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  338.44  (Adapted Stein & Brown method)
    Melting Pt (deg C):  137.13  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  5.18E-006  (Modified Grain method)
    Subcooled liquid VP: 6.97E-005 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):  5844
       log Kow used: 1.81 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  3.6447e+005 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   7.58E-012  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.112E-010 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.81  (KowWin est)
  Log Kaw used:  -9.509  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  11.319
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.4721
   Biowin2 (Non-Linear Model)     :   0.2381
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.6857  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.5178  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.0664
   Biowin6 (MITI Non-Linear Model):   0.0124
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.5119
 Ready Biodegradability Prediction:   NO

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

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  0.00929 Pa (6.97E-005 mm Hg)
  Log Koa (Koawin est  ): 11.319
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.000323 
       Octanol/air (Koa) model:  0.0512 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.0115 
       Mackay model           :  0.0252 
       Octanol/air (Koa) model:  0.804 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   3.3662 E-12 cm3/molecule-sec
      Half-Life =     3.177 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    38.129 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 0.0184 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  210.2
      Log Koc:  2.323 

 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 = 0.696 (BCF = 4.97)
       log Kow used: 1.81 (estimated)

 Volatilization from Water:
    Henry LC:  7.58E-012 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 1.039E+008  hours   (4.331E+006 days)
    Half-Life from Model Lake : 1.134E+009  hours   (4.725E+007 days)

 Removal In Wastewater Treatment:
    Total removal:               2.10  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     2.01  percent
    Total to Air:                0.00  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       7.91e-005       76.2         1000       
   Water     26.7            900          1000       
   Soil      73.2            1.8e+003     1000       
   Sediment  0.0845          8.1e+003     0          
     Persistence Time: 1.33e+003 hr

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