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ChemSpider 2D Image | Bis(pinacolato)diboron | C12H24B2O4

Bis(pinacolato)diboron

  • Molecular FormulaC12H24B2O4
  • Average mass253.939 Da
  • Monoisotopic mass254.186066 Da
  • ChemSpider ID2015334

More details:



Featured data source



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

2,2'-Bi-1,3,2-dioxaborolane, 4,4,4',4',5,5,5',5'-octamethyl- [ACD/Index Name]
4,4,4',4',5,5,5',5'-Octamethyl-2,2'-bi-1,3,2-dioxaborolan [German] [ACD/IUPAC Name]
4,4,4',4',5,5,5',5'-Octamethyl-2,2'-bi-1,3,2-dioxaborolane [ACD/IUPAC Name]
4,4,4',4',5,5,5',5'-Octaméthyl-2,2'-bi-1,3,2-dioxaborolane [French] [ACD/IUPAC Name]
4,4,5,5-tetramethyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane
615-925-0 [EINECS]
73183-34-3 [RN]
Bis(pinacolato)diborane
Bis(pinacolato)diboron [Wiki]
More...

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

MFCD00799570 [DBID] [MDL number]
473294_ALDRICH [DBID]
CCRIS 4693 [DBID]
PubChem Substance ID 24891849 [DBID]
  • Experimental Physico-chemical Properties
  • Predicted Physico-chemical Properties
  • Miscellaneous
    • Safety:

      26-37/39-60 Alfa Aesar L16088
      26-37-60 Alfa Aesar L16088
      36/37/38 Alfa Aesar L16088
      H315-H319-H335 Alfa Aesar L16088
      IRRITANT Alfa Aesar L16088
      P261-P280-P305+P351+P338-P304+P340-P405-P501a Alfa Aesar L16088
      Warning Alfa Aesar L16088
    • Chemical Class:

      A 1,3,2-dioxaborolane that is 4,4,5,5-tetramethyl-1,3,2-dioxaborolane in which the boron hydrogen at position 2 is replaced by a 4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl group. It is a reagent used in organic synthesis to synthesise pinacol boronic esters. ChEBI CHEBI:183312

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

Density: 1.0±0.1 g/cm3
Boiling Point: 222.6±7.0 °C at 760 mmHg
Vapour Pressure: 0.2±0.4 mmHg at 25°C
Enthalpy of Vaporization: 44.0±3.0 kJ/mol
Flash Point: 88.4±18.2 °C
Index of Refraction: 1.432
Molar Refractivity: 67.5±0.4 cm3
#H bond acceptors: 4
#H bond donors: 0
#Freely Rotating Bonds: 1
#Rule of 5 Violations:
ACD/LogP:
ACD/LogD (pH 5.5):
ACD/BCF (pH 5.5):
ACD/KOC (pH 5.5):
ACD/LogD (pH 7.4):
ACD/BCF (pH 7.4):
ACD/KOC (pH 7.4):
Polar Surface Area: 37 Å2
Polarizability: 26.7±0.5 10-24cm3
Surface Tension: 25.9±5.0 dyne/cm
Molar Volume: 259.8±5.0 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) =  0.65

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  257.37  (Adapted Stein & Brown method)
    Melting Pt (deg C):  65.30  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.0126  (Modified Grain method)
    Subcooled liquid VP: 0.0301 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):  6248
       log Kow used: 0.65 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  7.4605e+005 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   Incomplete
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  6.738E-007 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Can Not Estimate (can not calculate HenryLC)

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :  -0.1091
   Biowin2 (Non-Linear Model)     :   0.0006
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   1.7895  (months      )
   Biowin4 (Primary Survey Model) :   2.8676  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2304
   Biowin6 (MITI Non-Linear Model):   0.0450
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -1.1374
 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):  4.01 Pa (0.0301 mm Hg)
  Log Koa (): not available
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  7.48E-007 
       Octanol/air (Koa) model:  not available
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  2.7E-005 
       Mackay model           :  5.98E-005 
       Octanol/air (Koa) model:  not available

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   3.8080 E-12 cm3/molecule-sec
      Half-Life =     2.809 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    33.706 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 4.34E-005 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  6.512E+004
      Log Koc:  4.814 

 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: 0.65 (estimated)

 Volatilization from Water:
    Henry LC:  6.74E-007 atm-m3/mole  (calculated from VP/WS)
    Half-Life from Model River:       1386  hours   (57.76 days)
    Half-Life from Model Lake : 1.526E+004  hours   (635.7 days)

 Removal In Wastewater Treatment:
    Total removal:               1.90  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.77  percent
    Total to Air:                0.04  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       2.02            67.4         1000       
   Water     52.4            1.44e+003    1000       
   Soil      45.5            2.88e+003    1000       
   Sediment  0.106           1.3e+004     0          
     Persistence Time: 771 hr




                    

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