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1,1,3,3-Tetramethyl-1,3-disiloxanediyl

ChemSpider ID: 4885973
Molecular Formula: C₄H₁₂OSi₂
Monoisotopic mass: 132.042664 Da
Systematic name

1,1,3,3-Tetramethyl-1,3-disiloxanediyl
SMILES and InChIs

SMILES:

C[Si](C)O[Si](C)C Copied

Std. InChI:

InChI=1S/C4H12OSi2/c1-6(2)5-7(3)4/h1-4H3 Copied

Std. InChIKey:

KWEKXPWNFQBJAY-UHFFFAOYSA-N Copied

Names and Identifiers

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Data supplied by datasources and users.

identifiers
- SMILES: C[Si](C)O[Si](C)C

Predicted data is generated using the ACD/Labs’ ACD/PhysChem Suite, for more information see their website.

ACD/LogP:		# of Rule of 5 Violations:
ACD/LogD (pH 5.5):		ACD/LogD (pH 7.4):
ACD/BCF (pH 5.5):		ACD/BCF (pH 7.4):
ACD/KOC (pH 5.5):		ACD/KOC (pH 7.4):
#H bond acceptors:		#H bond donors:
#Freely Rotating Bonds:		Polar Surface Area:	Å²
Index of Refraction:		Molar Refractivity:	cm³
Molar Volume:	cm³	Polarizability:	10^-24cm³
Surface Tension:	dyne/cm	Density:	g/cm³
Flash Point:	°C	Enthalpy of Vaporization:	kJ/mol
Boiling Point:	°C at 760 mmHg	Vapour Pressure:	mmHg at 25°C

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™, for more information see their website.

                    
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  3.67

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  98.47  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -110.63  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  40  (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  10.88
       log Kow used: 3.67 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  4.9238 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.60E-001  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  6.498E-001 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.67  (KowWin est)
  Log Kaw used:  0.816  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  2.854
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6836
   Biowin2 (Non-Linear Model)     :   0.7505
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9023  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6539  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3142
   Biowin6 (MITI Non-Linear Model):   0.2185
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.5178
 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):  5.08E+003 Pa (38.1 mm Hg)
  Log Koa (Koawin est  ): 2.854
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  5.91E-010 
       Octanol/air (Koa) model:  1.75E-010 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  2.13E-008 
       Mackay model           :  4.72E-008 
       Octanol/air (Koa) model:  1.4E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   0.5984 E-12 cm3/molecule-sec
      Half-Life =    17.874 Days (12-hr day; 1.5E6 OH/cm3)
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 3.43E-008 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  193
      Log Koc:  2.286 

 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 = 2.124 (BCF = 133)
       log Kow used: 3.67 (estimated)

 Volatilization from Water:
    Henry LC:  0.16 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      1.187  hours
    Half-Life from Model Lake :      110.1  hours   (4.589 days)

 Removal In Wastewater Treatment (recommended maximum 95%):
    Total removal:              98.52  percent
    Total biodegradation:        0.05  percent
    Total sludge adsorption:     9.69  percent
    Total to Air:               88.78  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       43.8            429          1000       
   Water     39.2            360          1000       
   Soil      14.6            720          1000       
   Sediment  2.47            3.24e+003    0          
     Persistence Time: 157 hr

Patents	Personal Collections
Publication or Magazine Article	Web-based Article (blog or commentary)
Available Chemicals Databases	Biological Properties
Chemical Reactions	Chemical Safety Data
Drugs or Compounds in Development	Imaging Agents
Information Aggregators	Journal Publishers via MeSH
Ligand/binding/crystal Structure Databases	Metabolic Pathways
Molecular Libraries Screening Center Network	Natural Products
NIH Substance Repository	Physical Properties (including SAR/QSAR databases)
Protein 3D Structures	Spectroscopy Databases
Substance Vendors	Theoretical Properties
Toxicology/Environmental Databases	Virtual Library

Category	Target	PDB Code	LASSO Score
Metalloenzymes	ADA, adenosine deaminase	1stw	0.96
Nuclear Hormone Receptors	MR, mineralocorticoid receptor	2aa2	0.88
Nuclear Hormone Receptors	AR, androgen receptor	1xq2	0.42
Nuclear Hormone Receptors	ER, estrogen receptor; agonist	1l2i	0.40
Nuclear Hormone Receptors	PR, progesterone receptor	1sr7	0.27
Nuclear Hormone Receptors	GR, glucocorticoid receptor	1m2z	0.10
Metalloenzymes	ACE, angiotensin-converting enzyme	1o86	0.03
Nuclear Hormone Receptors	PPARg, peroxisome proliferator activated receptor	1fm9	0.03
Nuclear Hormone Receptors	RXRa, retinoic X receptor R	1mvc	0.02
Other Enzymes	HIVPR, HIV protease	1hpx	0.02
Kinases	SRC, tyrosine kinase SRC	2src	0.01
Other Enzymes	HMGR, hydroxymethylglutaryl-CoA reductase	1hw8	0.01
Serine Proteases	Thrombin	1ba8	0.01
Metalloenzymes	PDE5, phosphodiesterase 5	1xp0	0.01
Other Enzymes	SAHH, S-adenosyl-homocysteine hydrolase	1a7a	0.01
Other Enzymes	PARP, poly(ADP-ribose) polymerase	1efy	0.01
Other Enzymes	PNP, purine nucleoside phosphorylase	1b8o	0.00
Other Enzymes	AmpC, AmpC beta-lactamase	1xgj	0.00
Other Enzymes	HIVRT, HIV reverse transcriptase	1rt1	0.00
Folate Enzymes	DHFR, dihydrofolate reductase	3dfr	0.00
Kinases	VEGFr2, vascular endothelial growth factor receptor	1vr2	0.00
Serine Proteases	Trypsin	1bju	0.00
Other Enzymes	GPB, glycogen phosphorylase	1a8i	0.00
Kinases	FGFr1, fibroblast growth factor receptor kinase	1agw	0.00
Other Enzymes	COX-1, cyclooxygenase-1	1p4g	0.00
Other Enzymes	COX-2, cyclooxygenase-2	1cx2	0.00
Kinases	CDK2, cyclindependent kinase 2	1ckp	0.00
Other Enzymes	ALR2, aldose reductase	1ah3	0.00
Metalloenzymes	COMT, catechol O-methyltransferase	1h1d	0.00
Folate Enzymes	GART, glycinamide ribonucleotide transformylase	1c2t	0.00
Kinases	P38 MAP, P38 mitogen activated protein	1kv2	0.00
Kinases	TK, thymidine kinase	1kim	0.00
Kinases	PDGFrb, platelet derived growth factor receptor kinase	N/A	0.00
Nuclear Hormone Receptors	ER, estrogen receptor; antagonist	3ert	0.00
Other Enzymes	AChE, acetylcholinesterase	1eve	0.00
Other Enzymes	NA, neuraminidase	1a4g	0.00
Kinases	HSP90, human heat shock protein 90	1uy6	0.00
Other Enzymes	InhA, enoyl ACP reductase	1p44	0.00
Kinases	EGFr, epidermal growth factor receptor	1m17	0.00
Serine Proteases	FXa, factor Xa	1f0r	0.00

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1,1,3,3-Tetramethyl-1,3-disiloxanediyl

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1,1,3,3-Tetramethyl-1,3-disiloxanediyl

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