InChI=1/C11H14O3/c1-2-3-8-14-11(13)9-4-6-10(12)7-5-9/h4-7,12H,2-3,8H2,1H3

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Search term: QFOHBWFCKVYLES-UHFFFAOYAN
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Inherent Properties, Identifiers and References

ChemSpider ID:	6916
Empirical Formula:	C₁₁H₁₄O₃
Molecular Weight:	194.2271
Nominal Mass:	194 Da
Average Mass:	194.2271 Da
Monoisotopic Mass:	194.094294 Da

Systematic Name:

butyl 4-hydroxybenzoate

SMILES:

O=C(OCCCC)c1ccc(O)cc1

InChI:

InChI=1/C11H14O3/c1-2-3-8-14-11(13)9-4-6-10(12)7-5-9/h4-7,12H,2-3,8H2,1H3

InChIKey:

QFOHBWFCKVYLES-UHFFFAOYAN

Std. InChI:

InChI=1S/C11H14O3/c1-2-3-8-14-11(13)9-4-6-10(12)7-5-9/h4-7,12H,2-3,8H2,1H3

Std. InChIKey:

QFOHBWFCKVYLES-UHFFFAOYSA-N

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Wikipedia Article(s)

Butylparaben, also butyl paraben, one of the parabens, has formula C₄H₉(C₆H₄(OH)COO). It is the butyl ester of p-hydroxybenzoic acid and is used as an antifungal preservative in cosmetics. It is also a component of many medications in the form of suspension fluid. Read more... or Edit at Wikipedia...

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Supplemental Information

Links & References

Igor V. Tetko, Vsevolod Yu. Tanchuk, Tamara N. Kasheva, and Alessandro E. P. Villa. Estimation of Aqueous Solubility of Chemical Compounds Using E-State Indices, J. Chem. Inf. Comput. Sci., 2001, 41 (6), pp 1488–1493

[DOI: 10.1021/ci000392t]

The molecular weight and electrotopological E-state indices were used to estimate by Artificial Neural Networks aqueous solubility for a diverse set of 1291 organic compounds. The neural network with 33-4-1 neurons provided highly predictive results with r2 = 0.91 and RMS = 0.62.

E. L. Willighagen, H. M. G. W. Denissen, R. Wehrens, and L. M. C. Buydens. On the Use of 1H and 13C 1D NMR Spectra as QSPR Descriptors, J. Chem. Inf. Model., 46 (2), 487-494, 2006

[PubMed: 16562976] [DOI: 10.1021/ci050282s]

User Data

experimental physchem properties

Melting Point: 67-69

The melting point of a crystalline solid is the temperature range at which it changes state from solid to liquid. See also: Melting Point

Boiling Point: 156-157 (3.5 mm Hg)

The boiling point of a liquid is the temperature at which the vapor pressure of the liquid equals the environmental pressure surrounding the liquid. See also: Boiling Point

Solubility: -2.72

No description available

miscellaneous

Appearance: white crystals with little or no odour

Visual appearance of the given substance.

Safety: WARNING: Irritates lungs, eyes, skin

See Chemical Safety

Names and Synonyms

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

4-Hydroxybenzoate de butyle

benzoic acid, 4-hydroxy-, butyl ester

Butyl 4-hydroxybenzoate

Butyl-4-hydroxybenzoat

Mekkings B

n-Butyl 4-Hydroxybenzoate

n-Butylparaben

202-318-7 [EINECS/ELINCS]

4-(butoxycarbonyl)phenol

4-10-00-00375

More...

Database ID(s)

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

ACD/Labs Predicted Properties

ACD/LogP:	3.46	# of Rule of 5 Violations:	0
ACD/LogD (pH 5.5):	3.46	ACD/LogD (pH 7.4):	3.4
ACD/BCF (pH 5.5):	249.85	ACD/BCF (pH 7.4):	217.35
ACD/KOC (pH 5.5):	1809.78	ACD/KOC (pH 7.4):	1574.37
#H bond acceptors:	3	#H bond donors:	1
#Freely Rotating Bonds:	6	Polar Surface Area:	35.53 Å²
Index of Refraction:	1.526	Molar Refractivity:	53.8 cm³
Molar Volume:	175.2 cm³	Polarizability:	21.33 10^-24cm³
Surface Tension:	42.1 dyne/cm	Density:	1.108 g/cm³
Flash Point:	129.2 °C	Enthalpy of Vaporization:	57.19 kJ/mol
Boiling Point:	309.2 °C at 760 mmHg	Vapour Pressure:	0.000356 mmHg at 25°C

MeSH

EPI Summary

            
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  3.47
    Log Kow (Exper. database match) =  3.57
       Exper. Ref:  Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  300.26  (Adapted Stein & Brown method)
    Melting Pt (deg C):  81.45  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.000251  (Modified Grain method)
    MP  (exp database):  68.5 deg C
    Subcooled liquid VP: 0.000645 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):  159
       log Kow used: 3.57 (expkow database)
       no-melting pt equation used
     Water Sol (Exper. database match) =  207 mg/L (20 deg C)
        Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  132.87 mg/L
    Wat Sol (Exper. database match) =  207.00
       Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   8.45E-009  atm-m3/mole
   Group Method:   6.00E-009  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  4.034E-007 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.57  (exp database)
  Log Kaw used:  -6.462  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  10.032
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.0535
   Biowin2 (Non-Linear Model)     :   0.9992
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.2649  (days-weeks  )
   Biowin4 (Primary Survey Model) :   4.1052  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.7238
   Biowin6 (MITI Non-Linear Model):   0.8377
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.3876
 Ready Biodegradability Prediction:   YES

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

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  0.086 Pa (0.000645 mm Hg)
  Log Koa (Koawin est  ): 10.032
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  3.49E-005 
       Octanol/air (Koa) model:  0.00264 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.00126 
       Mackay model           :  0.00278 
       Octanol/air (Koa) model:  0.175 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  15.4808 E-12 cm3/molecule-sec
      Half-Life =     0.691 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     8.291 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 0.00202 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  787.8
      Log Koc:  2.896 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
  Total Kb for pH > 8 at 25 deg C :  5.102E-003  L/mol-sec
  Kb Half-Life at pH 8:       4.305  years  
  Kb Half-Life at pH 7:      43.052  years  

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 2.049 (BCF = 111.9)
       log Kow used: 3.57 (expkow database)

 Volatilization from Water:
    Henry LC:  6E-009 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:  1.36E+005  hours   (5666 days)
    Half-Life from Model Lake : 1.484E+006  hours   (6.182E+004 days)

 Removal In Wastewater Treatment:
    Total removal:              14.72  percent
    Total biodegradation:        0.20  percent
    Total sludge adsorption:    14.53  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       0.161           16.6         1000       
   Water     18.8            208          1000       
   Soil      80.3            416          1000       
   Sediment  0.649           1.87e+003    0          
     Persistence Time: 446 hr

SimBioSys LASSO

Descriptors: 0, 0, 0, 0, 0, 0, 0, 2, 1, 0, 1, 2, 7, 4, 2, 0, 6, 2, 1, 0, 0, 0, 0, 0

Category	Target	PDB Code	LASSO Score
Other Enzymes	AChE, acetylcholinesterase	1eve	0.03
Nuclear Hormone Receptors	PPARg, peroxisome proliferator activated receptor	1fm9	0.03
Kinases	SRC, tyrosine kinase SRC	2src	0.01
Other Enzymes	HMGR, hydroxymethylglutaryl-CoA reductase	1hw8	0.01
Other Enzymes	HIVPR, HIV protease	1hpx	0.01
Nuclear Hormone Receptors	MR, mineralocorticoid receptor	2aa2	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
Metalloenzymes	ACE, angiotensin-converting enzyme	1o86	0.00
Serine Proteases	Thrombin	1ba8	0.00
Nuclear Hormone Receptors	ER, estrogen receptor; agonist	1l2i	0.00
Nuclear Hormone Receptors	PR, progesterone receptor	1sr7	0.00
Folate Enzymes	DHFR, dihydrofolate reductase	3dfr	0.00
Serine Proteases	FXa, factor Xa	1f0r	0.00
Kinases	VEGFr2, vascular endothelial growth factor receptor	1vr2	0.00
Other Enzymes	GPB, glycogen phosphorylase	1a8i	0.00
Other Enzymes	SAHH, S-adenosyl-homocysteine hydrolase	1a7a	0.00
Kinases	FGFr1, fibroblast growth factor receptor kinase	1agw	0.00
Kinases	TK, thymidine kinase	1kim	0.00
Metalloenzymes	COMT, catechol O-methyltransferase	1h1d	0.00
Other Enzymes	ALR2, aldose reductase	1ah3	0.00
Other Enzymes	NA, neuraminidase	1a4g	0.00
Metalloenzymes	ADA, adenosine deaminase	1stw	0.00
Kinases	P38 MAP, P38 mitogen activated protein	1kv2	0.00
Nuclear Hormone Receptors	RXRa, retinoic X receptor R	1mvc	0.00
Nuclear Hormone Receptors	AR, androgen receptor	1xq2	0.00
Folate Enzymes	GART, glycinamide ribonucleotide transformylase	1c2t	0.00
Kinases	PDGFrb, platelet derived growth factor receptor kinase	N/A	0.00
Kinases	HSP90, human heat shock protein 90	1uy6	0.00
Other Enzymes	HIVRT, HIV reverse transcriptase	1rt1	0.00
Kinases	EGFr, epidermal growth factor receptor	1m17	0.00
Kinases	CDK2, cyclindependent kinase 2	1ckp	0.00
Other Enzymes	COX-2, cyclooxygenase-2	1cx2	0.00