InChI=1/C8H11NO/c9-6-5-7-1-3-8(10)4-2-7/h1-4,10H,5-6,9H2

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Search term: tyramine
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Inherent Properties, Identifiers and References

ChemSpider ID:	5408
Empirical Formula:	C₈H₁₁NO
Molecular Weight:	137.179
Nominal Mass:	137 Da
Average Mass:	137.179 Da
Monoisotopic Mass:	137.084064 Da

Systematic Name:

4-(2-aminoethyl)phenol

SMILES:

Oc1ccc(cc1)CCN

InChI:

InChI=1/C8H11NO/c9-6-5-7-1-3-8(10)4-2-7/h1-4,10H,5-6,9H2

InChIKey:

DZGWFCGJZKJUFP-UHFFFAOYAB

Std. InChI:

InChI=1S/C8H11NO/c9-6-5-7-1-3-8(10)4-2-7/h1-4,10H,5-6,9H2

Std. InChIKey:

DZGWFCGJZKJUFP-UHFFFAOYSA-N

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Wikipedia Article(s)

Tyramine (4-Hydroxyphenethylamine; para-Tyramine; Mydrial, Uteramin) is a naturally-occurring monoamine compound and trace amine derived from the amino acid tyrosine. Tyramine acts as a catecholamine (dopamine, norepinephrine (noradrenaline), epinephrine (adrenaline)) releasing agent. Notably, however, it is unable to cross the blood-brain-barrier (BBB), resulting in only non-psychoactive peripheral sympathomimetic effects. When ingested unintentionally from certain foods in conjunction with a monoamine oxidase inhibitor (MAOI), tyramine is responsible for the so-called "cheese effect" often seen with their use. Read more... or Edit at Wikipedia...

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Links & References

Jonathan Burns, Donald F. Weaver. A Mathematical Model for Prediction of Drug Molecule Diffusion across the Blood-Brain Barrier, Can. J. Neurol. Sci. 2004, 31, 520-527.

This URL links to the dataset on QSAR world Compounds and their property with respect to crossing of the "Blood-Brain Barrier" (BBB) have been given in the paper. In all 80 compounds with their BBB permabilty have been given in the files provided here. 45 "Cross" the BBB while 35 "Do Not Cross" the BBB

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.

User Data

miscellaneous

Appearance: Colourless to yellow solid; Sweet meaty aroma

Visual appearance of the given substance.

Source: widespread in plants

No description available

Drug Status: experimental

No description available

Therapeutic Effect: adrenergic agonist

No description available

Names and Synonyms

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

.alpha.-(4-Hydroxyphenyl)-.beta.-aminoethane

.beta.-(4-Hydroxyphenyl)ethylamine

2-p-Hydroxyphenylethylamine

4- (2-aminoethyl)-Phenol

4-(2-Aminoéthyl)phénol

4-Hydroxy-.beta.-phenylethylamine

4-hydroxy-Benzeneethanamine

4-Hydroxy-beta-phenylethylamine

4-hydroxy-phenethylamine

51-67-2 [RN]

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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:	0.72	# of Rule of 5 Violations:	0
ACD/LogD (pH 5.5):	-2.36	ACD/LogD (pH 7.4):	-1.82
ACD/BCF (pH 5.5):	1	ACD/BCF (pH 7.4):	1
ACD/KOC (pH 5.5):	1	ACD/KOC (pH 7.4):	1
#H bond acceptors:	2	#H bond donors:	3
#Freely Rotating Bonds:	4	Polar Surface Area:	12.47 Å²
Index of Refraction:	1.577	Molar Refractivity:	41.21 cm³
Molar Volume:	124.3 cm³	Polarizability:	16.34 10^-24cm³
Surface Tension:	48.3 dyne/cm	Density:	1.103 g/cm³
Flash Point:	119.2 °C	Enthalpy of Vaporization:	58.99 kJ/mol
Boiling Point:	325.2 °C at 760 mmHg	Vapour Pressure:	0.000123 mmHg at 25°C

MeSH

EPI Summary

            
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  0.86

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  258.99  (Adapted Stein & Brown method)
    Melting Pt (deg C):  60.21  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.000247  (Modified Grain method)
    MP  (exp database):  164.5 deg C
    BP  (exp database):  205-207 @ 25 mm Hg deg C
    Subcooled liquid VP: 0.00673 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):  6.169e+005
       log Kow used: 0.86 (estimated)
       no-melting pt equation used
     Water Sol (Exper. database match) =  1.04e+004 mg/L (15 deg C)
        Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  3.2548e+005 mg/L
    Wat Sol (Exper. database match) =  10400.00
       Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   8.45E-011  atm-m3/mole
   Group Method:   2.23E-011  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  7.227E-011 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.86  (KowWin est)
  Log Kaw used:  -8.462  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  9.322
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.0065
   Biowin2 (Non-Linear Model)     :   0.9748
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9020  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6643  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4281
   Biowin6 (MITI Non-Linear Model):   0.3905
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.6166
 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):  0.897 Pa (0.00673 mm Hg)
  Log Koa (Koawin est  ): 9.322
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  3.34E-006 
       Octanol/air (Koa) model:  0.000515 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.000121 
       Mackay model           :  0.000267 
       Octanol/air (Koa) model:  0.0396 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  73.5760 E-12 cm3/molecule-sec
      Half-Life =     0.145 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.744 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 0.000194 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1162
      Log Koc:  3.065 

 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: 0.86 (estimated)

 Volatilization from Water:
    Henry LC:  2.23E-011 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River: 3.075E+007  hours   (1.281E+006 days)
    Half-Life from Model Lake : 3.355E+008  hours   (1.398E+007 days)

 Removal In Wastewater Treatment:
    Total removal:               1.88  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.78  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       0.000506        3.49         1000       
   Water     35.6            360          1000       
   Soil      64.3            720          1000       
   Sediment  0.0697          3.24e+003    0          
     Persistence Time: 602 hr

SimBioSys LASSO

Descriptors: 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 1, 2, 2, 4, 2, 0, 6, 0, 0, 0, 0, 0, 0, 0

Category	Target	PDB Code	LASSO Score
Metalloenzymes	COMT, catechol O-methyltransferase	1h1d	0.20
Serine Proteases	Thrombin	1ba8	0.04
Nuclear Hormone Receptors	PPARg, peroxisome proliferator activated receptor	1fm9	0.03
Other Enzymes	HIVRT, HIV reverse transcriptase	1rt1	0.02
Serine Proteases	FXa, factor Xa	1f0r	0.02
Kinases	VEGFr2, vascular endothelial growth factor receptor	1vr2	0.02
Kinases	SRC, tyrosine kinase SRC	2src	0.01
Other Enzymes	HMGR, hydroxymethylglutaryl-CoA reductase	1hw8	0.01
Other Enzymes	NA, neuraminidase	1a4g	0.01
Other Enzymes	HIVPR, HIV protease	1hpx	0.01
Nuclear Hormone Receptors	MR, mineralocorticoid receptor	2aa2	0.01
Other Enzymes	GPB, glycogen phosphorylase	1a8i	0.01
Nuclear Hormone Receptors	PR, progesterone receptor	1sr7	0.01
Nuclear Hormone Receptors	RXRa, retinoic X receptor R	1mvc	0.01
Other Enzymes	PARP, poly(ADP-ribose) polymerase	1efy	0.01
Other Enzymes	AmpC, AmpC beta-lactamase	1xgj	0.00
Kinases	PDGFrb, platelet derived growth factor receptor kinase	N/A	0.00
Other Enzymes	PNP, purine nucleoside phosphorylase	1b8o	0.00
Nuclear Hormone Receptors	ER, estrogen receptor; agonist	1l2i	0.00
Serine Proteases	Trypsin	1bju	0.00
Folate Enzymes	DHFR, dihydrofolate reductase	3dfr	0.00
Metalloenzymes	ACE, angiotensin-converting enzyme	1o86	0.00
Other Enzymes	SAHH, S-adenosyl-homocysteine hydrolase	1a7a	0.00
Kinases	FGFr1, fibroblast growth factor receptor kinase	1agw	0.00
Kinases	HSP90, human heat shock protein 90	1uy6	0.00
Kinases	TK, thymidine kinase	1kim	0.00
Nuclear Hormone Receptors	AR, androgen receptor	1xq2	0.00
Other Enzymes	COX-1, cyclooxygenase-1	1p4g	0.00
Metalloenzymes	ADA, adenosine deaminase	1stw	0.00
Other Enzymes	COX-2, cyclooxygenase-2	1cx2	0.00
Kinases	P38 MAP, P38 mitogen activated protein	1kv2	0.00
Folate Enzymes	GART, glycinamide ribonucleotide transformylase	1c2t	0.00
Kinases	EGFr, epidermal growth factor receptor	1m17	0.00
Kinases	CDK2, cyclindependent kinase 2	1ckp	0.00
Other Enzymes	AChE, acetylcholinesterase	1eve	0.00

Spectra