InChI=1/C11H12N2O3/c12-9(11(15)16)3-6-5-13-10-2-1-7(14)4-8(6)10/h1-2,4-5,9,13-14H,3,12H2,(H,15,16)/t9-/m0/s1

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Inherent Properties, Identifiers and References

ChemSpider ID:	388413
Empirical Formula:	C₁₁H₁₂N₂O₃
Molecular Weight:	220.2246
Nominal Mass:	220 Da
Average Mass:	220.2246 Da
Monoisotopic Mass:	220.084792 Da

Systematic Name:

(2S)-2-amino-3-(5-hydroxy-1H-indol-3-yl)propanoic acid

SMILES:

O=C(O)[C@@H](N)Cc2c1cc(O)ccc1nc2

InChI:

InChI=1/C11H12N2O3/c12-9(11(15)16)3-6-5-13-10-2-1-7(14)4-8(6)10/h1-2,4-5,9,13-14H,3,12H2,(H,15,16)/t9-/m0/s1

InChIKey:

LDCYZAJDBXYCGN-VIFPVBQEBZ

Std. InChI:

InChI=1S/C11H12N2O3/c12-9(11(15)16)3-6-5-13-10-2-1-7(14)4-8(6)10/h1-2,4-5,9,13-14H,3,12H2,(H,15,16)/t9-/m0/s1

Std. InChIKey:

LDCYZAJDBXYCGN-VIFPVBQESA-N

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Wikipedia Article(s)

5-Hydroxytryptophan or 5-HTP is a naturally occurring amino acid, a precursor to the neurotransmitter serotonin and an intermediate in tryptophan metabolism. It is marketed in the United States and other countries as a dietary supplement for use as an antidepressant, appetite suppressant, and sleep aid. However, according to a 2001 meta-analysis, insufficient high quality research has been done to establish that it is effective. Because it is naturally occurring it has not been sought to be approved as a drug in any country. Read more... or Edit at Wikipedia...

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Supplemental Information

User Data

experimental physchem properties

Melting Point: ca 265 dec.

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

Optical Rotation: -33 (c=1 in water)

No description available

miscellaneous

Safety: DANGER: POISON, irritates skin, eyes, lungs

See Chemical Safety

Names and Synonyms

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

204-039-6 [EINECS/ELINCS]

5-Hydroxyl-L-tryptophan

DL-5-HYDROXYTRYPTOPHAN

dl-5-Hydroxytryptophane

L-5HTP

L-5-hydroxy-Tryptophan

Oxyfan

Serotonyl

Telesol

Tryptophan, 5-hydroxy-, DL-

More...

Database ID(s)

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

Predicted Properties

LogP:	ACD/LogP: -0.14 XLogP: -1.70	# of Rule of 5 Violations:	1
ACD/LogD (pH 5.5):		ACD/LogD (pH 7.4):
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:	5	#H bond donors:	5
#Freely Rotating Bonds:	5	Polar Surface Area:	43.7 Å²
Index of Refraction:	1.737	Molar Refractivity:	59.65 cm³
Molar Volume:	148.3 cm³	Polarizability:	23.64 10^-24cm³
Surface Tension:	85 dyne/cm	Density:	1.484 g/cm³
Flash Point:	268.7 °C	Enthalpy of Vaporization:	83.55 kJ/mol
Boiling Point:	520.6 °C at 760 mmHg	Vapour Pressure:	1.15E-11 mmHg at 25°C

MeSH

EPI Summary

            
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  -1.70

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  467.08  (Adapted Stein & Brown method)
    Melting Pt (deg C):  302.15  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  2.55E-011  (Modified Grain method)
    MP  (exp database):  298-300 deg C
    Subcooled liquid VP: 2.82E-008 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):  3.15e+004
       log Kow used: -1.70 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  32075 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.06E-018  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.346E-016 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -1.70  (KowWin est)
  Log Kaw used:  -16.075  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  14.375
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.0397
   Biowin2 (Non-Linear Model)     :   0.9577
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.0831  (weeks       )
   Biowin4 (Primary Survey Model) :   3.9300  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2621
   Biowin6 (MITI Non-Linear Model):   0.0964
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.6115
 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):  3.76E-006 Pa (2.82E-008 mm Hg)
  Log Koa (Koawin est  ): 14.375
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.798 
       Octanol/air (Koa) model:  58.2 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.966 
       Mackay model           :  0.985 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 239.4526 E-12 cm3/molecule-sec
      Half-Life =     0.045 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.536 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 0.976 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  597.1
      Log Koc:  2.776 

 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: -1.70 (estimated)

 Volatilization from Water:
    Henry LC:  2.06E-018 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 4.218E+014  hours   (1.757E+013 days)
    Half-Life from Model Lake : 4.601E+015  hours   (1.917E+014 days)

 Removal In Wastewater Treatment:
    Total removal:               1.85  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.75  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       3.16e-009       1.07         1000       
   Water     39              360          1000       
   Soil      60.9            720          1000       
   Sediment  0.0713          3.24e+003    0          
     Persistence Time: 579 hr

SimBioSys LASSO

Descriptors: 0, 0, 3, 2, 1, 0, 0, 3, 0, 0, 1, 2, 2, 3, 1, 0, 9, 2, 1, 0, 0, 0, 0, 0

Category	Target	PDB Code	LASSO Score
Other Enzymes	NA, neuraminidase	1a4g	0.62
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
Nuclear Hormone Receptors	RXRa, retinoic X receptor R	1mvc	0.01
Kinases	SRC, tyrosine kinase SRC	2src	0.01
Other Enzymes	HMGR, hydroxymethylglutaryl-CoA reductase	1hw8	0.01
Kinases	HSP90, human heat shock protein 90	1uy6	0.01
Nuclear Hormone Receptors	MR, mineralocorticoid receptor	2aa2	0.01
Kinases	TK, thymidine kinase	1kim	0.01
Nuclear Hormone Receptors	PR, progesterone receptor	1sr7	0.01
Nuclear Hormone Receptors	ER, estrogen receptor; antagonist	3ert	0.01
Folate Enzymes	DHFR, dihydrofolate reductase	3dfr	0.00
Other Enzymes	PNP, purine nucleoside phosphorylase	1b8o	0.00
Other Enzymes	AmpC, AmpC beta-lactamase	1xgj	0.00
Kinases	PDGFrb, platelet derived growth factor receptor kinase	N/A	0.00
Nuclear Hormone Receptors	ER, estrogen receptor; agonist	1l2i	0.00
Metalloenzymes	COMT, catechol O-methyltransferase	1h1d	0.00
Metalloenzymes	ACE, angiotensin-converting enzyme	1o86	0.00
Other Enzymes	GPB, glycogen phosphorylase	1a8i	0.00
Kinases	CDK2, cyclindependent kinase 2	1ckp	0.00
Other Enzymes	HIVPR, HIV protease	1hpx	0.00
Kinases	FGFr1, fibroblast growth factor receptor kinase	1agw	0.00
Folate Enzymes	GART, glycinamide ribonucleotide transformylase	1c2t	0.00
Other Enzymes	COX-1, cyclooxygenase-1	1p4g	0.00
Other Enzymes	SAHH, S-adenosyl-homocysteine hydrolase	1a7a	0.00
Kinases	P38 MAP, P38 mitogen activated protein	1kv2	0.00
Other Enzymes	ALR2, aldose reductase	1ah3	0.00
Metalloenzymes	ADA, adenosine deaminase	1stw	0.00
Metalloenzymes	PDE5, phosphodiesterase 5	1xp0	0.00
Nuclear Hormone Receptors	AR, androgen receptor	1xq2	0.00
Nuclear Hormone Receptors	GR, glucocorticoid receptor	1m2z	0.00
Serine Proteases	Thrombin	1ba8	0.00
Serine Proteases	Trypsin	1bju	0.00
Other Enzymes	InhA, enoyl ACP reductase	1p44	0.00
Other Enzymes	PARP, poly(ADP-ribose) polymerase	1efy	0.00
Other Enzymes	COX-2, cyclooxygenase-2	1cx2	0.00
Other Enzymes	AChE, acetylcholinesterase	1eve	0.00
Kinases	EGFr, epidermal growth factor receptor	1m17	0.00