InChI=1/C10H15N/c1-9(11-2)8-10-6-4-3-5-7-10/h3-7,9,11H,8H2,1-2H3

Inherent Properties, Identifiers and References

ChemSpider ID:	1169
Empirical Formula:	C₁₀H₁₅N
Molecular Weight:	149.2328
Nominal Mass:	149 Da
Average Mass:	149.2328 Da
Monoisotopic Mass:	149.120449 Da

Systematic Name:

N-methyl-1-phenyl-propan-2-amine

SMILES:

N(C(Cc1ccccc1)C)C

InChI:

InChI=1/C10H15N/c1-9(11-2)8-10-6-4-3-5-7-10/h3-7,9,11H,8H2,1-2H3

InChIKey:

MYWUZJCMWCOHBA-UHFFFAOYAT

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Wikipedia Article(s)

Methamphetamine">Methamphetamine (, also known as methylamphetamine, N-methylamphetamine or desoxyephedrine) is a psychostimulant and sympathomimetic drug. It is a member of the family of phenylethylamines. The levorotary (R-isomer) levomethamphetamine is an over-the-counter drug and used in Vicks Inhalers for nasal decongestion and does not possess the CNS activity of dextro or racemic methamphetamine. The dextrorotatory (S-isomer) dextromethamphetamine can be prescribed to treat attention-deficit hyperactivity disorder, though unmethylated amphetamine is more commonly prescribed. Narcolepsy and obesity can also be treated by the aforementioned isomer under the brand name Desoxyn. It is considered a second line of treatment, used when amphetamine and methylphenidate cause the patient too many side effects. It is only recommended for short term use (~6 weeks) in obesity patients because it is thought that the anorectic effects of the drug are short lived and produce tolerance quickly, whereas the effects on CNS stimulation are much less susceptible to tolerance. It is also used illegally for weight loss and to maintain alertness, focus, motivation, and mental clarity for extended periods of time, and for recreational purposes. Methamphetamine enters the brain and triggers a cascading release of norepinephrine, dopamine and serotonin. To a lesser extent methamphetamine acts as a dopaminergic and adrenergic reuptake inhibitor and in high concentrations as a monamine oxidase inhibitor (MAOI). Since it stimulates the mesolimbic reward pathway, causing euphoria and excitement, it is prone to abuse and addiction. Users may become obsessed or perform repetitive tasks such as cleaning, hand-washing, or assembling and disassembling objects. Withdrawal is characterized by excessive sleeping, eating, and depression-like symptoms, often accompanied by anxiety and drug-craving. Users of methamphetamine sometimes take sedatives such as benzodiazepines as a means of easing their "come down". Methamphetamine has the potential to cause addiction. An addiction to methamphetamine typically occurs when a person begins to use the drug as a stimulant, because of its enhancing effects on pleasure and sex, alertness and ability to concentrate. Over time, however, the effectiveness decreases, and users find that they need to take higher doses to get the same results; also that they have great difficulty functioning effectively without the drug. Common nicknames for methamphetamine include "crank", "meth", "ice", "crystal", "tina", "glass", "P", and "yaa baa" (Thailand). Methamphetamine is sometimes referred to as "speed", but this term is usually used for regular amphetamine or dextroamphetamine. Read more... or Edit at Wikipedia...

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Supplemental Information

Links & References

GC of methamphetamine on Phenomenex Zebron ZB-1 with MS detection

Names and Synonyms

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

(-)-2--(Methyl-amino)-1-phenylpropane

(-)-N-Methylamphetamine

(+/-)-Methamphetamine

(+/-)-N,alpha-Dimethylbenzeneethanamine

(+/-)-N,alpha-Dimethylphenethylamine

(+/-)-N-Methylamphetamine

1-Phenyl-2-methylamino-propan [German]

2-(Methylamino)-1-phenylpropane

225-433-4 [EINECS/ELINCS]

231-559-0 [EINECS/ELINCS]

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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

Predicted Properties

LogP:	ACD/LogP: 1.94 XLogP: 2.20 ALOGPS: 3.37	# of Rule of 5 Violations:	0
ACD/LogD (pH 5.5):	-1.15	ACD/LogD (pH 7.4):	-0.79
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:	1	#H bond donors:	1
#Freely Rotating Bonds:	3	Polar Surface Area:	3.24 Å²
Index of Refraction:	1.503	Molar Refractivity:	48.62 cm³
Molar Volume:	164.4 cm³	Polarizability:	19.27 10^-24cm³
Surface Tension:	31.2 dyne/cm	Density:	0.907 g/cm³
Flash Point:	86.8 °C	Enthalpy of Vaporization:	45.19 kJ/mol
Boiling Point:	215.5 °C at 760 mmHg	Vapour Pressure:	0.147 mmHg at 25°C

MeSH

EPI Summary

            
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  2.22
    Log Kow (Exper. database match) =  2.07
       Exper. Ref:  Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  215.79  (Adapted Stein & Brown method)
    Melting Pt (deg C):  2.86  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.00448  (Modified Grain method)
    MP  (exp database):  172.5 deg C
    Subcooled liquid VP: 0.151 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):  1.329e+004
       log Kow used: 2.07 (expkow database)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  4280 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.37E-006  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  6.619E-008 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.07  (exp database)
  Log Kaw used:  -4.014  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  6.084
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.0131
   Biowin2 (Non-Linear Model)     :   0.9876
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8410  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6121  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2370
   Biowin6 (MITI Non-Linear Model):   0.1608
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.3076
 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):  20.1 Pa (0.151 mm Hg)
  Log Koa (Koawin est  ): 6.084
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.49E-007 
       Octanol/air (Koa) model:  2.98E-007 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  5.38E-006 
       Mackay model           :  1.19E-005 
       Octanol/air (Koa) model:  2.38E-005 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  92.6176 E-12 cm3/molecule-sec
      Half-Life =     0.115 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.386 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 8.65E-006 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1610
      Log Koc:  3.207 

 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 = 0.894 (BCF = 7.832)
       log Kow used: 2.07 (expkow database)

 Volatilization from Water:
    Henry LC:  2.37E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:        303  hours   (12.63 days)
    Half-Life from Model Lake :       3408  hours   (142 days)

 Removal In Wastewater Treatment:
    Total removal:               2.45  percent
    Total biodegradation:        0.10  percent
    Total sludge adsorption:     2.22  percent
    Total to Air:                0.13  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.319           2.77         1000       
   Water     31.2            360          1000       
   Soil      68.4            720          1000       
   Sediment  0.119           3.24e+003    0          
     Persistence Time: 417 hr


 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  2.22
    Log Kow (Exper. database match) =  2.07
       Exper. Ref:  Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  215.79  (Adapted Stein & Brown method)
    Melting Pt (deg C):  2.86  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.00448  (Modified Grain method)
    MP  (exp database):  172.5 deg C
    Subcooled liquid VP: 0.151 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):  1.329e+004
       log Kow used: 2.07 (expkow database)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  4280 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.37E-006  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  6.619E-008 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.07  (exp database)
  Log Kaw used:  -4.014  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  6.084
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.0131
   Biowin2 (Non-Linear Model)     :   0.9876
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8410  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6121  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2370
   Biowin6 (MITI Non-Linear Model):   0.1608
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.3076
 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):  20.1 Pa (0.151 mm Hg)
  Log Koa (Koawin est  ): 6.084
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.49E-007 
       Octanol/air (Koa) model:  2.98E-007 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  5.38E-006 
       Mackay model           :  1.19E-005 
       Octanol/air (Koa) model:  2.38E-005 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  92.6176 E-12 cm3/molecule-sec
      Half-Life =     0.115 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.386 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 8.65E-006 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1610
      Log Koc:  3.207 

 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 = 0.894 (BCF = 7.832)
       log Kow used: 2.07 (expkow database)

 Volatilization from Water:
    Henry LC:  2.37E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:        303  hours   (12.63 days)
    Half-Life from Model Lake :       3408  hours   (142 days)

 Removal In Wastewater Treatment:
    Total removal:               2.45  percent
    Total biodegradation:        0.10  percent
    Total sludge adsorption:     2.22  percent
    Total to Air:                0.13  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.319           2.77         1000       
   Water     31.2            360          1000       
   Soil      68.4            720          1000       
   Sediment  0.119           3.24e+003    0          
     Persistence Time: 417 hr