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Record Information

Version

5.0

Status

Detected but not Quantified

Creation Date

2021-09-10 22:58:18 UTC

Update Date

2021-09-26 22:54:40 UTC

HMDB ID

HMDB0245925

Secondary Accession Numbers

None

Metabolite Identification

Common Name

3-Methyl-1-propylxanthine

Description

3-Methyl-1-propylxanthine, also known as 1-MPX, belongs to the class of organic compounds known as xanthines. These are purine derivatives with a ketone group conjugated at carbons 2 and 6 of the purine moiety. Based on a literature review very few articles have been published on 3-Methyl-1-propylxanthine. This compound has been identified in human blood as reported by (PMID: 31557052 ). 3-methyl-1-propylxanthine is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically 3-Methyl-1-propylxanthine is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources.

Structure

MOL 3D MOL SDF 3D SDF PDB 3D PDB SMILES InChI


  Mrv1652309112100582D          

 15 16  0  0  0  0            999 V2000
    4.2135    0.6979    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.4990    1.1104    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.7845    0.6979    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.0701    1.1104    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
    1.3556    0.6979    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.3556   -0.1271    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.6411    1.1104    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.6411    1.9354    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.1435    2.1904    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
   -0.6284    1.5229    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.1435    0.8555    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
    1.3556    2.3479    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
    2.0701    1.9354    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.7845    2.3479    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    1.3556    3.1729    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0  0  0  0
  2  3  1  0  0  0  0
  3  4  1  0  0  0  0
  4  5  1  0  0  0  0
  5  6  2  0  0  0  0
  5  7  1  0  0  0  0
  7  8  2  0  0  0  0
  8  9  1  0  0  0  0
  9 10  2  0  0  0  0
 10 11  1  0  0  0  0
  7 11  1  0  0  0  0
  8 12  1  0  0  0  0
 12 13  1  0  0  0  0
  4 13  1  0  0  0  0
 13 14  2  0  0  0  0
 12 15  1  0  0  0  0
M  END
> <DATABASE_ID>
HMDB0245925

> <DATABASE_NAME>
hmdb

> <SMILES>
CCCN1C(=O)N(C)C2=C(NC=N2)C1=O

> <INCHI_IDENTIFIER>
InChI=1S/C9H12N4O2/c1-3-4-13-8(14)6-7(11-5-10-6)12(2)9(13)15/h5H,3-4H2,1-2H3,(H,10,11)

> <INCHI_KEY>
UEGOAAXVUJWIHJ-UHFFFAOYSA-N

> <FORMULA>
C9H12N4O2

> <MOLECULAR_WEIGHT>
208.221

> <EXACT_MASS>
208.096025642

> <JCHEM_ACCEPTOR_COUNT>
3

> <JCHEM_ATOM_COUNT>
27

> <JCHEM_AVERAGE_POLARIZABILITY>
20.885833658866908

> <JCHEM_BIOAVAILABILITY>
1

> <JCHEM_DONOR_COUNT>
1

> <JCHEM_FORMAL_CHARGE>
0

> <JCHEM_GHOSE_FILTER>
1

> <JCHEM_IUPAC>
3-methyl-1-propyl-2,3,6,7-tetrahydro-1H-purine-2,6-dione

> <ALOGPS_LOGP>
0.70

> <JCHEM_LOGP>
0.11000869233333337

> <ALOGPS_LOGS>
-1.23

> <JCHEM_MDDR_LIKE_RULE>
0

> <JCHEM_NUMBER_OF_RINGS>
2

> <JCHEM_PHYSIOLOGICAL_CHARGE>
0

> <JCHEM_PKA_STRONGEST_ACIDIC>
7.808276900298789

> <JCHEM_PKA_STRONGEST_BASIC>
-0.7799915326700587

> <JCHEM_POLAR_SURFACE_AREA>
69.30000000000001

> <JCHEM_REFRACTIVITY>
54.2071

> <JCHEM_ROTATABLE_BOND_COUNT>
2

> <JCHEM_RULE_OF_FIVE>
1

> <ALOGPS_SOLUBILITY>
1.23e+01 g/l

> <JCHEM_TRADITIONAL_IUPAC>
3-methyl-1-propyl-7H-purine-2,6-dione

> <JCHEM_VEBER_RULE>
0

$$$$

HEADER    PROTEIN                                 11-SEP-21   NONE
TITLE     NULL                                                        
COMPND    NULL                                                        
SOURCE    NULL                                                        
KEYWDS    NULL                                                        
EXPDTA    NULL                                                        
AUTHOR    Marvin                                                      
REVDAT   1   11-SEP-21         0                                  
HETATM    1  C   UNK     0       7.865   1.303   0.000  0.00  0.00           C+0
HETATM    2  C   UNK     0       6.531   2.073   0.000  0.00  0.00           C+0
HETATM    3  C   UNK     0       5.198   1.303   0.000  0.00  0.00           C+0
HETATM    4  N   UNK     0       3.864   2.073   0.000  0.00  0.00           N+0
HETATM    5  C   UNK     0       2.530   1.303   0.000  0.00  0.00           C+0
HETATM    6  O   UNK     0       2.530  -0.237   0.000  0.00  0.00           O+0
HETATM    7  C   UNK     0       1.197   2.073   0.000  0.00  0.00           C+0
HETATM    8  C   UNK     0       1.197   3.613   0.000  0.00  0.00           C+0
HETATM    9  N   UNK     0      -0.268   4.089   0.000  0.00  0.00           N+0
HETATM   10  C   UNK     0      -1.173   2.843   0.000  0.00  0.00           C+0
HETATM   11  N   UNK     0      -0.268   1.597   0.000  0.00  0.00           N+0
HETATM   12  N   UNK     0       2.530   4.383   0.000  0.00  0.00           N+0
HETATM   13  C   UNK     0       3.864   3.613   0.000  0.00  0.00           C+0
HETATM   14  O   UNK     0       5.198   4.383   0.000  0.00  0.00           O+0
HETATM   15  C   UNK     0       2.530   5.923   0.000  0.00  0.00           C+0
CONECT    1    2                                                            
CONECT    2    1    3                                                       
CONECT    3    2    4                                                       
CONECT    4    3    5   13                                                  
CONECT    5    4    6    7                                                  
CONECT    6    5                                                            
CONECT    7    5    8   11                                                  
CONECT    8    7    9   12                                                  
CONECT    9    8   10                                                       
CONECT   10    9   11                                                       
CONECT   11   10    7                                                       
CONECT   12    8   13   15                                                  
CONECT   13   12    4   14                                                  
CONECT   14   13                                                            
CONECT   15   12                                                            
MASTER        0    0    0    0    0    0    0    0   15    0   32    0
END

COMPND    HMDB0245925
HETATM    1  C1  UNL     1      -4.122   0.242   0.043  1.00  0.00           C  
HETATM    2  C2  UNL     1      -2.684  -0.003   0.472  1.00  0.00           C  
HETATM    3  C3  UNL     1      -1.807   0.348  -0.704  1.00  0.00           C  
HETATM    4  N1  UNL     1      -0.405   0.162  -0.440  1.00  0.00           N  
HETATM    5  C4  UNL     1       0.298   1.184   0.063  1.00  0.00           C  
HETATM    6  O1  UNL     1      -0.219   2.318   0.320  1.00  0.00           O  
HETATM    7  C5  UNL     1       1.657   1.087   0.346  1.00  0.00           C  
HETATM    8  N2  UNL     1       2.599   1.889   0.831  1.00  0.00           N  
HETATM    9  C6  UNL     1       3.757   1.236   0.883  1.00  0.00           C  
HETATM   10  N3  UNL     1       3.567  -0.004   0.427  1.00  0.00           N  
HETATM   11  C7  UNL     1       2.251  -0.113   0.085  1.00  0.00           C  
HETATM   12  N4  UNL     1       1.511  -1.115  -0.420  1.00  0.00           N  
HETATM   13  C8  UNL     1       2.179  -2.392  -0.689  1.00  0.00           C  
HETATM   14  C9  UNL     1       0.195  -1.006  -0.689  1.00  0.00           C  
HETATM   15  O2  UNL     1      -0.406  -2.007  -1.161  1.00  0.00           O  
HETATM   16  H1  UNL     1      -4.345   1.304   0.298  1.00  0.00           H  
HETATM   17  H2  UNL     1      -4.815  -0.439   0.603  1.00  0.00           H  
HETATM   18  H3  UNL     1      -4.187   0.082  -1.054  1.00  0.00           H  
HETATM   19  H4  UNL     1      -2.612  -1.060   0.766  1.00  0.00           H  
HETATM   20  H5  UNL     1      -2.466   0.619   1.340  1.00  0.00           H  
HETATM   21  H6  UNL     1      -1.990   1.440  -0.908  1.00  0.00           H  
HETATM   22  H7  UNL     1      -2.147  -0.177  -1.614  1.00  0.00           H  
HETATM   23  H8  UNL     1       2.433   2.877   1.121  1.00  0.00           H  
HETATM   24  H9  UNL     1       4.697   1.634   1.233  1.00  0.00           H  
HETATM   25  H10 UNL     1       1.461  -3.236  -0.612  1.00  0.00           H  
HETATM   26  H11 UNL     1       2.603  -2.376  -1.709  1.00  0.00           H  
HETATM   27  H12 UNL     1       2.996  -2.495   0.056  1.00  0.00           H  
CONECT    1    2   16   17   18
CONECT    2    3   19   20
CONECT    3    4   21   22
CONECT    4    5   14
CONECT    5    6    6    7
CONECT    7    8   11   11
CONECT    8    9   23
CONECT    9   10   10   24
CONECT   10   11
CONECT   11   12
CONECT   12   13   14
CONECT   13   25   26   27
CONECT   14   15   15
END

View in JSmol View NMR Assignments View Stereo Labels

Synonyms

Value	Source
1-MPX	HMDB
1-Methyl-3-propylxanthine	HMDB

Chemical Formula

C₉H₁₂N₄O₂

Average Molecular Weight

208.221

Monoisotopic Molecular Weight

208.096025642

IUPAC Name

3-methyl-1-propyl-2,3,6,7-tetrahydro-1H-purine-2,6-dione

Traditional Name

3-methyl-1-propyl-7H-purine-2,6-dione

CAS Registry Number

Not Available

SMILES

CCCN1C(=O)N(C)C2=C(NC=N2)C1=O

InChI Identifier

InChI=1S/C9H12N4O2/c1-3-4-13-8(14)6-7(11-5-10-6)12(2)9(13)15/h5H,3-4H2,1-2H3,(H,10,11)

InChI Key

UEGOAAXVUJWIHJ-UHFFFAOYSA-N

Chemical Taxonomy

Description

Belongs to the class of organic compounds known as xanthines. These are purine derivatives with a ketone group conjugated at carbons 2 and 6 of the purine moiety.

Kingdom

Organic compounds

Super Class

Organoheterocyclic compounds

Class

Imidazopyrimidines

Sub Class

Purines and purine derivatives

Direct Parent

Xanthines

Alternative Parents

Substituents

Xanthine
6-oxopurine
Purinone
Alkaloid or derivatives
Pyrimidone
Pyrimidine
Azole
Imidazole
Heteroaromatic compound
Vinylogous amide
Lactam
Urea
Azacycle
Hydrocarbon derivative
Organic oxide
Organooxygen compound
Organonitrogen compound
Organic nitrogen compound
Organopnictogen compound
Organic oxygen compound
Aromatic heteropolycyclic compound

Molecular Framework

Aromatic heteropolycyclic compounds

External Descriptors

Not Available

Ontology

Physiological effect

Not Available

Disposition

Biological location

Non-excretory biofluid

Biofluid or Excreta

Blood (PMID: 31557052)

Process

Not Available

Role

Not Available

Physical Properties

State

Not Available

Experimental Molecular Properties

Property	Value	Reference
Melting Point	Not Available	Not Available
Boiling Point	Not Available	Not Available
Water Solubility	Not Available	Not Available
LogP	Not Available	Not Available

Experimental Chromatographic Properties

Not Available

Predicted Molecular Properties

Property	Value	Source
logP	0.7	ALOGPS
logP	0.11	ChemAxon
logS	-1.2	ALOGPS
pKa (Strongest Acidic)	7.81	ChemAxon
pKa (Strongest Basic)	-0.78	ChemAxon
Physiological Charge	0	ChemAxon
Hydrogen Acceptor Count	3	ChemAxon
Hydrogen Donor Count	1	ChemAxon
Polar Surface Area	69.3 Å²	ChemAxon
Rotatable Bond Count	2	ChemAxon
Refractivity	54.21 m³·mol⁻¹	ChemAxon
Polarizability	20.89 Å³	ChemAxon
Number of Rings	2	ChemAxon
Bioavailability	Yes	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	Yes	ChemAxon
Veber's Rule	No	ChemAxon
MDDR-like Rule	No	ChemAxon

Predicted Chromatographic Properties

Predicted Collision Cross Sections

Predictor	Adduct Type	CCS Value (Å²)	Reference
DeepCCS	[M+H]+	142.257	30932474
DeepCCS	[M-H]-	139.899	30932474
DeepCCS	[M-2H]-	174.701	30932474
DeepCCS	[M+Na]+	150.331	30932474
AllCCS	[M+H]+	145.1	32859911
AllCCS	[M+H-H2O]+	141.1	32859911
AllCCS	[M+NH4]+	148.9	32859911
AllCCS	[M+Na]+	149.9	32859911
AllCCS	[M-H]-	146.5	32859911
AllCCS	[M+Na-2H]-	146.9	32859911
AllCCS	[M+HCOO]-	147.3	32859911

Predicted Kovats Retention Indices

Underivatized

Metabolite	SMILES	Kovats RI Value	Column Type	Reference
3-Methyl-1-propylxanthine	CCCN1C(=O)N(C)C2=C(NC=N2)C1=O	2413.5	Standard polar	33892256
3-Methyl-1-propylxanthine	CCCN1C(=O)N(C)C2=C(NC=N2)C1=O	2066.1	Standard non polar	33892256
3-Methyl-1-propylxanthine	CCCN1C(=O)N(C)C2=C(NC=N2)C1=O	2085.7	Semi standard non polar	33892256

Derivatized

Derivative Name / Structure	SMILES	Kovats RI Value	Column Type	Reference
3-Methyl-1-propylxanthine,1TMS,isomer #1	CCCN1C(=O)C2=C(N=CN2[Si](C)(C)C)N(C)C1=O	1956.1	Semi standard non polar	33892256
3-Methyl-1-propylxanthine,1TMS,isomer #1	CCCN1C(=O)C2=C(N=CN2[Si](C)(C)C)N(C)C1=O	2069.9	Standard non polar	33892256
3-Methyl-1-propylxanthine,1TMS,isomer #1	CCCN1C(=O)C2=C(N=CN2[Si](C)(C)C)N(C)C1=O	2687.2	Standard polar	33892256
3-Methyl-1-propylxanthine,1TBDMS,isomer #1	CCCN1C(=O)C2=C(N=CN2[Si](C)(C)C(C)(C)C)N(C)C1=O	2179.2	Semi standard non polar	33892256
3-Methyl-1-propylxanthine,1TBDMS,isomer #1	CCCN1C(=O)C2=C(N=CN2[Si](C)(C)C(C)(C)C)N(C)C1=O	2278.3	Standard non polar	33892256
3-Methyl-1-propylxanthine,1TBDMS,isomer #1	CCCN1C(=O)C2=C(N=CN2[Si](C)(C)C(C)(C)C)N(C)C1=O	2737.9	Standard polar	33892256

Spectra

GC-MS Spectra

Spectrum Type	Description	Splash Key	Deposition Date	Source	View
Predicted GC-MS	Predicted GC-MS Spectrum - 3-Methyl-1-propylxanthine GC-MS (Non-derivatized) - 70eV, Positive	splash10-00ai-3900000000-6a8a26b190a4ebb3e4ba	2021-09-24	Wishart Lab	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - 3-Methyl-1-propylxanthine GC-MS (Non-derivatized) - 70eV, Positive	Not Available	2021-10-12	Wishart Lab	View Spectrum

MS/MS Spectra

Spectrum Type	Description	Splash Key	Deposition Date	Source	View
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Methyl-1-propylxanthine 10V, Positive-QTOF	splash10-0a4i-0090000000-e70d89ab34bd1df962c1	2021-10-12	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Methyl-1-propylxanthine 20V, Positive-QTOF	splash10-014i-0920000000-cc08639e29d7f9fdbfad	2021-10-12	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Methyl-1-propylxanthine 40V, Positive-QTOF	splash10-006t-9600000000-735ffc4e7cec8c480318	2021-10-12	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Methyl-1-propylxanthine 10V, Negative-QTOF	splash10-0a4i-0090000000-3d956f172709c87682f2	2021-10-12	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Methyl-1-propylxanthine 20V, Negative-QTOF	splash10-0aor-7790000000-ff0212c66502f267eb83	2021-10-12	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Methyl-1-propylxanthine 40V, Negative-QTOF	splash10-0006-9100000000-8100c56c0fcc2e4f0d4e	2021-10-12	Wishart Lab	View Spectrum

NMR Spectra

Spectrum Type	Description	Deposition Date	Source	View
Predicted 1D NMR	¹³C NMR Spectrum (1D, 100 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 100 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 1000 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 1000 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 200 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 200 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 300 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 300 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 400 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 400 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 500 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 500 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 600 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 600 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 700 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 700 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 800 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 800 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 900 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 900 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum

Biological Properties

Cellular Locations

Not Available

Biospecimen Locations

Blood

Tissue Locations

Not Available

Pathways

Not Available

Name	SMPDB/PathBank	KEGG

Normal Concentrations

Biospecimen	Status	Value	Age	Sex	Condition	Reference	Details
Blood	Detected but not Quantified	Not Quantified	Not Specified	Not Specified	Normal	31557052	details

Abnormal Concentrations

Not Available

Associated Disorders and Diseases

Disease References

None

Associated OMIM IDs

None

External Links

DrugBank ID

Not Available

Phenol Explorer Compound ID

Not Available

FooDB ID

Not Available

KNApSAcK ID

Not Available

Chemspider ID

152522

KEGG Compound ID

Not Available

BioCyc ID

Not Available

BiGG ID

Not Available

Wikipedia Link

Not Available

METLIN ID

Not Available

PubChem Compound

174907

PDB ID

Not Available

ChEBI ID

Not Available

Food Biomarker Ontology

Not Available

VMH ID

Not Available

MarkerDB ID

Not Available

Good Scents ID

Not Available

References

Synthesis Reference

Not Available

Material Safety Data Sheet (MSDS)

Not Available

General References

Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26. [PubMed:31557052 ]

Showing metabocard for 3-Methyl-1-propylxanthine (HMDB0245925)

MOL for HMDB0245925 (3-Methyl-1-propylxanthine)

3D MOL for HMDB0245925 (3-Methyl-1-propylxanthine)

3D SDF for HMDB0245925 (3-Methyl-1-propylxanthine)

3D-SDF for HMDB0245925 (3-Methyl-1-propylxanthine)

PDB for HMDB0245925 (3-Methyl-1-propylxanthine)

3D PDB for HMDB0245925 (3-Methyl-1-propylxanthine)

SMILES for HMDB0245925 (3-Methyl-1-propylxanthine)

INCHI for HMDB0245925 (3-Methyl-1-propylxanthine)

Structure for HMDB0245925 (3-Methyl-1-propylxanthine)

3D Structure for HMDB0245925 (3-Methyl-1-propylxanthine)

Predicted Collision Cross Sections

Predicted Kovats Retention Indices

Underivatized

Derivatized

GC-MS Spectra

MS/MS Spectra

NMR Spectra