ContaminantDB: 5,7-DIHYDRO-2-METHYLTHIENO(3,4-D)PYRIMIDINE

Identification Taxonomy Biological Properties Physical Properties Toxicity Profile Spectra Concentrations Links References XML

Record Information

Version

1.0

Creation Date

2016-05-19 02:01:05 UTC

Update Date

2026-04-03 08:59:03 UTC

Accession Number

CHEM005357

Identification

Common Name

5,7-DIHYDRO-2-METHYLTHIENO(3,4-D)PYRIMIDINE

Class

Small Molecule

Description

Cystine-derived Maillard produced 5,7-Dihydro-2-methylthieno[3,4-d]pyrimidine is a flavouring ingredient. Sweetness enhancer at low concentration (10 ppm), at higher concentration enhances root vegetable flavour in chicken broth base.

Contaminant Sources

EAFUS Chemicals
FooDB Chemicals

Contaminant Type

Not Available

Chemical Structure

MOL SDF PDB SMILES InChI

Synonyms

Value	Source
2-Methyl-5,7-dihydrothieno(3,4-D)pyrimidine	HMDB
2-Methyl-5,7-dihydrothieno[3,4-D]pyrimidine	HMDB
5,7-dihydro-2-Methyl-thieno(3,4-D)pyrimidine	HMDB
5,7-dihydro-2-methylthieno(3,4-D)Pyrimidine	HMDB
FEMA 3338	HMDB

Chemical Formula

C₇H₈N₂S

Average Molecular Mass

152.220 g/mol

Monoisotopic Mass

152.041 g/mol

CAS Registry Number

36267-71-7

IUPAC Name

2-methyl-5H,7H-thieno[3,4-d]pyrimidine

Traditional Name

2-methyl-5H,7H-thieno[3,4-d]pyrimidine

SMILES

Not Available

InChI Identifier

InChI=1S/C7H8N2S/c1-5-8-2-6-3-10-4-7(6)9-5/h2H,3-4H2,1H3

InChI Key

XSUYIZJJKIKWFN-UHFFFAOYSA-N

Chemical Taxonomy

Description

belongs to the class of organic compounds known as thienopyrimidines. These are heterocyclic compounds containing a thiophene ring fused to a pyrimidine ring. Thiophene is 5-membered ring consisting of four carbon atoms and one sulfur atom. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions.

Kingdom

Organic compounds

Super Class

Organoheterocyclic compounds

Class

Thienopyrimidines

Sub Class

Not Available

Direct Parent

Thienopyrimidines

Alternative Parents

Substituents

Thienopyrimidine
Pyrimidine
Heteroaromatic compound
Azacycle
Dialkylthioether
Thioether
Organic nitrogen compound
Organopnictogen compound
Hydrocarbon derivative
Organonitrogen compound
Aromatic heteropolycyclic compound

Molecular Framework

Aromatic heteropolycyclic compounds

External Descriptors

Not Available

Biological Properties

Status

Detected and Not Quantified

Origin

Not Available

Cellular Locations

Not Available

Biofluid Locations

Not Available

Tissue Locations

Not Available

Pathways

Not Available

Applications

Not Available

Biological Roles

Not Available

Chemical Roles

Not Available

Physical Properties

State

Not Available

Appearance

Not Available

Experimental Properties

Property	Value
Melting Point	Not Available
Boiling Point	Not Available
Solubility	Not Available

Predicted Properties

Property	Value	Source
Water Solubility	7.17 g/L	ALOGPS
logP	0.95	ALOGPS
logP	0.95	ChemAxon
logS	-1.3	ALOGPS
pKa (Strongest Basic)	2.02	ChemAxon
Physiological Charge	0	ChemAxon
Hydrogen Acceptor Count	2	ChemAxon
Hydrogen Donor Count	0	ChemAxon
Polar Surface Area	25.78 Å²	ChemAxon
Rotatable Bond Count	0	ChemAxon
Refractivity	43.02 m³·mol⁻¹	ChemAxon
Polarizability	16.05 Å³	ChemAxon
Number of Rings	2	ChemAxon
Bioavailability	1	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	No	ChemAxon
Veber's Rule	Yes	ChemAxon
MDDR-like Rule	No	ChemAxon

Spectra

Spectrum Type	Description	Splash Key	View
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	splash10-0zfr-2900000000-2474de04133f8444b981	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	Not Available	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-0udi-0900000000-f6b8a53870c07c0a2e75	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-0udi-0900000000-9819704a57b38b49c4ee	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-08i9-6900000000-a063ca9f92d029e7ac00	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-0udi-0900000000-3504fcdb5dc65eb2ace3	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-0udi-1900000000-b278a607d9cf01e1b7c8	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-000i-4900000000-514cde59921747f51737	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-0udi-2900000000-57620acde88986802656	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-0udi-0900000000-5b56ad2ab5e55d64664d	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-014l-9300000000-2446811585bd4c107985	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-0udi-0900000000-eedac6a369762f424a1e	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-0zfr-0900000000-e06c79dfaf7b4a5ed992	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-052s-3900000000-f7fd8cb746ee60746af2	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum

Toxicity Profile

Route of Exposure

Not Available

Mechanism of Toxicity

Not Available

Metabolism

Not Available

Toxicity Values

Not Available

Lethal Dose

Not Available

Carcinogenicity (IARC Classification)

Not Available

Uses/Sources

Not Available

Minimum Risk Level

Not Available

Health Effects

Not Available

Symptoms

Not Available

Treatment

Not Available

Concentrations

Not Available

External Links

DrugBank ID

Not Available

HMDB ID

HMDB0041565

FooDB ID

FDB021555

Phenol Explorer ID

Not Available

KNApSAcK ID

Not Available

BiGG ID

Not Available

BioCyc ID

Not Available

METLIN ID

Not Available

PDB ID

Not Available

Wikipedia Link

Not Available

Chemspider ID

55809

ChEBI ID

Not Available

PubChem Compound ID

61951

Kegg Compound ID

Not Available

YMDB ID

Not Available

ECMDB ID

Not Available

References

Synthesis Reference

Not Available

MSDS

Not Available

General References

1. Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.

5,7-DIHYDRO-2-METHYLTHIENO(3,4-D)PYRIMIDINE (CHEM005357)

Structure for CHEM005357: 5,7-DIHYDRO-2-METHYLTHIENO(3,4-D)PYRIMIDINE