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API & reference standards

Theophilline-D6

Theophilline-D6 is listed in the API and reference-standard collection under CAS 117490-39-8. Its represented structure has formula C7H8N4O2 and a calculated molecular weight of 186.20 g/mol.

2D chemical structure

2 H 2 H 2 H N O N H N N 2 H 2 H 2 H O

Chemical identity

Catalog name
Theophilline-D6
Common name
Theophilline-D6
Chemical name
1,3-bis(trideuteriomethyl)-7H-purine-2,6-dione
CAS
117490-39-8
SMILES
[2H]C([2H])([2H])n1c(=O)c2[nH]cnc2n(C([2H])([2H])[2H])c1=O
InChI
InChI=1S/C7H8N4O2/c1-10-5-4(8-3-9-5)6(12)11(2)7(10)13/h3H,1-2H3,(H,8,9)/i1D3,2D3
InChIKey
ZFXYFBGIUFBOJW-WFGJKAKNSA-N
Associated API
Theophylline

Record ID: A0b61eeea4258

Computed properties

C7H8N4O2 Molecular formula
186.2036 g/molMolecular weight
186.1024 DaMonoisotopic exact mass
72.68 ŲTopological polar surface area
-1.0397 Calculated LogP (Wildman–Crippen)
46.5757 cm³/molMolar refractivity (Wildman–Crippen)
3 countHydrogen-bond acceptors
1 countHydrogen-bond donors

Descriptors are calculated from the displayed SMILES. Calculated LogP is not a measured partition coefficient or a pH-specific LogD. The structure contains 6 isotopically specified atoms.

Molecular descriptor profile

Descriptor radar

Mol. weight LogP TPSA HBA HBD Rotatable 25 50 75 100

Structural feature counts

0 1 2 3 Count H-bond acceptors H-bond donors Rotatable bonds Rings Aromatic rings Stereo centers

Element composition

C H N O 0 2 4 6 8 Number of atoms

Radar scale: 0–100 percentile within 25,771 distinct represented structures in this release, using the midpoint rank for ties. Larger values indicate a higher descriptor rank, not greater safety or toxicity. Element counts include hydrogen and combine isotopes under each element.

Radar values and percentile reference
DescriptorValuePercentile
Molecular weight186.203613.96
Calculated LogP (Wildman–Crippen)-1.03977.37
Topological polar surface area72.6851.90
Hydrogen-bond acceptors333.13
Hydrogen-bond donors138.08
Rotatable bonds (strict)03.45

Complete molecular descriptors

PropertyCalculated valueUnit / type
Molecular formulaC7H8N4O2dimensionless
Molecular weight186.2036g/mol
Monoisotopic exact mass186.1024Da
Topological polar surface area72.68Ų
Calculated LogP (Wildman–Crippen)-1.0397dimensionless
Molar refractivity (Wildman–Crippen)46.5757cm³/mol
Hydrogen-bond acceptors3count
Hydrogen-bond donors1count
Rotatable bonds (strict)0count
Heavy atoms13count
Heteroatoms6count
Rings2count
Aromatic rings2count
Aliphatic rings0count
Saturated rings0count
Aromatic heterocycles2count
Aliphatic heterocycles0count
Saturated heterocycles0count
Aromatic carbocycles0count
Aliphatic carbocycles0count
Fraction of sp³ carbon atoms0.2857fraction
Formal charge0e
Disconnected components1count
Isotopically specified atoms6count
Potential atom stereocenters0count
Unspecified atom stereocenters0count
Spiro atoms0count
Bridgehead atoms0count
Labute approximate surface area80.8839Ų
Valence electrons68count
Radical electrons0count
Bertz complexity747.9944index
Balaban J3.1012index

Ring categories overlap and should not be summed. No toxicity result, PDE, HBEL or acceptable intake is inferred from these descriptors.

Toxicological services and resources for Theophilline-D6

PDE, HBEL and impurity assessment for Theophilline-D6

For a substance-specific assessment, request a PDE report for Theophilline-D6 or explore HBEL derivation for Theophilline-D6. These services address exposure limits using toxicological evidence and the intended use of the substance.

For pharmaceutical development, explore prediction of degradation products of Theophilline-D6 and qualification of impurities related to Theophilline-D6.

Related Altox services and technical resources

Identity sources and calculation method

Identifiers originate from the source catalogues and available public identity records. InChI and InChIKey on this page are generated from the displayed SMILES. RDKit validation checks the molecular representation; it does not independently verify every catalogue assignment.

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