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API & reference standards

Amoxicillin-13C6

Amoxicillin-13C6 is listed in the API and reference-standard collection. Its represented structure has formula C16H19N3O5S and a calculated molecular weight of 371.37 g/mol.

2D chemical structure

S N H O N H 2 1 3 C 1 3 C 1 3 C 1 3 C O H 1 3 C 1 3 C O N O H O H ( R ) ( R ) ( S ) ( S )

Chemical identity

Catalog name
Amoxicillin-13C6
Common name
Amoxicillin-13C6
Chemical name
Not available
CAS
Not available
SMILES
CC1(C)S[C@@H]2[C@H](NC(=O)[C@H](N)[13c]3[13cH][13cH][13c](O)[13cH][13cH]3)C(=O)N2[C@H]1C(=O)O
InChI
InChI=1S/C16H19N3O5S/c1-16(2)11(15(23)24)19-13(22)10(14(19)25-16)18-12(21)9(17)7-3-5-8(20)6-4-7/h3-6,9-11,14,20H,17H2,1-2H3,(H,18,21)(H,23,24)/t9-,10-,11+,14-/m1/s1/i3+1,4+1,5+1,6+1,7+1,8+1
InChIKey
LSQZJLSUYDQPKJ-FKFDIMAKSA-N
Associated API
Amoxicillin

Record ID: A56b4252cb791

Computed properties

C16H19N3O5S Molecular formula
371.3651 g/molMolecular weight
371.1247 DaMonoisotopic exact mass
132.96 ŲTopological polar surface area
0.0237 Calculated LogP (Wildman–Crippen)
90.6937 cm³/molMolar refractivity (Wildman–Crippen)
6 countHydrogen-bond acceptors
4 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 2 4 6 Count H-bond acceptors H-bond donors Rotatable bonds Rings Aromatic rings Stereo centers

Element composition

C H N O S 0 4 8 12 16 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 weight371.365162.85
Calculated LogP (Wildman–Crippen)0.023714.27
Topological polar surface area132.9685.56
Hydrogen-bond acceptors675.83
Hydrogen-bond donors489.70
Rotatable bonds (strict)449.39

Complete molecular descriptors

PropertyCalculated valueUnit / type
Molecular formulaC16H19N3O5Sdimensionless
Molecular weight371.3651g/mol
Monoisotopic exact mass371.1247Da
Topological polar surface area132.96Ų
Calculated LogP (Wildman–Crippen)0.0237dimensionless
Molar refractivity (Wildman–Crippen)90.6937cm³/mol
Hydrogen-bond acceptors6count
Hydrogen-bond donors4count
Rotatable bonds (strict)4count
Heavy atoms25count
Heteroatoms9count
Rings3count
Aromatic rings1count
Aliphatic rings2count
Saturated rings2count
Aromatic heterocycles0count
Aliphatic heterocycles2count
Saturated heterocycles2count
Aromatic carbocycles1count
Aliphatic carbocycles0count
Fraction of sp³ carbon atoms0.4375fraction
Formal charge0e
Disconnected components1count
Isotopically specified atoms6count
Potential atom stereocenters4count
Unspecified atom stereocenters0count
Spiro atoms0count
Bridgehead atoms0count
Labute approximate surface area147.9149Ų
Valence electrons134count
Radical electrons0count
Bertz complexity735.7907index
Balaban J1.7043index

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 Amoxicillin-13C6

PDE, HBEL and impurity assessment for Amoxicillin-13C6

For a substance-specific assessment, request a PDE report for Amoxicillin-13C6 or explore HBEL derivation for Amoxicillin-13C6. These services address exposure limits using toxicological evidence and the intended use of the substance.

For pharmaceutical development, explore prediction of degradation products of Amoxicillin-13C6 and qualification of impurities related to Amoxicillin-13C6.

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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