(R)-3-Amino-2-phenylpropionic acid 3D Molecular Model — CAS 1008-63-5
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Free educational (R)-3-Amino-2-phenylpropionic acid model (CAS 1008-63-5), engraved element symbol on every atom.
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(R)-3-Amino-2-phenylpropionic acid (C9H11NO2, CAS 1008-63-5) — a free educational 3D molecular model for teachers and students, by MolGod.org. Symbols are engraved into every atom, so students read atoms by symbol, not by colour.
Which rings can the class see in (R)-3-Amino-2-phenylpropionic acid? The answer is one aromatic 6-membered ring, joined up by 23 bonds altogether (16 single, 1 double and 6 aromatic, drawn in Kekulé form). Counting task: 9 C + 11 H + 1 N + 2 O gives 23 engraved spheres; can the class rebuild the formula C9H11NO2 from the model alone? Before any theory, let students hunt on the model for the carboxylic acid group (-COOH) and the primary amino group (-NH2). (R)-3-Amino-2-phenylpropionic acid has one stereocentre (R): a hands-on way to practise finding it and checking the CIP assignment. It makes aromaticity and delocalised electrons, chirality, enantiomers and CIP (R/S) rules, the carbonyl group (C=O), as well as amines and basicity easier to see.
MolGod.org builds and releases these models at no cost for chemistry teaching. Teachers: use the model for an exit-ticket question on the structure the class has just studied.
Full record and more free models: https://molgod.org/molecule/1008-63-5/?utm_source=printables&utm_medium=referral&utm_campaign=edu-3d-models
Licence & provenance: https://molgod.org/licenses/stl/1008-63-5/
Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:(R)-3-Amino-2-phenylpropionic_acid-3D-molecular-model-engraved-CAS-1008-63-5.stl
A ball-and-stick model of (R)-3-Amino-2-phenylpropionic acid with each element symbol recessed into its atom sphere, generated by MolGod.org from a PubChem-computed 3D conformer (not an experimental crystal structure); atomic coordinates and connectivity are unchanged. STL mesh: 289,110 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer.
Chemical identity
CAS Registry Number: 1008-63-5
Molecular formula: C9H11NO2
Molar mass: 165.19 g/mol (exact mass 165.078978594)
IUPAC name: (2R)-3-amino-2-phenylpropanoic acid
MolGod ID: MG_440-181-723-28 (https://molgod.org/id/MG_440-181-723-28)
PubChem CID: 10964866 (https://pubchem.ncbi.nlm.nih.gov/compound/10964866)
Wikidata: Q76416339 (https://www.wikidata.org/wiki/Q76416339)
InChIKey: LRCYAJZPDFSJPQ-QMMMGPOBSA-N
SMILES: C1=CC=C(C=C1)[C@H](CN)C(=O)O
Required attribution (CC BY-SA 4.0): "(R)-3-Amino-2-phenylpropionic acid 3D model by MolGod.org — https://molgod.org/molecule/1008-63-5/ — CC BY-SA 4.0"
Licence text: https://creativecommons.org/licenses/by-sa/4.0/