[1] Daylight Theory: SMILES, 2014-12-02T22:55:24.000Z, 2025-03-28T04:01:55.109Z https://www.daylight.com/dayhtml/doc/theory/theory.smiles.html

[3] OpenSMILES specification, 2021-09-21T17:41:48.000Z, 2025-03-28T04:02:15.762Z https://opensmiles.org/opensmiles.html

[2] SMILES記法は化学構造の線形表記法 | 化学の新しいカタチ, 2025-03-28T04:05:03.000Z https://future-chem.com/smiles-smarts/