SMILES (Simplified Molecular Input Line Entry Specification)

Q

What Is SMILES?

✍: FYIcenter.com

A

SMILES (Simplified Molecular Input Line Entry Specification) is a line notation for describing the structure of a molecule using ASCII strings.

The original SMILES specification was initiated by David Weininger at the USEPA Mid-Continent Ecology Division Laboratory in Duluth in the 1980s.

It was later modified and extended by Daylight Chemical Information Systems.

Examples of SMILES presentation of molecules:

Aspirin: O=C(C)Oc1ccccc1C(=O)O
Nitrobenzene: c1c(N(=O)=O)cccc1
Nicotine: CN1CCC[C@H]1c2cccnc2
Thiamine: OCCc1c(C)[n+](cs1)Cc2cnc(C)nc2N

For more information, see "SMILES - A Simplified Chemical Language" at daylight.com.

You can use our "JSME SMILES to SDF/Mol Online Converter" to convert any given SMILES presentations into molecule structures.

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Molecule FYI-1002030
Molecule Summary: ID: FYI-1002030 Names: METHANE; InChIKey: VNWKTOKETHGBQD-UHFFFAOYSA-N SMILES: C Received at FYIcenter.com on: 2023-01-19 2023-01-20, 3677🔥, 0💬

Molecule FYI-1002021
Molecule Summary: ID: FYI-1002021 Names: InChIKey: FQMIAEWUVYWVNB-UHFFFAOYSA-N SMILES: C=CC(=O)OCCC(C)OC(=O)C=C Received at FYIcenter.com on: 2023-01-18 2023-01-18, 2570🔥, 0💬

Molecule FYI-1002022
Molecule Summary: ID: FYI-1002022 Names: InChIKey: TUZNCNKIMLFQLX-UHFFFAOYSA-N SMILES: COC(=O)c1coc(=O)c2cc(OC)c(OC)c c12Received at FYIcenter.com on: 2023-01-18 2023-01-18, 2441🔥, 0💬

Molecule FYI-1002020
Molecule Summary: ID: FYI-1002020 Names: InChIKey: BAWFJGJZGIEFAR-NNYOXOHSSA-N SMILES: NC(=O)c5ccc[n+]([C@@H]4O[C@H]( COP(=O)([O-])OP(=O)(O)OC[C@H]3 O[C@@H](n2cnc1c(N)ncnc12)[C@H] (O)[C@@H]3O)[C@@H](O)[C@H]4O)c 5Received at FYIcenter.com on: 2023-01-18 2023-01-18, 2350🔥, 0💬

Molecule FYI-1002023
Molecule Summary: ID: FYI-1002023 Names: InChIKey: FSKZJSCMTMYMPQ-UHFFFAOYSA-N SMILES: O=C(O)c2ccc(CNC(=O)OCc1ccccc1) cn2Received at FYIcenter.com on: 2023-01-18 2023-01-18, 2288🔥, 0💬

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SMILES (Simplified Molecular Input Line Entry Specification)
What Is SMILES? SMILES (Simplified Molecular Input Line Entry Specification) is a line notation for describing the structure of a molecule using ASCII strings. The original SMILES specification was initiated by David Weininger at the USEPA Mid-Continent Ecology Division Laboratory in Duluth in the 1... 2023-01-22, 1790🔥, 0💬

InChI and InChIKey
What are InChI and InChIKey? InChI, short for International Chemical Identifier, is a textual identifier for molecules developed by the International Union of Pure and Applied Chemistry (IUPAC) and National Institute of Standards and Technology (NIST). Examples of InChI presentation of molecules: As... 2023-01-22, 1432🔥, 0💬

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