2-Thiopheneacetic acid

An aromatic carboxylic acid, C6H6O2S, 142.179 g/mol.

verified recordOrganic — aromatic carboxylic acid

Identifiers

Molecular formula: C₆H₆O₂S
Molecular weight: 142.179 g/mol
Exact mass: 142.00885 g/mol
SMILES: O=C(O)Cc1cccs1
InChI: InChI=1S/C6H6O2S/c7-6(8)4-5-2-1-3-9-5/h1-3H,4H2,(H,7,8)
InChIKey: SMJRBWINMFUUDS-UHFFFAOYSA-N

Open in ReactionLens Use in reaction prediction

Calculated properties

Derived from the structure, not from a sample; kept apart from the measurements above.

logP: 1.3752calculated · chemistry engine; Estimated preference for oil over water. Higher means more oil-like.
Topological polar surface area: 37.3 Å²calculated · chemistry engine; Surface area from polar atoms; relates to how easily a molecule crosses membranes.
H-bond donors: 1calculated · chemistry engine; Atoms that can donate a hydrogen bond.
H-bond acceptors: 2calculated · chemistry engine; Atoms that can accept a hydrogen bond.
Rotatable bonds: 2calculated · chemistry engine; Single bonds the molecule can freely twist around.
Molar refractivity: 35.6588 cm³/molcalculated · chemistry engine; Relates to the molecule's polarisability.
Fraction sp³ carbons: 0.1667calculated · chemistry engine; Share of carbon atoms with tetrahedral bonding.
QED drug-likeness: 0.6768calculated · chemistry engine; Quantitative estimate of drug-likeness (0–1).

What it is made of

Elements

C Carbon6 atoms · 50.7% by mass
S Sulfur1 atom · 22.6% by mass
O Oxygen2 atoms · 22.5% by mass
H Hydrogen6 atoms · 4.3% by mass

Percentages are of the molecular weight above, worked out the same way the molar mass calculator does it.

Structure

Heavy atoms, hydrogen excluded: 9
Total atoms, hydrogen included: 15
Rings: 1
Aromatic rings: 1
Stereocentres: 0
Formal charge: 0

Functional groups

Carboxylic acid
A carbon double-bonded to oxygen and bonded to an –OH group; acidic.
Aromatic ring (five-membered)
A flat five-membered ring with delocalised electrons, such as furan, thiophene or pyrrole.

Matched by structural pattern, not by a measurement.

The molecule in three dimensions

Rotate and inspect the atoms. Loaded only when you ask, so the page stays light.

The drawing above is a diagram of what is bonded to what. A molecule is not flat, and the model here is one low-energy shape generated from the connectivity — useful for seeing which groups can reach each other, and not a measured structure. A real sample is a population of conformations, interconverting.

Reactions it appears in

No documented reaction with a written procedure and a source involves 2-Thiopheneacetic acid yet.

Other names for it

No systematic name is recorded.

The sources also call it 2-(thiophen-2-yl)acetic acid, 2-Thienylacetic acid, THIOPHENE-2-ACETIC ACID, 2-thiophen-2-ylacetic acid, Thiopheneacetic acid, 2-(2-thienyl)acetic acid, 2-THIOPHENE ACETIC ACID, thiophen-2-ylacetic acid, (Thien-2-yl)acetic acid, 2-THENYLACETIC ACID, thienylactic acid, thienylacetic acid.

Structurally related

Nothing structurally close to 2-Thiopheneacetic acid has a page here yet.

Seen alongside it in reaction records

Molecules that appear in the same recorded reactions as 2-Thiopheneacetic acid. This says nothing about structure: most of them are the bases, solvents, ligands and catalysts the chemistry needed, and they are here because somebody put them in the same flask.

1,8-Diazabicyclo(5.4.0)undec-7-ene

used as a reactant

C₉H₁₆N₂, 152.241 g/mol.

Where these values came from

chemistry engine
structure perception

compound record.

What this page does not claim

Identifiers are copied from the source record, measured values are reported as published, and calculated values are marked as calculated. Nothing here is a hazard, purity or handling assessment — how the library is checked.