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2-Bromothiophene

C4H3BrS, 163.039 g/mol. Its structure, the values that were measured, the values that were calculated, and where each one came from.

verified recordOrganic — aromatic organohalide1 measured properties

Drawn from the SMILES. It shows how the atoms are connected — not a photograph of a molecule, and not its shape in space.

Identifiers

Molecular formula
C₄H₃BrS
Molecular weight
163.039 g/mol
Exact mass
161.913883 g/mol
IUPAC name
2-bromothiophene
SMILES
Brc1cccs1
InChI
InChI=1S/C4H3BrS/c5-4-2-1-3-6-4/h1-3H
InChIKey
TUCRZHGAIRVWTI-UHFFFAOYSA-N

Both are open without an account.

Measured properties

Values somebody obtained from a sample and published. Where two sources report the same property they are both shown, in the units each used — a disagreement between them is information, and averaging it away would be inventing a number neither one gave.

LogP
2.75measured · SangsterLogP

Calculated properties

Derived from the structure rather than from a sample. These are reproducible and they are not measurements: a calculated partition coefficient and a measured one can differ by a long way, and where both exist they are listed apart on purpose.

Molecular weight
163.04 g/molcalculated · reference compound database
Average mass of one molecule, from reference compound database.
Exact mass
161.91388 Dacalculated · reference compound database
Mass of the most common isotopic form.
XLogP3
2.8calculated · reference compound database
Estimated oil/water partition, computed by reference compound database.
Polar surface area
28.2 Ųcalculated · reference compound database
Polar surface area as computed by reference compound database.
Complexity
46calculated · reference compound database
A rough measure of how intricate the structure is.
H-bond donors
0calculated · reference compound database
H-bond acceptors
1calculated · reference compound database
logP
2.5106calculated · chemistry engine
Estimated preference for oil over water. Higher means more oil-like.
Topological polar surface area
0 Ųcalculated · chemistry engine
Surface area from polar atoms; relates to how easily a molecule crosses membranes.
H-bond donors
0calculated · chemistry engine
Atoms that can donate a hydrogen bond.
H-bond acceptors
1calculated · chemistry engine
Atoms that can accept a hydrogen bond.
Rotatable bonds
0calculated · chemistry engine
Single bonds the molecule can freely twist around.
Molar refractivity
32.019 cm³/molcalculated · chemistry engine
Relates to the molecule's polarisability.
Fraction sp³ carbons
0calculated · chemistry engine
Share of carbon atoms with tetrahedral bonding.
QED drug-likeness
0.5507calculated · chemistry engine
Quantitative estimate of drug-likeness (0–1).

What it is made of

Elements

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

Structure

Heavy atoms, hydrogen excluded
6
Total atoms, hydrogen included
9
Rings
1
Aromatic rings
1
Stereocentres
0
Formal charge
0

Functional groups

  • Halide (C–X)

    A halogen atom attached to carbon.

  • 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-Bromothiophene yet.

Other names for it

The systematic name on this record is 2-bromothiophene.

The sources also call it Thiophene, 2-bromo-, 2-Thienyl bromide, GFF929NUW7, NSC 4456, NSC-4456, EINECS 213-699-4, DTXSID4061389, 2Thienyl bromide, Thiophene, 2bromo, RefChem:467332, DTXCID7032509.

Structurally related

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

Seen alongside it in reaction records

Molecules that appear in the same recorded reactions as 2-Bromothiophene. 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.

Where these values came from

compound record.

What this page does not claim

The identifiers are what the source record holds, copied rather than recomputed. Measured values are reported as their source gave them, units and all; calculated values are marked as calculated and are not measurements. Where a field is absent the page says so, because a blank cell reads as a zero and a guessed value reads as a fact.

Nothing here is a hazard assessment, a purity statement or advice about handling a sample. A flash point quoted from a safety database is a number somebody published, not a judgement by us about whether this molecule is safe for what you intend.