2-Chlorobenzoic Acid

An aromatic carboxylic acid, C7H5ClO2, 156.568 g/mol. Boiling point Sublimes, melting point 142 °C, as published.

verified recordOrganic — aromatic carboxylic acid6 measured properties

Identifiers

Molecular formula: C₇H₅ClO₂
Molecular weight: 156.568 g/mol
Exact mass: 155.997807 g/mol
IUPAC name: 2-chlorobenzoic acid
SMILES: O=C(O)c1ccccc1Cl
InChI: InChI=1S/C7H5ClO2/c8-6-4-2-1-3-5(6)7(9)10/h1-4H,(H,9,10)
InChIKey: IKCLCGXPQILATA-UHFFFAOYSA-N

Open in ReactionLens Use in reaction prediction

Measured properties

Published measurements, each with its source. Two readings of one property are both shown, in the units each used.

Boiling Point: Sublimes (NTP, 1992)measured · National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.
Melting Point: 288 °F (NTP, 1992)measured · National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.; 142 °Cmeasured · Budavari, S. (ed.). The Merck Index - Encyclopedia of Chemicals, Drugs and Biologicals. Rahway, NJ: Merck and Co., Inc., 1989., p. 328
Solubility: less than 1 mg/mL at 68 °F (NTP, 1992)measured · National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.; SOL IN 900 PARTS COLD WATER; MORE SOL IN HOT WATER; FREELY SOL IN ALCOHOL, ETHER.measured · Budavari, S. (ed.). The Merck Index - Encyclopedia of Chemicals, Drugs and Biologicals. Rahway, NJ: Merck and Co., Inc., 1989., p. 328; SOL IN ACETONE, BENZENEmeasured · Weast, R.C. (ed.) Handbook of Chemistry and Physics. 69th ed. Boca Raton, FL: CRC Press Inc., 1988-1989., p. C-187; SOLUBLE IN METHANOLmeasured · Sax, N.I. and R.J. Lewis, Sr. (eds.). Hawley's Condensed Chemical Dictionary. 11th ed. New York: Van Nostrand Reinhold Co., 1987., p. 263; 2087 mg/l at 25 °C in watermeasured · Seidell A; Solubilities of Organic Compounds NY,NY: Van Nostrand Co (1941)
Density: 1.544 at 68 °F (NTP, 1992) - Denser than water; will sinkmeasured · National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.; 1.544 AT 20 °C/4 °Cmeasured · Budavari, S. (ed.). The Merck Index - Encyclopedia of Chemicals, Drugs and Biologicals. Rahway, NJ: Merck and Co., Inc., 1989., p. 328
Vapor Pressure: 0.00066 [mmHg]measured · reference compound database; 6.6X10-4 mm Hg at 25 °C (extrapolated)measured · Hine J, Mookerjee PK; J Org Chem 40: 292-98 (1975)
LogP: log Kow= 2.05measured · Hansch C, Leo AJ; Medchem Project Issue No. 26 Claremont, CA: Pomona College (1985); 2.21measured · reference compound database

Calculated properties

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

Molecular weight: 156.56 g/molcalculated · reference compound database; Average mass of one molecule, from reference compound database.
Exact mass: 155.9978071 Dacalculated · reference compound database; Mass of the most common isotopic form.
XLogP3: 2.1calculated · reference compound database; Estimated oil/water partition, computed by reference compound database.
Polar surface area: 37.3 Å²calculated · reference compound database; Polar surface area as computed by reference compound database.
Complexity: 136calculated · reference compound database; A rough measure of how intricate the structure is.
H-bond donors: 1calculated · reference compound database
H-bond acceptors: 2calculated · reference compound database
logP: 2.0382calculated · 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: 1calculated · chemistry engine; Atoms that can accept a hydrogen bond.
Rotatable bonds: 1calculated · chemistry engine; Single bonds the molecule can freely twist around.
Molar refractivity: 38.4113 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: 0.6758calculated · chemistry engine; Quantitative estimate of drug-likeness (0–1).

What it is made of

Elements

C Carbon7 atoms · 53.7% by mass
Cl Chlorine1 atom · 22.6% by mass
O Oxygen2 atoms · 20.4% by mass
H Hydrogen5 atoms · 3.2% 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: 10
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.
Halide (C–X)
A halogen atom attached to carbon.
Aromatic ring
A flat six-membered ring with delocalised electrons.

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-Chlorobenzoic Acid yet.

Other names for it

The systematic name on this record is 2-chlorobenzoic acid.

The sources also call it O-CHLOROBENZOIC ACID, Benzoic acid, 2-chloro-, 2-Cba, Benzoic acid, o-chloro-, Kyselina o-chlorbenzoova, DTXSID4024771, NSC-15042, DTXCID304771, 8P0867193V, CHEBI:30793, R300100.

Structurally related

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

Where these values came from

reference compound database8374
compound record
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.