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Isovaleric Acid

C5H10O2, 102.133 g/mol. Its structure, the values that were measured, the values that were calculated, and where each one came from.

verified recordOrganic — carboxylic acid8 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
C₅H₁₀O₂
Molecular weight
102.133 g/mol
Exact mass
102.06808 g/mol
IUPAC name
3-methylbutanoic acid
SMILES
CC(C)CC(=O)O
InChI
InChI=1S/C5H10O2/c1-4(2)3-5(6)7/h4H,3H2,1-2H3,(H,6,7)
InChIKey
GWYFCOCPABKNJV-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.

Boiling Point
176.5 °Cmeasured · DrugBank
176.5 °C @ 760 MM HGmeasured · Hazardous Substances Data Bank (HSDB)
Melting Point
-29.3 °Cmeasured · DrugBank
-29.3 °Cmeasured · Hazardous Substances Data Bank (HSDB)
Density
0.931 @ 20 °C/4 °Cmeasured · Hazardous Substances Data Bank (HSDB)
0.923-0.928measured · Joint FAO/WHO Expert Committee on Food Additives (JECFA)
Solubility
40700 mg/L (at 20 °C)measured · DrugBank
SOL IN 24 PARTS WATER; SOL IN ALCOHOL, ETHER, CHLOROFORMmeasured · Hazardous Substances Data Bank (HSDB)
Vapor Pressure
0.44 [mmHg]measured · Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
0.44 mm Hg at 25 °Cmeasured · Hazardous Substances Data Bank (HSDB)
LogP
1.16measured · DrugBank
Log Kow = 1.16measured · Hazardous Substances Data Bank (HSDB)
Flash Point
70 °Cmeasured · Hazardous Substances Data Bank (HSDB)
Refractive Index
Index of refraction = 1.4033 at 20 °C/Dmeasured · Lide, D.R. (ed.). CRC Handbook of Chemistry and Physics. 76th ed. Boca Raton, FL: CRC Press Inc., 1995-1996., p. 3-98
1.401-1.405measured · reference compound database

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
102.13 g/molcalculated · reference compound database
Average mass of one molecule, from reference compound database.
Exact mass
102.068079557 Dacalculated · reference compound database
Mass of the most common isotopic form.
XLogP3
1.2calculated · reference compound database
Estimated oil/water partition, computed by reference compound database.
Polar surface area
37.3 Ųcalculated · reference compound database
Polar surface area as computed by reference compound database.
Complexity
66calculated · 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
1.1171calculated · chemistry engine
Estimated preference for oil over water. Higher means more oil-like.
Topological polar surface area
37.3 Ųcalculated · 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
2calculated · chemistry engine
Single bonds the molecule can freely twist around.
Molar refractivity
27.0908 cm³/molcalculated · chemistry engine
Relates to the molecule's polarisability.
Fraction sp³ carbons
0.8calculated · chemistry engine
Share of carbon atoms with tetrahedral bonding.
QED drug-likeness
0.5668calculated · 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
7
Total atoms, hydrogen included
17
Rings
0
Aromatic rings
0
Stereocentres
0
Formal charge
0

Functional groups

  • Carboxylic acid

    A carbon double-bonded to oxygen and bonded to an –OH group; acidic.

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 Isovaleric Acid yet.

Other names for it

The systematic name on this record is 3-methylbutanoic acid.

The sources also call it 3-Methylbutanoic acid, Isopentanoic acid, 3-Methylbutyric acid, Isopropylacetic acid, Delphinic acid, Butanoic acid, 3-methyl-, Isovalerianic acid, Isobutylformic acid, beta-Methylbutyric acid, 3-methyl-butanoic acid, Acetic acid, isopropyl-.

Structurally related

Nothing structurally close to Isovaleric Acid has a page here yet.

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.