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3-Methylbutanal

An aldehyde, C5H10O, 86.134 g/mol. Boiling point 92.5 °C, melting point -51 °C, as published.

verified record, Organic — aldehyde, 9 measured properties

Identifiers

Molecular formula
C₅H₁₀O
Molecular weight
86.134 g/mol
Exact mass
86.073165 g/mol
IUPAC name
3-methylbutanal
SMILES
CC(C)CC=O
InChI
InChI=1S/C5H10O/c1-5(2)3-4-6/h4-5H,3H2,1-2H3
InChIKey
YGHRJJRRZDOVPD-UHFFFAOYSA-N

Measured properties

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

Boiling Point
198.5 °F at 760 mmHg (USCG, 1999)measured · CAMEO Chemicals
92.5 °Cmeasured · Hazardous Substances Data Bank (HSDB)
Melting Point
-60 °F (USCG, 1999)measured · CAMEO Chemicals
-51 °Cmeasured · Hazardous Substances Data Bank (HSDB)
Density
0.785 at 68 °F (USCG, 1999) - Less dense than water; will floatmeasured · CAMEO Chemicals
0.7977 g/cu cm at 20 °Cmeasured · Hazardous Substances Data Bank (HSDB)
Solubility
Slightly soluble in water; soluble in ethanol, ethyl ethermeasured · Hazardous Substances Data Bank (HSDB)
Miscible with alcohol, ethermeasured · Hazardous Substances Data Bank (HSDB)
Vapor Pressure
50.0 [mmHg]measured · Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
50 mm Hg at approx 25 °Cmeasured · Hazardous Substances Data Bank (HSDB)
LogP
1.31measured · ILO-WHO International Chemical Safety Cards (ICSCs)
1.3measured · SangsterLogP
Flash Point
55 °F (est.) (USCG, 1999)measured · CAMEO Chemicals
48 °F (9 °C) open cupmeasured · Hazardous Substances Data Bank (HSDB)
Viscosity
0.58 mPa.S at 20 °Cmeasured · Gerhartz, W. (exec ed.). Ullmann's Encyclopedia of Industrial Chemistry. 5th ed.Vol A1: Deerfield Beach, FL: VCH Publishers, 1985 to Present., p. VA1: 323 (1985)
0.725 mm²/s at 20 °Cmeasured · reference compound database
Refractive Index
Index of refraction: 1.3902 at 20 °C/Dmeasured · Lide, D.R. CRC Handbook of Chemistry and Physics 88TH Edition 2007-2008. CRC Press, Taylor & Francis, Boca Raton, FL 2007, p. 3-342
1.387-1.408measured · reference compound database

Calculated properties

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

Molecular weight
86.13 g/molcalculated · reference compound database
Average mass of one molecule, from reference compound database.
Exact mass
86.073164938 Dacalculated · reference compound database
Mass of the most common isotopic form.
XLogP3
1calculated · reference compound database
Estimated oil/water partition, computed by reference compound database.
Polar surface area
17.1 Ųcalculated · reference compound database
Polar surface area as computed by reference compound database.
Complexity
39calculated · 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
1.2314calculated · chemistry engine
Estimated preference for oil over water. Higher means more oil-like.
Topological polar surface area
17.07 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
2calculated · chemistry engine
Single bonds the molecule can freely twist around.
Molar refractivity
25.519 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
0.4618calculated · 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
16
Rings
0
Aromatic rings
0
Stereocentres
0
Formal charge
0

Functional groups

  • Aldehyde

    A carbonyl at the end of a chain, bonded to hydrogen.

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 3-Methylbutanal yet.

Other names for it

The systematic name on this record is 3-methylbutanal.

The sources also call it ISOVALERALDEHYDE, 3-Methylbutyraldehyde, Isovaleral, Isopentaldehyde, Butanal, 3-methyl-, Isoamylaldehyde, Isopentanal, Isovalerylaldehyde, Isovaleric aldehyde, beta-Methylbutanal, Isoamyl aldehyde.

Structurally related

Nothing structurally close to 3-Methylbutanal has a page here yet.

Where these values came from

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.