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Isobutylamine

C4H11N, 73.139 g/mol. Its structure, the values that were measured, the values that were calculated, and where each one came from.

verified recordOrganic — primary amine8 measured properties1 documented reactions

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
C₄H₁₁N
Molecular weight
73.139 g/mol
Exact mass
73.089149 g/mol
IUPAC name
2-methylpropan-1-amine
SMILES
CC(C)CN
InChI
InChI=1S/C4H11N/c1-4(2)3-5/h4H,3,5H2,1-2H3
InChIKey
KDSNLYIMUZNERS-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
154 to 156 °F at 760 mmHg (NTP, 1992)measured · CAMEO Chemicals
68-69 °Cmeasured · Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Melting Point
-121 °F (NTP, 1992)measured · CAMEO Chemicals
-85 °Cmeasured · Hazardous Substances Data Bank (HSDB)
Density
0.739 at 68 °F (USCG, 1999) - Less dense than water; will floatmeasured · CAMEO Chemicals
0.724 at 25 °C/4 °Cmeasured · Hazardous Substances Data Bank (HSDB)
Solubility
Very soluble (NTP, 1992)measured · CAMEO Chemicals
Very sol in alcohol, ether; Sol in acetone, benzenemeasured · Hazardous Substances Data Bank (HSDB)
Vapor Pressure
100 mmHg at 65.8 °F (NTP, 1992)measured · CAMEO Chemicals
138.0 [mmHg]measured · Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
LogP
log Kow = 0.73measured · Hazardous Substances Data Bank (HSDB)
0.73measured · Human Metabolome Database (HMDB)
Flash Point
15 °F (NTP, 1992)measured · CAMEO Chemicals
15 °F (-9 °C) (closed cup)measured · Hazardous Substances Data Bank (HSDB)
Refractive Index
Index of refraction: 1.3988 at 17 °C/Dmeasured · O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. 13th Edition, Whitehouse Station, NJ: Merck and Co., Inc., 2001., p. 921
1.391-1.397measured · 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
73.14 g/molcalculated · reference compound database
Average mass of one molecule, from reference compound database.
Exact mass
73.089149355 Dacalculated · reference compound database
Mass of the most common isotopic form.
XLogP3
0.7calculated · reference compound database
Estimated oil/water partition, computed by reference compound database.
Polar surface area
26 Ųcalculated · reference compound database
Polar surface area as computed by reference compound database.
Complexity
17calculated · reference compound database
A rough measure of how intricate the structure is.
H-bond donors
1calculated · reference compound database
H-bond acceptors
1calculated · reference compound database
logP
0.6011calculated · chemistry engine
Estimated preference for oil over water. Higher means more oil-like.
Topological polar surface area
26.02 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
1calculated · chemistry engine
Single bonds the molecule can freely twist around.
Molar refractivity
23.8924 cm³/molcalculated · chemistry engine
Relates to the molecule's polarisability.
Fraction sp³ carbons
1calculated · chemistry engine
Share of carbon atoms with tetrahedral bonding.
QED drug-likeness
0.483calculated · 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
5
Total atoms, hydrogen included
16
Rings
0
Aromatic rings
0
Stereocentres
0
Formal charge
0

Functional groups

  • Primary amine

    Nitrogen bonded to one carbon and two hydrogens.

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.

Other names for it

The systematic name on this record is 2-methylpropan-1-amine.

The sources also call it 2-methylpropan-1-amine, 1-Amino-2-methylpropane, 2-Methylpropylamine, Valamine, Monoisobutylamine, 1-Propanamine, 2-methyl-, iso-Butylamine, 2-Methylpropanamine, I-Butylamine, 2-Methyl-1-propanamine, 3-Methyl-2-propylamine.

Structurally related

Nothing structurally close to Isobutylamine has a page here yet.

Seen alongside it in reaction records

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.