Amitrole

An aromatic amine, C2H4N4, 84.082 g/mol. Melting point 159 °C, density 1.138 at 20 °C, as published.

verified recordOrganic — aromatic amine5 measured properties

Identifiers

Molecular formula: C₂H₄N₄
Molecular weight: 84.082 g/mol
Exact mass: 84.043596 g/mol
IUPAC name: 1H-1,2,4-triazol-5-amine
SMILES: Nc1nc[nH]n1
InChI: InChI=1S/C2H4N4/c3-2-4-1-5-6-2/h1H,(H3,3,4,5,6)
InChIKey: KLSJWNVTNUYHDU-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.

Melting Point: 318 °F (NTP, 1992)measured · CAMEO Chemicals; 159 °Cmeasured · Hazardous Substances Data Bank (HSDB)
Density: 1.138 at 68 °F (NTP, 1992) - Denser than water; will sinkmeasured · CAMEO Chemicals; 1.138 at 20 °Cmeasured · Hazardous Substances Data Bank (HSDB)
Solubility: greater than or equal to 100 mg/mL at 63.5 °F (NTP, 1992)measured · CAMEO Chemicals; 2.6X10+5 mg/L in ethanol at 75 °C. Slightly soluble in chloroform, acetonitrile, and ethyl acetate; and insoluble in acetone, ether, hydrocarbonsmeasured · Hazardous Substances Data Bank (HSDB)
Vapor Pressure: 4.41e-07 mmHg at 68 °F (NTP, 1992)measured · CAMEO Chemicals; 0.00000044 [mmHg]measured · Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
LogP: log Kow= -0.97measured · Hazardous Substances Data Bank (HSDB); -0.97measured · ILO-WHO International Chemical Safety Cards (ICSCs)

Calculated properties

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

Molecular weight: 84.08 g/molcalculated · reference compound database; Average mass of one molecule, from reference compound database.
Exact mass: 84.043596145 Dacalculated · reference compound database; Mass of the most common isotopic form.
XLogP3: -0.4calculated · reference compound database; Estimated oil/water partition, computed by reference compound database.
Polar surface area: 67.6 Å²calculated · reference compound database; Polar surface area as computed by reference compound database.
Complexity: 44calculated · reference compound database; A rough measure of how intricate the structure is.
H-bond donors: 2calculated · reference compound database
H-bond acceptors: 3calculated · reference compound database
logP: -0.6131calculated · chemistry engine; Estimated preference for oil over water. Higher means more oil-like.
Topological polar surface area: 67.59 Å²calculated · chemistry engine; Surface area from polar atoms; relates to how easily a molecule crosses membranes.
H-bond donors: 2calculated · chemistry engine; Atoms that can donate a hydrogen bond.
H-bond acceptors: 3calculated · chemistry engine; Atoms that can accept a hydrogen bond.
Rotatable bonds: 0calculated · chemistry engine; Single bonds the molecule can freely twist around.
Molar refractivity: 20.7951 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: 0.4402calculated · chemistry engine; Quantitative estimate of drug-likeness (0–1).

What it is made of

Elements

N Nitrogen4 atoms · 66.6% by mass
C Carbon2 atoms · 28.6% by mass
H Hydrogen4 atoms · 4.8% 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: 6
Total atoms, hydrogen included: 10
Rings: 1
Aromatic rings: 1
Stereocentres: 0
Formal charge: 0

Functional groups

Primary aromatic amine
An –NH2 group attached directly to an aromatic ring, as in aniline. Much less basic than an alkyl amine, because the lone pair is delocalised into the ring.
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 Amitrole yet.

Other names for it

The systematic name on this record is 1H-1,2,4-triazol-5-amine.

The sources also call it 3-amino-1,2,4-triazole, 1H-1,2,4-Triazol-5-amine, 1H-1,2,4-Triazol-3-amine, Aminotriazole, 3-Aminotriazole, Amitrol, Amizol, 3-Amino-1H-1,2,4-triazole, 3-Amino-s-triazole, Weedazol, Amerol.

Structurally related

Nothing structurally close to Amitrole has a page here yet.

Where these values came from

reference compound database1639
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.