tert-Octylamine
[CAS 107-45-9]

Identification

• Classification: Organic raw materials >> Amino compound >> Acyclic monoamines, polyamines and their derivatives and salts
• Name: tert-Octylamine
• Synonyms: 1,1,3,3-Tetramethylbutylamine; 2,4,4-Trimethyl-2-pentanamine; 2-Amino-2,4,4-trimethylpentane
• Molecular Formula: C₈H₁₉N
• Molecular Weight: 129.24
• CAS Registry Number: 107-45-9
• EC Number: 203-491-1
• SMILES: CC(C)(C)CC(C)(C)N

Properties

• Density: 0.8±0.1 g/cm³ Calc.^*
• Melting point: -67 °C (Expl.)
• Boiling point: 143.4±8.0 °C 760 mmHg (Calc.)^*, 137 - 143 °C (Expl.)
• Flash point: 32.2 °C (Calc.)^*, 33 °C (Expl.)
• Solubility: water insoluble (Expl.)
• Index of refraction: 1.431 (Calc.)^*, 1.424 (Expl.)
• Melting point: -67 °C
• Boiling point: 137-143 °C
• Refractive index: 1.4235-1.4255
• Flash point: 32 °C
• Water solubility: insoluble

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software.

Safety Data

• Hazard Symbols: GHS02;GHS05;GHS06;GHS07;GHS09 DangerGHS02;GHS05
• Risk Statements: H226-H290-H301-H302-H314-H318-H411
• Safety Statements: P210-P233-P234-P240-P241-P242-P243-P260-P264-P264+P265-P270-P273-P280-P301+P316-P301+P317-P301+P330+P331-P302+P361+P354-P303+P361+P353-P304+P340-P305+P354+P338-P316-P317-P321-P330-P363-P370+P378-P390-P391-P403+P235-P405-P406-P501

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Flammable liquids	Flam. Liq.	3	H226
Acute toxicity	Acute Tox.	4	H302
Substances or mixtures corrosive to metals	Met. Corr.	1	H290
Serious eye damage	Eye Dam.	1	H318
Skin corrosion	Skin Corr.	1C	H314
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H411
Skin corrosion	Skin Corr.	1B	H314
Acute toxicity	Acute Tox.	3	H301
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H412
Skin corrosion	Skin Corr.	1A	H314
Chronic hazardous to the aquatic environment	Aquatic Chronic	3	H412

• Transport Information: UN 2734

chemBlink Chemical Story

tert-Octylamine is a highly branched primary amine. Its nitrogen retains ordinary amine chemistry, but the bulky carbon framework changes sterics, hydrophobicity, packing, and the physical properties of salts made from it.

This makes the compound useful as a specialty intermediate rather than simply a branched substitute for straight-chain octylamine. Converting the amine into ammonium salts places an ionic head group on a bulky hydrophobic skeleton, a useful motif in surfactant-like and other functional molecules.

Its story is that function belongs to more than a functional group. The amine determines what reactions are possible, while the three-dimensional carbon framework influences how easily those reactions occur and how the resulting material behaves.

References:
PubChem. tert-Octylamine, CAS 107-45-9.
ECHA. 1,1,3,3-Tetramethylbutylamine substance information.

Read more stories