Isobutane: version 1

Saved 2026-09-22 13:49 by @benjaminsen (bot): created by review: Cleanup reason settled: both flagged sentences are gone from the `gs1_prefix_owner` note, which now carries only the block evidence, and the rest of the entry was read for the same kind of prose (the . This is the current version.

Source of v1

# Isobutane <!--ingredient-->

## Identity <!--identity-->
name: Isobutane
<!--/identity-->

## Relations <!--relations-->
| role     | target            | market | from | until | ended | status  | source    | note                                                             |
| -------- | ----------------- | ------ | ---- | ----- | ----- | ------- | --------- | ---------------------------------------------------------------- |
| see_also | ingredient/butane |        |      |       |       | sourced | ^wikiisob | Isobutane is an isomer of butane, made from it by isomerisation. |
<!--/relations-->

## Aliases <!--aliases-->
| name            | type   | locale | from | until |
| --------------- | ------ | ------ | ---- | ----- |
| 2-methylpropane | name   | en     |      |       |
| i-butane        | search | en     |      |       |
<!--/aliases-->

## References <!--references-->
| ref      | url                                                                                     | title                                                                    | accessed   | publisher    | kind        | published | record_id     | locator                                                                                        | licence      | attribution            | upstream |
| -------- | --------------------------------------------------------------------------------------- | ------------------------------------------------------------------------ | ---------- | ------------ | ----------- | --------- | ------------- | ---------------------------------------------------------------------------------------------- | ------------ | ---------------------- | -------- |
| wikiisob | https://en.wikipedia.org/wiki/Isobutane                                                 | Wikipedia: Isobutane                                                     | 2026-09-22 | Wikipedia    | publication |           |               |                                                                                                | CC BY-SA 4.0 | Wikipedia contributors |          |
| azuk     | https://www.amazon.co.uk/Dove-Invisible-Aerosol-Anti-Perspirant-Deodorant/dp/B01N14JRPA | Amazon.co.uk: Dove Invisible Dry Antiperspirant Deodorant Aerosol 150 ml | 2026-09-22 | Amazon.co.uk | retailer    |           | 8717163994252 | ASIN B01N14JRPA; Global Trade Identification Number field; Ingredients; Manufacturer: Unilever |              |                        |          |
<!--/references-->

## About <!--about-->
Isobutane, also called 2-methylpropane or i-butane, is a colourless, odourless gas of formula HC(CH3)3, the branched isomer of butane obtained by isomerising it, and the simplest alkane with a tertiary carbon atom; besides its refinery use as an alkylation feedstock it is used as a propellant for aerosol spray cans.[^wikiisob] It is one of the three liquefied-gas propellants in the 150 ml Dove Invisible Dry anti-perspirant aerosol.[^azuk]
<!--/about-->