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Compound sheet · CK-6405

Aroma molecule · alcohol

2-methyl-2-butanol

Smells ofpungent

Found in 5 ingredients. We hold no measured concentration for it in any of them yet, so we cannot say where it is strong enough to smell.

Working on a formulation or a product line? This compound data is available by API for R&D teams.

2D structure of 2-methyl-2-butanol, C5H12O
2D structure · PubChem 6405
Formula
C5H12O
Mass
88.15 g/mol
CAS
75-85-4
PubChem
6405
FEMA
5030 · GRAS · verify
Threshold
25,690 ppb
Class
alcohol
Status
Aroma-active

01How little it takes

  • in a foodpapers disagree 320

ppb, log scale · tick = median of published values, bar = full range, from open-access paper tables (not reviewed)

02Where it turns up

  • Fruit3
  • Vegetables1
  • Herbs & spices1

of the 5 ingredients that contain it, by food group

03What it travels with

(+)-delta-cadinene 5 (+)-neomenthol 5 (-)-matairesinol 5 (e)-β-farnesene 5 1,2-benzenediol 5 2-methyl-2…

line weight = ingredients carrying both, of 5 · only molecules found with it at least 1.5× as often as across all foods

What does 2-methyl-2-butanol smell like?

Sources describe it as pungent.

Which foods contain 2-methyl-2-butanol?

We list 5 ingredients that contain it, but presence is not the same as smell. What matters is how much is there compared with how little it takes to notice it. That ratio is the odour activity value (OAV): above 1, you can smell it.

Found in

Measured foods first, then real food profiles, then thin or composite records (marked). The figure beside each is how many compounds that ingredient has in total, not the amount of 2-methyl-2-butanol in it. ✓n = sources that recorded the link.

How strong is 2-methyl-2-butanol?

Our working odour threshold is 25690.47 ppb.

Thresholds in published tables

MediumMedianRangeValuesPapersPapers agree?
air 2.65e+04 µg/L air 2.65e+04–2.65e+04 31 one paper
food matrix 320 ppb 320–320 11 one paper

Numbers printed in open-access papers, grouped by the medium the table states. Median and full range; “agree” means two or more papers whose middle 80% of values sit within 100×. Not reviewed.

Volatility
high

What is it found with?

Of the 5 ingredients that carry 2-methyl-2-butanol, 5 also carry (+)-delta-cadinene, 5 (+)-neomenthol and 5 (-)-matairesinol. These are the most frequent companions among molecules that turn up with 2-methyl-2-butanol at least 1.5 times as often as they do across all foods; the very common molecules found nearly everywhere are left out because they say nothing about it.

Is 2-methyl-2-butanol safe to eat?

A substance matching this name is listed by FEMA as generally recognized as safe (GRAS) for use as a flavoring: FEMA number 5030, published in GRAS 32. Check current FDA and EFSA guidance for your market and use level.

FEMA number
5030 ? partial match
Publication
GRAS 32
FEMA name
4-(l-Menthoxy)-2-methyl-2-butanol
Reported use levels (ppm by food category)
Food categoryTypicalMaximum
beverages type i, non-alcoholic15
beverages type ii, alcoholic15
chewing gum110
gravies15
instant coffee and tea15
soft candy15
soups15

Typical vs maximum reported addition levels in finished food. A regulatory ceiling reference; verify against the current GRAS publication for your product category.

Source: FEMA GRAS publications 1–33.

2-methyl-2-butanol questions

What does 2-methyl-2-butanol smell like?

Sources describe 2-methyl-2-butanol as pungent.

Which foods contain 2-methyl-2-butanol?

We list 5 ingredients that contain 2-methyl-2-butanol.

How strong is 2-methyl-2-butanol?

Our working odour threshold for 2-methyl-2-butanol is 25,690 ppb.

What molecules are found with 2-methyl-2-butanol?

The molecules most often found in the same ingredients are (+)-delta-cadinene, (+)-neomenthol, (-)-matairesinol and (e)-β-farnesene.

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Cite this analysis
Plain text
Compound Kitchen (2026). 2-methyl-2-butanol compound data sheet. https://compkitchen.com/compound/2-methyl-2-butanol. Accessed 2026-11-03.
BibTeX
@misc{compkitchen_compound_2_methyl_2_butanol_compound_data_sheet_2026,
  title  = {2-methyl-2-butanol compound data sheet},
  author = {{Compound Kitchen}},
  year   = {2026},
  url    = {https://compkitchen.com/compound/2-methyl-2-butanol},
  note   = {Accessed: 2026-11-03}
}

Methodology DOI: 10.5281/zenodo.19719459 · CC BY 4.0 · Citations are a request, not a requirement.