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Herbicides

Pinacolone

Also known as 3,3-Dimethyl-2-butanone, Pinacolin, tert-Butyl methyl ketone

CAS 75-97-8Formula C6H12OMolar mass 100.16 g/molEC 200-920-4
GHS signal word: Danger. Pictograms: Flammable, Harmful or irritant Controlled, licensed buyers only
Request as a licensed buyer Safety data
Pinacolone chemical structure, C6H12O, CAS 75-97-8
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless liquid
Melting point
-52.5 °C
Boiling point
106.1 °C
Density
0.7229 at 25 °C/25 °C
Flash point
5 °C
HS code
291419
Category
Herbicides

What is Pinacolone?

Plain description, key identifiers and synonyms

3,3-dimethylbutan-2-one is a methyl ketone that is butane substituted by an oxo group at position 2 and two methyl groups at position 3. It is a dialkyl ketone and a methyl ketone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3,3-dimethylbutan-2-one
CAS number
75-97-8 CAS number cross-checked
EC number
200-920-4
Molecular formula
C6H12O
UNII
3U1AAG3528
MDL number
MFCD00008846
InChIKey
PJGSXYOJTGTZAV-UHFFFAOYSA-N
InChI
InChI=1S/C6H12O/c1-5(7)6(2,3)4/h1-4H3
SMILES (canonical and isomeric)
CC(=O)C(C)(C)C

Synonyms

  • 3,3-Dimethyl-2-butanone
  • Pinacolin
  • tert-Butyl methyl ketone
  • Pinacoline
  • 2-Butanone, 3,3-dimethyl-
  • Methyl tert-butyl ketone
  • t-Butyl methyl ketone
  • 1,1,1-Trimethylacetone
  • Methyl t-butyl ketone
  • Pinakolin
  • 2,2-Dimethylbutanone
  • 2,2-Dimethyl-3-butanone
  • Ketone, t-butyl methyl
  • Methyltert-butyl ketone
  • 3,3-dimethylbutan-2-one
  • 3,3-Dimethylbutanone
  • Ketone, tert-butyl methyl
  • 3,3-Dimethyl-butan-2-one
  • methyl-t-butylketone
  • 1,1-Dimethylethyl methyl ketone
  • t-butylmethylketone
  • 1,1-Trimethylacetone
  • tert-C4H9COCH3
  • a,a,a-Trimethylacetone
  • tert-butyl-methyl ketone
Show all 29 synonyms
  • 2-Butanone,3-dimethyl-
  • 3,3-Dimethyl-2-butanone, 98%
  • alpha,alpha,alpha--trimethylacetone
  • 3,3-Dimethylbutan-2-one, Methyl t-butyl ketone, Pinacolin, Pinacolone, tert-Butyl methyl ketone

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Colorless liquidexp.
Odour
Peppermint or camphor-like odorexp.
Melting point
-52.5 °Cexp.
Boiling point
106.1 °Cexp.
Density
0.7229 at 25 °C/25 °Cexp.
Flash point
5 °Cexp.
Solubility
Sol in water (2.44% at 15 °C), soluble in alcohol, ether, acetoneexp.
Vapour pressure
31.5 mm Hg at 25 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
100.16 g/molcalc.
Exact mass
100.0888 Dacalc.
LogP (octanol/water)
1.62calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
7calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.83calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS02: Flammable
Flammable
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H225Highly flammable liquid and vapour.
  • H302Harmful if swallowed.
  • H319Causes serious eye irritation.
  • H332Harmful if inhaled.
  • H335May cause respiratory irritation.
  • H412Harmful to aquatic life with long lasting effects.
Precautionary statements (26)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • P330Rinse mouth.
  • P337 + P317If eye irritation persists: Get medical help.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Pinacolone suppliers

Controlled substance, listings of documented suppliers only, in the documented ranking

Export control

Pinacolone is controlled. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed before suppliers see it.

Licensed buyers only, every enquiry is reviewed by our compliance team.

Reference: Australia Group export control list, chemical weapons precursor

Our policy on controlled substances
No documented supplier lists it yet

Licensed buyers can post a request for Pinacolone with their licence. Our compliance team reviews it before suppliers see it.

Request as a licensed buyer

Pinacolone price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Produced in large amounts for synthesis of fungicides and herbicides.

How it is made

Prepd by distillation of pinacole hydrate with dil h2so4... Almost quantitative yields are obtained when 56.5 g pinacol hydrate is boiled for 3 hr with 0.5 l 25% h2so4 & the product is steam distilled...

3,3-Dimethyl-2-butanone can be produced by the following routes: hydrolysis of 4,4,5-trimethyl-1,3-dioxane, the product of the Prins reaction of isoprene with formaldehyde, ... the reduction dimerization of acetone under the influence of an acid catalyst with simultaneous rearrangement (the pinacol rearrangement), ... ketonization of pivalic acid with acetic acid or acetone over thorium, zirconium, or cerium catalysts, ... and oxidation of 2,3-dimethyl-2-butene with hydrogen peroxide

Regulatory status

Inventories, regulations and trade controls that list this substance

Export control

Pinacolone is controlled. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed before suppliers see it.

Licensed buyers only, every enquiry is reviewed by our compliance team.

Reference: Australia Group export control list, chemical weapons precursor

Our policy on controlled substances

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Pinacolone is traded under.

HS 2914.19Indicative HS code

Acyclic ketones without other oxygen function, other

World exports in 2024
$264M
+1.7% vs 2023, imports $308M
2019 to 2024
Top exporters
  1. China27.1%
  2. United States27.0%
  3. Germany10.5%
Top importers
  1. China22.8%
  2. United States13.0%
  3. India * partner reported10.7%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Pinacolone is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Pinacolone, based on the data on this page

What is Pinacolone?

3,3-dimethylbutan-2-one is a methyl ketone that is butane substituted by an oxo group at position 2 and two methyl groups at position 3. It is a dialkyl ketone and a methyl ketone.

What is the CAS number of Pinacolone?

The CAS registry number of Pinacolone is 75-97-8.

What is the molecular formula and weight of Pinacolone?

The molecular formula of Pinacolone is C6H12O and its molar mass is 100.16 g/mol.

What is Pinacolone used for?

Produced in large amounts for synthesis of fungicides and herbicides.

Is Pinacolone hazardous?

Pinacolone carries the GHS signal word "Danger". Main hazards: highly flammable liquid and vapour, harmful if swallowed, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Pinacolone?

Pinacolone is usually classified under HS code 291419 (Acyclic ketones without other oxygen function, other). This is indicative, confirm it with your customs broker before shipping.

Can I buy Pinacolone on CompoundList?

Pinacolone is a controlled substance. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed by our compliance team before suppliers see it.

Guides for buyers

Practical guides that help when you source, ship or handle Pinacolone

Request as a licensed buyer

Upload your licence with the request. Our compliance team reviews it before the documented suppliers see it.
Request as a licensed buyer
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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