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Carboxylic acids and anhydrides

3-Hydroxybutyrate

Also known as beta-hydroxybutanoate, 3-OH butyrate, 3-OH-butyrate

CAS 151-03-1Formula C4H7O3-Molar mass 103.10 g/mol
4 suppliers listed
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3-Hydroxybutyrate chemical structure, C4H7O3-, CAS 151-03-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
151-03-1
Formula
C4H7O3-
Molar mass
103.10 g/mol
HS code
291819
Category
Carboxylic acids and anhydrides

What is 3-Hydroxybutyrate?

Plain description, key identifiers and synonyms

3-hydroxybutyrate is a hydroxy fatty acid anion that is the conjugate base of 3-hydroxybutyric acid, obtained by deprotonation of the carboxy group, major species at pH 7.3. It has a role as a human metabolite. It is functionally related to a butyrate. It is a conjugate base of a 3-hydroxybutyric acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-hydroxybutanoate
CAS number
151-03-1
Molecular formula
C4H7O3-
UNII
FG2UN5EP9V
InChIKey
WHBMMWSBFZVSSR-UHFFFAOYSA-M
InChI
InChI=1S/C4H8O3/c1-3(5)2-4(6)7/h3,5H,2H2,1H3,(H,6,7)/p-1
SMILES (canonical and isomeric)
CC(CC(=O)[O-])O

Synonyms

  • beta-hydroxybutanoate
  • 3-OH butyrate
  • 3-OH-butyrate
  • beta-hydroxy-n-butyrate
  • 3 Hydroxybutyrate
  • beta Hydroxybutyrate
  • 3-hydroxybutanoate
  • Butanoic acid, 3-hydroxy-, ION(1-)
  • DL-3-Hydroxybutyrate
  • (+ -)-3-Hydroxybutyric Acid

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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
103.10 g/molcalc.
Exact mass
103.0401 Dacalc.
LogP (octanol/water)
-1.49calc.
Topological polar surface area
60.36 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
2calc.
Heavy atoms
7calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.75calc.
Formal charge
-1calc.
Stereocentres
1calc.
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

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

3-Hydroxybutyrate suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 4 suppliers
4 of 4 offers

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Where suppliers are based

4 suppliers in 2 countries

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3-Hydroxybutyrate price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Roles

  • animal metabolite
  • eukaryotic metabolite
  • human metabolite
  • mammalian metabolite
  • metabolite

Pharmacology

3-Hydroxybutyrate is a hydroxy fatty acid anion and ketone body synthesized in the liver from acetyl-Coenzyme A (acetyl-CoA) by the enzyme 3-hydroxybutyrate dehydrogenase. 3-hydroxybutyrate can be used as an energy source when glucose levels drop. Elevated urine and serum levels of 3-hydroxybutyrate are seen in ketosis and ketoacidosis.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 3-Hydroxybutyrate is traded under.

HS 2918.19Indicative HS code

Carboxylic acids with alcohol function but without other oxygen function, their…

World exports in 2024
$1.37B
+0.5% vs 2023, imports $1.18B
2019 to 2024
Top exporters
  1. China23.7%
  2. Italy14.7%
  3. India * partner reported12.0%
Top importers
  1. Germany11.7%
  2. South Korea9.8%
  3. Italy9.6%

* Partner reported figures, a lower bound.

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

The HS code shown for 3-Hydroxybutyrate is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 3-Hydroxybutyrate, based on the data on this page

What is 3-Hydroxybutyrate?

3-hydroxybutyrate is a hydroxy fatty acid anion that is the conjugate base of 3-hydroxybutyric acid, obtained by deprotonation of the carboxy group, major species at pH 7.3. It has a role as a human metabolite. It is functionally related to a butyrate. It is a conjugate base of a 3-hydroxybutyric acid.

What is the CAS number of 3-Hydroxybutyrate?

The CAS registry number of 3-Hydroxybutyrate is 151-03-1.

What is the molecular formula and weight of 3-Hydroxybutyrate?

The molecular formula of 3-Hydroxybutyrate is C4H7O3- and its molar mass is 103.10 g/mol.

What is 3-Hydroxybutyrate used for?

Known uses and roles of 3-Hydroxybutyrate include building blocks in research and laboratory, animal metabolite, eukaryotic metabolite, human metabolite, mammalian metabolite and 1 more.

Is 3-Hydroxybutyrate hazardous?

No GHS hazard classification for 3-Hydroxybutyrate is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of 3-Hydroxybutyrate?

3-Hydroxybutyrate is usually classified under HS code 291819 (Carboxylic acids with alcohol function but without other oxygen function, their…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 3-Hydroxybutyrate?

CompoundList lists 4 suppliers of 3-Hydroxybutyrate in China and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of 3-Hydroxybutyrate?

Suppliers quote 3-Hydroxybutyrate on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle 3-Hydroxybutyrate

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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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