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Carboxylic acids and anhydrides

(±)-2-Hydroxyisovaleric acid

Also known as 2-Hydroxy-3-methylbutanoic acid, 2-Hydroxy-3-methylbutyric acid, 2-Hydroxyisovaleric acid

CAS 4026-18-0Formula C5H10O3Molar mass 118.13 g/molEC 209-994-2
GHS signal word: Warning. Pictograms: Harmful or irritant 10 suppliers listed
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(±)-2-Hydroxyisovaleric acid chemical structure, C5H10O3, CAS 4026-18-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
4026-18-0
Formula
C5H10O3
Molar mass
118.13 g/mol
EC number
209-994-2
HS code
291819
Category
Carboxylic acids and anhydrides

What is (±)-2-Hydroxyisovaleric acid?

Plain description, key identifiers and synonyms

2-hydroxy-3-methylbutyric acid is a valine derivative that is valine in which the amino group has been replaced by a hydroxy group. It has a role as a human metabolite. It is functionally related to an isovaleric acid. It is a conjugate acid of a 2-hydroxy-3-methylbutyrate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-hydroxy-3-methylbutanoic acid
CAS number
4026-18-0 CAS number cross-checkedOther or deprecated CAS: 600-37-3
EC numbers
209-994-2, 223-697-5
Molecular formula
C5H10O3
UNII
02X1W97FWN
MDL number
MFCD00004242
InChIKey
NGEWQZIDQIYUNV-UHFFFAOYSA-N
InChI
InChI=1S/C5H10O3/c1-3(2)4(6)5(7)8/h3-4,6H,1-2H3,(H,7,8)
SMILES (canonical and isomeric)
CC(C)C(C(=O)O)O

Synonyms

  • 2-Hydroxy-3-methylbutanoic acid
  • 2-Hydroxy-3-methylbutyric acid
  • 2-Hydroxyisovaleric acid
  • Butanoic acid, 2-hydroxy-3-methyl-
  • 3-Methyl-2-hydroxybutyric acid
  • (+-)-2-Hydroxyisovaleric acid
  • alpha-hydroxyisovaleric acid
  • D-Valic acid
  • 2-Oxyisovaleric acid
  • DL-2-Hydroxyisovaleric acid
  • DL-2-Hydroxy-3-methylbutanoic acid
  • 2-Hydroxyisopentanoic acid
  • (1)-2-Hydroxy-3-methylbutyric acid
  • 2-Hydroxy-3-methylbutanoicacid
  • 2-Oxyisovalerate
  • L-Valic acid
  • 2-Hydroxyisovalerate
  • (+/-)-2-Hydroxyisovaleric acid
  • A-hydroxyisovalerate
  • 2-Hydroxyisopentanoate
  • alpha-hydroxyisovalerate
  • DL-a-hydroxyisovalerate
  • DL-2-Hydroxyisovalerate
  • DL-alpha-hydroxyisovalerate
  • 3-Methyl-2-hydroxybutyrate
Show all 37 synonyms
  • DL-2-Hydroxy-3-methylbutanoate
  • 2-Hydroxy-3-methyl butyric acid
  • 2-hydroxy-3-methyl-butanoic acid
  • DL-2-Hydroxy
  • (+/-)-2-Hydroxy-3-methylbutyric acid
  • A-hydroxyisovaleric acid
  • D-a-Hydroxyisovaleric acid
  • L-a-Hydroxyisovaleric acid
  • DL-a-hydroxyisovaleric acid
  • (RS)-2-hydroxyisovaleric acid
  • DL-alpha-hydroxyisovaleric acid
  • (2R)-2-Hydroxyisovaleric 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
118.13 g/molcalc.
Exact mass
118.063 Dacalc.
LogP (octanol/water)
0.09calc.
Topological polar surface area
57.53 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
2calc.
Heavy atoms
8calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.8calc.
Formal charge
0calc.
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

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • 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.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • 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

(±)-2-Hydroxyisovaleric acid suppliers

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Where suppliers are based

10 suppliers in 3 countries

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(±)-2-Hydroxyisovaleric acid 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

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 (±)-2-Hydroxyisovaleric acid 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 (±)-2-Hydroxyisovaleric acid is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about (±)-2-Hydroxyisovaleric acid, based on the data on this page

What is (±)-2-Hydroxyisovaleric acid?

2-hydroxy-3-methylbutyric acid is a valine derivative that is valine in which the amino group has been replaced by a hydroxy group. It has a role as a human metabolite. It is functionally related to an isovaleric acid. It is a conjugate acid of a 2-hydroxy-3-methylbutyrate.

What is the CAS number of (±)-2-Hydroxyisovaleric acid?

The CAS registry number of (±)-2-Hydroxyisovaleric acid is 4026-18-0. Other or deprecated CAS numbers: 600-37-3.

What is the molecular formula and weight of (±)-2-Hydroxyisovaleric acid?

The molecular formula of (±)-2-Hydroxyisovaleric acid is C5H10O3 and its molar mass is 118.13 g/mol.

What is (±)-2-Hydroxyisovaleric acid used for?

Known uses and roles of (±)-2-Hydroxyisovaleric acid include building blocks in research and laboratory, animal metabolite, eukaryotic metabolite, human metabolite, mammalian metabolite and 1 more.

Is (±)-2-Hydroxyisovaleric acid hazardous?

(±)-2-Hydroxyisovaleric acid carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of (±)-2-Hydroxyisovaleric acid?

(±)-2-Hydroxyisovaleric acid 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 (±)-2-Hydroxyisovaleric acid?

CompoundList lists 10 suppliers of (±)-2-Hydroxyisovaleric acid in China, United States and Canada. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of (±)-2-Hydroxyisovaleric acid?

Suppliers quote (±)-2-Hydroxyisovaleric acid 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 (±)-2-Hydroxyisovaleric acid

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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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