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Carboxylic acids and anhydrides

Dimethylolpropionic acid

Also known as 2,2-Bis(hydroxymethyl)propionic acid, 3-Hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid, 2,2-Bis(hydroxymethyl)propanoic acid

CAS 4767-03-7Formula C5H10O4Molar mass 134.13 g/molEC 225-306-3
GHS signal word: Warning. Pictograms: Harmful or irritant 33 suppliers listed
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Dimethylolpropionic acid chemical structure, C5H10O4, CAS 4767-03-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
4767-03-7
Formula
C5H10O4
Molar mass
134.13 g/mol
EC number
225-306-3
HS code
291819
Category
Carboxylic acids and anhydrides

What is Dimethylolpropionic acid?

Plain description, key identifiers and synonyms

2,2-Bis(hydroxymethyl)propionic acid is a 3-hydroxy carboxylic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid
CAS number
4767-03-7 CAS number cross-checkedOther or deprecated CAS: 34590-77-7
EC number
225-306-3
Molecular formula
C5H10O4
UNII
4NHI8V17MN
MDL number
MFCD00004199
InChIKey
PTBDIHRZYDMNKB-UHFFFAOYSA-N
InChI
InChI=1S/C5H10O4/c1-5(2-6,3-7)4(8)9/h6-7H,2-3H2,1H3,(H,8,9)
SMILES (canonical and isomeric)
CC(CO)(CO)C(=O)O

Synonyms

  • 2,2-Bis(hydroxymethyl)propionic acid
  • 3-Hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid
  • 2,2-Bis(hydroxymethyl)propanoic acid
  • alpha,alpha-Dimethylolpropionic acid
  • Dihydroxypivalic acid
  • Ptbdihrzydmnkb-uhfffaoysa-
  • 2,2-dihydroxymethylpropanoic acid
  • 2,2-bis(hydroxymethyl)-propionic acid
  • Propanoic acid, 3-hydroxy-2-(hydroxymethyl)-2-methyl
  • 2,2-Bis(Hydroxymethyl)Propanoicacid
  • 2,2-Dimethylolpropionic acid
  • Propanoic acid, 3-hydroxy-2-(hydroxymethyl)-2-methyl-
  • Dimethylol propionic acid
  • Hydracrylic acid, 2-(hydroxymethyl)-2-methyl-
  • Bis(hydroxymethyl)propionic acid
  • alpha,alpha-Bis(hydroxymethyl)propionic acid
  • Propionic acid,2-bis(hydroxymethyl)-
  • propanoic acid, 2,2-bis(hydroxymethyl)-
  • Propionic acid, 2,2-bis(hydroxymethyl)-
  • 2,2-bis(methylol)propionic acid
  • dihydroxymethyl propionic acid
  • 2,2-dimethylol propionic acid
  • 3-hydroxy-2-(hydroxymethyl)-2-methyl-propanoic acid
  • 2,2-bis(Me-OH)-propionic acid
  • 2,2-bis-hydroxymethyl propionic acid
Show all 33 synonyms
  • 2.2-bis(hydroxymethyl)propionic acid
  • 2,2-bis (hydroxymethyl)propionic acid
  • 2,2-bis(hydroxymethyl) propionic acid
  • 2,2-bis(hydroxymethyl)-propanoic acid
  • 2,2-bis-(hydroxymethyl)propionic acid
  • 2,2-bis-(hydroxymethyl)-propionic acid
  • 2,?2-?Bis(hydroxymethyl)?propionic Acid
  • 2,2-Bis(hydroxymethyl)propionic acid, 98%

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
134.13 g/molcalc.
Exact mass
134.0579 Dacalc.
LogP (octanol/water)
-0.94calc.
Topological polar surface area
77.76 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
3calc.
Heavy atoms
9calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.8calc.
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
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (11)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • 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.
  • 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.
  • P337 + P317If eye irritation persists: Get medical help.
  • 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

Dimethylolpropionic acid suppliers

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All 33 suppliers
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Where suppliers are based

33 suppliers in 9 countries

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Dimethylolpropionic acid price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Functional uses

  • Chemical reaction regulator
  • Dispersing agent

Regulatory status

Inventories, regulations and trade controls that list this substance

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

Frequently asked questions

Quick answers about Dimethylolpropionic acid, based on the data on this page

What is Dimethylolpropionic acid?

2,2-Bis(hydroxymethyl)propionic acid is a 3-hydroxy carboxylic acid.

What is the CAS number of Dimethylolpropionic acid?

The CAS registry number of Dimethylolpropionic acid is 4767-03-7. Other or deprecated CAS numbers: 34590-77-7.

What is the molecular formula and weight of Dimethylolpropionic acid?

The molecular formula of Dimethylolpropionic acid is C5H10O4 and its molar mass is 134.13 g/mol.

What is Dimethylolpropionic acid used for?

Known uses and roles of Dimethylolpropionic acid include building blocks in research and laboratory, chemical reaction regulator and dispersing agent.

Is Dimethylolpropionic acid hazardous?

Dimethylolpropionic acid carries the GHS signal word "Warning". Main hazards: 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 Dimethylolpropionic acid?

Dimethylolpropionic 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 Dimethylolpropionic acid?

CompoundList lists 33 suppliers of Dimethylolpropionic acid in China, United States, Canada, Germany and 5 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Dimethylolpropionic acid?

Suppliers quote Dimethylolpropionic 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 Dimethylolpropionic 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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