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Carboxylic acids and anhydrides

Propionate ion

Also known as propionate, Propanoic acid anion, EtCO2 anion

CAS 72-03-7Formula C3H5O2-Molar mass 73.07 g/mol
10 suppliers listed
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Propionate ion chemical structure, C3H5O2-, CAS 72-03-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
72-03-7
Formula
C3H5O2-
Molar mass
73.07 g/mol
HS code
291550
Category
Carboxylic acids and anhydrides

What is Propionate ion?

Plain description, key identifiers and synonyms

Propionate is the conjugate base of propionic acid, a key precursor in lipid biosynthesis. It has a role as a human metabolite. It is a conjugate base of a propionic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
propanoate
CAS number
72-03-7 CAS number cross-checked
Molecular formula
C3H5O2-
UNII
AKW5EM890C
InChIKey
XBDQKXXYIPTUBI-UHFFFAOYSA-M
InChI
InChI=1S/C3H6O2/c1-2-3(4)5/h2H2,1H3,(H,4,5)/p-1
SMILES (canonical and isomeric)
CCC(=O)[O-]

Synonyms

  • propionate
  • Propanoic acid anion
  • EtCO2 anion
  • metacetonate
  • propanate
  • pseudoacetate
  • carboxylatoethane
  • ethanecarboxylate
  • ethylformate
  • Propanoate ion
  • CH3-CH2-COO(-)
  • propanoate
  • Propanoic acid, ion(1-)
  • Anion standard - propionate
  • Sentry Grain Preservative
  • Organic Acid Salt Standard - Propionate

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
73.07 g/molcalc.
Exact mass
73.0295 Dacalc.
LogP (octanol/water)
-0.85calc.
Topological polar surface area
40.13 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
Heavy atoms
5calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.67calc.
Formal charge
-1calc.
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

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.

Propionate ion suppliers

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

All 10 suppliers
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Where suppliers are based

10 suppliers in 7 countries

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Propionate ion 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

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 Propionate ion is traded under.

HS 2915.50Indicative HS code

Propionic acid, its salts and esters

World exports in 2024
$421M
+3.2% vs 2023, imports $422M
2019 to 2024
Top exporters
  1. United States26.5%
  2. China22.5%
  3. Netherlands14.6%
Top importers
  1. Netherlands15.2%
  2. India * partner reported7.6%
  3. United States7.6%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Propionate ion, based on the data on this page

What is Propionate ion?

Propionate is the conjugate base of propionic acid, a key precursor in lipid biosynthesis. It has a role as a human metabolite. It is a conjugate base of a propionic acid.

What is the CAS number of Propionate ion?

The CAS registry number of Propionate ion is 72-03-7.

What is the molecular formula and weight of Propionate ion?

The molecular formula of Propionate ion is C3H5O2- and its molar mass is 73.07 g/mol.

What is Propionate ion used for?

Known uses and roles of Propionate ion include animal metabolite, eukaryotic metabolite, human metabolite, mammalian metabolite and metabolite.

Is Propionate ion hazardous?

No GHS hazard classification for Propionate ion 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 Propionate ion?

Propionate ion is usually classified under HS code 291550 (Propionic acid, its salts and esters). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Propionate ion?

CompoundList lists 10 suppliers of Propionate ion in China, Belgium, Germany, France and 3 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Propionate ion in India?

1 supplier in India list Propionate ion on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Propionate ion?

Suppliers quote Propionate ion 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 Propionate ion

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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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