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Aliphatic and alicyclic building blocks

Citrate

Also known as Citrate Ion, citrate salt, 2-hydroxypropane-1,2,3-tricarboxylate

CAS 126-44-3Formula C6H5O7-3Molar mass 189.10 g/mol
3 suppliers listed
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Citrate chemical structure, C6H5O7-3, CAS 126-44-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
126-44-3
Formula
C6H5O7-3
Molar mass
189.10 g/mol
HS code
291815
Category
Aliphatic and alicyclic building blocks

What is Citrate?

Plain description, key identifiers and synonyms

Citrate(3-) is a tricarboxylic acid trianion, obtained by deprotonation of the three carboxy groups of citric acid. It has a role as a fundamental metabolite. It is a citrate anion and a tricarboxylic acid trianion. It is a conjugate base of a citrate(2-). It is a conjugate acid of a citrate(4-).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-hydroxypropane-1,2,3-tricarboxylate
CAS number
126-44-3 CAS number cross-checked
Molecular formula
C6H5O7-3
UNII
664CCH53PI
InChIKey
KRKNYBCHXYNGOX-UHFFFAOYSA-K
InChI
InChI=1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)/p-3
SMILES (canonical and isomeric)
C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O

Synonyms

  • Citrate Ion
  • citrate salt
  • 2-hydroxypropane-1,2,3-tricarboxylate
  • Citrate anion
  • citr
  • 2-Hydroxy-1,2,3-propanetricarboxylate(3-)
  • 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, ion(3-)
  • citrate(3-)
  • citrate trianion
  • 2qpq
  • 3itc
  • 3kgq
  • citrate(3-) anion
  • 2yg2
  • 3ry8
  • 4eu3
  • cit(3-)
  • Citric acid, ion(3-)
  • 2-hydroxy-1,2,3-propanetricarboxylic acid, ion(3-)

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
189.10 g/molcalc.
Exact mass
189.0052 Dacalc.
LogP (octanol/water)
-5.25calc.
Topological polar surface area
140.6 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
7calc.
Rotatable bonds
5calc.
Heavy atoms
13calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.5calc.
Formal charge
-3calc.
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.

Citrate suppliers

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

All 3 suppliers
  • O Kimya
    Turkey, Ä°kitelli Osb/BaÅŸakÅŸehirUnclaimed profile
    Citrate IonGrade, purity and minimum order on request
    Price on request
    View
  • 3WAY Pharm Inc
    China, ShanghaiUnclaimed profile
    CitrateGrade, purity and minimum order on request
    Price on request
    View
  • Tripoot India Pvt. Ltd.
    India, New DelhiUnclaimed profile
    CitrateGrade, purity and minimum order on request
    Price on request
    View

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

3 suppliers in 3 countries

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Citrate 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

  • fundamental metabolite
  • metabolite

Functional uses

  • Binder
  • Plasticizer

Pharmacology

Citrate is a salt or ester of citric acid.

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 Citrate is traded under.

HS 2918.15Indicative HS code

Salts and esters of citric acid

World exports in 2024
$711M
−5.1% vs 2023, imports $863M
2019 to 2024
Top exporters
  1. China39.3%
  2. Germany25.1%
  3. United States7.9%
Top importers
  1. United States16.3%
  2. Germany5.9%
  3. Poland5.8%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Citrate?

Citrate(3-) is a tricarboxylic acid trianion, obtained by deprotonation of the three carboxy groups of citric acid. It has a role as a fundamental metabolite. It is a citrate anion and a tricarboxylic acid trianion. It is a conjugate base of a citrate(2-). It is a conjugate acid of a citrate(4-).

What is the CAS number of Citrate?

The CAS registry number of Citrate is 126-44-3.

What is the molecular formula and weight of Citrate?

The molecular formula of Citrate is C6H5O7-3 and its molar mass is 189.10 g/mol.

What is Citrate used for?

Known uses and roles of Citrate include building blocks in research and laboratory, fundamental metabolite, metabolite, binder and plasticizer.

Is Citrate hazardous?

No GHS hazard classification for Citrate 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 Citrate?

Citrate is usually classified under HS code 291815 (Salts and esters of citric acid). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Citrate?

CompoundList lists 3 suppliers of Citrate in China, India and Turkey. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Citrate in India?

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

What is the price of Citrate?

Suppliers quote Citrate 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 Citrate

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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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