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Carboxylic acids and anhydrides

Copper citrate

Also known as dicopper, citric acid, C6H8Cu2O7+4, dicopper, 2-hydroxypropane-1,2,3-tricarboxylic acid

CAS 866-82-0Formula C6H8Cu2O7+4Molar mass 319.22 g/mol
4 suppliers listed
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Copper citrate chemical structure, C6H8Cu2O7+4, CAS 866-82-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
866-82-0
Formula
C6H8Cu2O7+4
Molar mass
319.22 g/mol
HS code
291815
Category
Carboxylic acids and anhydrides

What is Copper citrate?

Plain description, key identifiers and synonyms

Copper citrate is a chemical substance with the molecular formula C6H8Cu2O7+4 and a molar mass of 319.22 g/mol. Its CAS registry number is 866-82-0. The IUPAC name is dicopper, 2-hydroxypropane-1,2,3-tricarboxylic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dicopper, 2-hydroxypropane-1,2,3-tricarboxylic acid
CAS number
866-82-0
Molecular formula
C6H8Cu2O7+4
InChIKey
XKKOEIQWOHLHQM-UHFFFAOYSA-N
InChI
InChI=1S/C6H8O7.2Cu/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);;/q;2*+2
SMILES (canonical and isomeric)
C(C(=O)O)C(CC(=O)O)(C(=O)O)O.[Cu+2].[Cu+2]

Synonyms

  • dicopper, citric acid
  • C6H8Cu2O7+4
  • dicopper, 2-hydroxypropane-1,2,3-tricarboxylic 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
319.22 g/molcalc.
Exact mass
317.884 Dacalc.
LogP (octanol/water)
-1.25calc.
Topological polar surface area
132.1 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
5calc.
Heavy atoms
15calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.5calc.
Formal charge
4calc.
Stereocentres
0calc.
Components
3calc.
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.

Copper citrate suppliers

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

All 4 suppliers
4 of 4 offers

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

4 suppliers in 3 countries

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Copper 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

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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

Frequently asked questions

Quick answers about Copper citrate, based on the data on this page

What is Copper citrate?

Copper citrate is a chemical substance with the molecular formula C6H8Cu2O7+4 and a molar mass of 319.22 g/mol. Its CAS registry number is 866-82-0. The IUPAC name is dicopper, 2-hydroxypropane-1,2,3-tricarboxylic acid.

What is the CAS number of Copper citrate?

The CAS registry number of Copper citrate is 866-82-0.

What is the molecular formula and weight of Copper citrate?

The molecular formula of Copper citrate is C6H8Cu2O7+4 and its molar mass is 319.22 g/mol.

Is Copper citrate hazardous?

No GHS hazard classification for Copper 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 Copper citrate?

Copper 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 Copper citrate?

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

Where can I buy Copper citrate in India?

1 supplier in India list Copper 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 Copper citrate?

Suppliers quote Copper 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 Copper 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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