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Phosphates and phosphorus salts

Phosphate

Also known as Phosphate ion, O-Phosphate, Phosphates

CAS 14265-44-2Formula O4P-3Molar mass 94.97 g/molEC 604-302-9
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Phosphate chemical structure, O4P-3, CAS 14265-44-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
14265-44-2
Formula
O4P-3
Molar mass
94.97 g/mol
HS code
283529
Category
Phosphates and phosphorus salts
UN number
UN NA1955

What is Phosphate?

Plain description, key identifiers and synonyms

Phosphate(3-) is a phosphate ion that is the conjugate base of hydrogenphosphate. It is a phosphate ion and a trivalent inorganic anion. It is a conjugate base of a hydrogenphosphate.

Phosphate is an anion, fully deprotonated phosphoric acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
phosphate
CAS number
14265-44-2 CAS number cross-checked
EC number
604-302-9
Molecular formula
O4P-3
UNII
NK08V8K8HR
MDL number
MFCD00145108
InChIKey
NBIIXXVUZAFLBC-UHFFFAOYSA-K
InChI
InChI=1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)/p-3
SMILES (canonical and isomeric)
[O-]P(=O)([O-])[O-]

Synonyms

  • Phosphate ion
  • O-Phosphate
  • Phosphates
  • Phosphate ions
  • Phosphate, Inorganic
  • Phosphates, Inorganic
  • Organic phosphate
  • Liquidguard
  • phosphoric acid ((2S,5R)-5-(2,4-diketopyrimidin-1-yl)tetrahydrofuran-2-yl)methyl 3-pyridyl 4-pyridyl ester
  • orthophosphate
  • phosphate(3-)
  • PO43?
  • Phosphate PO4-3 @ 10,000microg/mL
  • Phosphate as P @ 1000 microg/mL in H2O
  • Phosphate as P @ 10000 microg/mL in H2O
  • Alendronate EP Impurity B
  • Phosphate Standard: PO4(-3) @ 1000 microg/mL in H2O
  • a phosphate group
  • tetraoxophosphate(V)
  • phosphate(3-) ion
  • tetraoxophosphate(3-)
  • tetraoxidophosphate(3-)
  • Phosphate 100ppm As P
  • phosphoric acid, ion(3-)
  • PO4(3-)
Show all 32 synonyms
  • Phosphate standard solution (5 ppm PO4)
  • [PO4](3-)
  • Ion Chromatography Anion Std Phosphate 1mg/mL (1000 ppm)
  • Phosphate Standard: PO4(-3) @ 10000 microg/mL in H2O
  • Sodium alendronate trihydrate impurity b
  • Ion Selective Electrode Standard Phosphate 1000ppm-Naturally short expiry
  • Reagecon Phosphate PO4 500 microg/mL Stock Solution according to Chinese Pharmacopoeia (ChP)

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
94.97 g/molcalc.
Exact mass
94.9551 Dacalc.
LogP (octanol/water)
-2.82calc.
Topological polar surface area
86.25 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
0calc.
Heavy atoms
5calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
-3calc.
Stereocentres
0calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS classification
Hazard pictograms
UN number
UN NA1955
Transport hazard class
2.3

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

Phosphate suppliers

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

All 25 suppliers
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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

25 suppliers in 7 countries

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Phosphate 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

  • Saccharomyces cerevisiae metabolite
  • cofactor
  • eukaryotic metabolite
  • fungal metabolite
  • metabolite

Functional uses

  • Binder
  • Defoamer
  • Flame retardant
  • Soil amendments

Pharmacology

Organic Phosphate is an ester of phosphoric acid, which contains phosphorus. Organic phosphates play important roles in biochemistry and biogeochemistry or ecology.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • Active ingredient in FDA approved drug labels

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 Phosphate is traded under.

HS 2835.29Indicative HS code

Phosphates, other

World exports in 2024
$249M
+7.3% vs 2023, imports $274M
2019 to 2024
Top exporters
  1. Germany19.7%
  2. China17.7%
  3. France * partner reported14.8%
Top importers
  1. United States8.3%
  2. Germany6.3%
  3. Malaysia6.2%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Phosphate?

Phosphate(3-) is a phosphate ion that is the conjugate base of hydrogenphosphate. It is a phosphate ion and a trivalent inorganic anion. It is a conjugate base of a hydrogenphosphate.

What is the CAS number of Phosphate?

The CAS registry number of Phosphate is 14265-44-2.

What is the molecular formula and weight of Phosphate?

The molecular formula of Phosphate is O4P-3 and its molar mass is 94.97 g/mol.

What is Phosphate used for?

Known uses and roles of Phosphate include saccharomyces cerevisiae metabolite, cofactor, eukaryotic metabolite, fungal metabolite, metabolite and 4 more.

Is Phosphate hazardous?

No GHS hazard classification for Phosphate 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 Phosphate?

Phosphate is usually classified under HS code 283529 (Phosphates, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Phosphate?

CompoundList lists 25 suppliers of Phosphate in China, United States, Germany, Czech Republic 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 Phosphate in India?

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

What is the price of Phosphate?

Suppliers quote Phosphate 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 Phosphate

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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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