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Inorganic acids

Triphosphoric acid

Also known as diphosphono hydrogen phosphate, catena-triphosphoric acid, Oligophosphate

CAS 10380-08-2Formula H5O10P3Molar mass 257.95 g/molEC 233-840-3
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Triphosphoric acid chemical structure, H5O10P3, CAS 10380-08-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
10380-08-2
Formula
H5O10P3
Molar mass
257.95 g/mol
EC number
233-840-3
HS code
280920
Category
Inorganic acids

What is Triphosphoric acid?

Plain description, key identifiers and synonyms

Triphosphoric acid is a phosphorus oxoacid and an acyclic phosphorus acid anhydride. It is a conjugate acid of a triphosphate(1-).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
diphosphono hydrogen phosphate
CAS number
10380-08-2 CAS number cross-checkedOther or deprecated CAS: 14127-68-5
EC number
233-840-3
Molecular formula
H5O10P3
UNII
NU43IAG5BC
InChIKey
UNXRWKVEANCORM-UHFFFAOYSA-N
InChI
InChI=1S/H5O10P3/c1-11(2,3)9-13(7,8)10-12(4,5)6/h(H,7,8)(H2,1,2,3)(H2,4,5,6)
SMILES (canonical and isomeric)
OP(=O)(O)OP(=O)(O)OP(=O)(O)O

Synonyms

  • diphosphono hydrogen phosphate
  • catena-triphosphoric acid
  • Oligophosphate
  • Triphosphorsaeure
  • Triphoshoric acid
  • acide triphosphorique
  • {[hydroxy(phosphonooxy)phosphoryl]oxy}phosphonic acid
  • Bis(phosphonooxy)phosphinic acid
  • Triphosphoric acid (h5p3o10)
  • bis(dihydroxidodioxidophosphato)hydroxidooxidophosphorus
  • mu-[hydroxidotrioxidophosphato(2-)-1kappaO,2kappaO]-bis(dihydroxidooxidophosphorus)
  • 1,7-dihydrido-2,4,6-trihydroxido-2,4,6-trioxido-1,3,5,7-tetraoxy-2,4,6-triphosphy-[7]catena
  • pentahydroxido-1kappa(2)O,2kappaO,3kappa(2)O-di-mu-oxido-trioxido-1kappaO,2kappaO,3kappaO-triphosphorus

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
257.95 g/molcalc.
Exact mass
257.9096 Dacalc.
LogP (octanol/water)
-0.69calc.
Topological polar surface area
170.8 Ųcalc.
Hydrogen bond donors
5calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
4calc.
Heavy atoms
13calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.

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.

Triphosphoric acid suppliers

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All 4 suppliers
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Where suppliers are based

4 suppliers in 3 countries

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Triphosphoric 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

Roles

  • antineoplastic agent
  • pharmaceutical

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 Triphosphoric acid is traded under.

HS 2809.20Indicative HS code

Phosphoric acid and polyphosphoric acids

World exports in 2024
$5.18B
+28.4% vs 2023, imports $3.64B
2019 to 2024
Top exporters
  1. Morocco55.3%
  2. China12.5%
  3. Israel7.1%
Top importers
  1. Pakistan11.4%
  2. United States8.8%
  3. India * partner reported7.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Triphosphoric acid?

Triphosphoric acid is a phosphorus oxoacid and an acyclic phosphorus acid anhydride. It is a conjugate acid of a triphosphate(1-).

What is the CAS number of Triphosphoric acid?

The CAS registry number of Triphosphoric acid is 10380-08-2. Other or deprecated CAS numbers: 14127-68-5.

What is the molecular formula and weight of Triphosphoric acid?

The molecular formula of Triphosphoric acid is H5O10P3 and its molar mass is 257.95 g/mol.

What is Triphosphoric acid used for?

Known uses and roles of Triphosphoric acid include acids and alkalis in home care and cleaning, antineoplastic agent and pharmaceutical.

Is Triphosphoric acid hazardous?

No GHS hazard classification for Triphosphoric acid 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 Triphosphoric acid?

Triphosphoric acid is usually classified under HS code 280920 (Phosphoric acid and polyphosphoric acids). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Triphosphoric acid?

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

What is the price of Triphosphoric acid?

Suppliers quote Triphosphoric 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 Triphosphoric 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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