Trioctylphosphine Oxide suppliers and prices

Formula: C₂₄H₅₁OP
CAS number: 78-50-2
Molar mass: 386.60 g/mol

Cheapest by weight

$386 per kilogram

Price per unit, converted to US dollars

At Strem Chemicals, United States

Pack: 500 grams for $193.00
Grade: Grade not stated · packs of 50 grams to 1 kilogram

View at Strem Chemicals

Smallest amount to spend

28.00 EUR for 1 gram

Total for one pack, in the store's own currency

At CymitQuimica, ES

Works out at: $31.28 per gram
Grade: Grade not stated · packs of 0.5 to 2 grams

View at CymitQuimica

7 offers from 2 stores · Prices checked October 28 to October 29, 2026 · Prices run from $386 to $31.28 per kilogram, because a bigger pack costs less per kilogram.

Show prices per

Every price we found

7 prices, cheapest first

Store	Grade and pack	Price	Link
Strem ChemicalsUnited StatesLowest price	Grade not stated · packs of 50 grams to 1 kilogram500 grams for $193.00	$386 per kilogram	View at store
CymitQuimicaES	Grade not stated · packs of 50 grams to 1 kilogram500 grams for 245.00 EUR	$547 per kilogram	View at store
CymitQuimicaES	Grade not stated · packs of 1 to 25 kilograms2.5 kilograms for 3,372.00 EUR	$1,507 per kilogram	View at store
CymitQuimicaES	Grade not stated · packs of 10 to 50 grams25 grams for 35.00 EUR	$1.56 per gram	View at store
Strem ChemicalsUnited States	Grade not stated · packs of 10 to 50 grams25 grams for $44.00	$1.76 per gram	View at store
CymitQuimicaES	Grade not stated · packs of 2 to 10 grams5 grams for 31.00 EUR	$6.93 per gram	View at store
CymitQuimicaES	Grade not stated · packs of 0.5 to 2 grams1 gram for 28.00 EUR	$31.28 per gram	View at store

Cite these pricesA ready sentence and reference for your report

For your report

As of October 29, 2026, the lowest store price for trioctylphosphine oxide was $386 per kilogram: 500 grams for $193.00 at Strem Chemicals.

Reference

APA, 7th edition

ChemicalSuppliers.com. (2026, October 29). Trioctylphosphine oxide suppliers and prices. Retrieved October 30, 2026, from https://www.chemicalsuppliers.com/trioctylphosphine-oxide/

ACS

Trioctylphosphine Oxide Suppliers and Prices. ChemicalSuppliers.com, October 29, 2026. https://www.chemicalsuppliers.com/trioctylphosphine-oxide/ (accessed 2026-10-30).

BibTeX

@misc{chemicalsuppliers-trioctylphosphine-oxide,
  author  = {{ChemicalSuppliers.com}},
  title   = {{Trioctylphosphine oxide} suppliers and prices},
  year    = {2026},
  date    = {2026-10-29},
  url     = {https://www.chemicalsuppliers.com/trioctylphosphine-oxide/},
  urldate = {2026-10-30},
  note    = {Prices checked October 29, 2026}
}

Prices change every day, so each line carries the date they were checked.

Making a solution?

Pick the strength and how much you need. We work out the grams of Trioctylphosphine Oxide and what they cost at the cheapest store we track.

Strength

Amount of solution

You need: 387 grams; of Trioctylphosphine Oxide, molar mass 386.60 g/mol
That much costs: $149.23; $149.23 per litre of solution, at the lowest price per gram we found
Cheapest way to buy it: $193.00; 1 pack of 500 grams at Strem Chemicals; View at Strem Chemicals

Weigh it out, dissolve it in less water than you need, then top up to the full amount.

Similar chemicals

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Chemical identity

Formula: C₂₄H₅₁OP
Molar mass: 386.60 g/mol
CAS number: 78-50-2
InChIKey: ZMBHCYHQLYEYDV-UHFFFAOYSA-N
Official record: PubChem 65577

How we compare: each store's own price, turned into US dollars at European Central Bank rates of 2026-10-30, then divided by the pack size. Shipping and tax are not included.