Bis(trimethylsilyl)octylphosphonate suppliers and prices

Formula: C₁₄H₃₅O₃PSi₂
CAS number: 158074-31-8
Molar mass: 338.57 g/mol

Found at 1 store we track

$126 per gram

10 grams for 1,132.00 EUR, about $1,265

At SiKEMIA, France · Grade not stated

View at SiKEMIA

Lowest total price

174.00 EUR for 1 gram, about $194

Works out at $194 per gram

At SiKEMIA, France

View at SiKEMIA

Only one store we read sells Bis(trimethylsilyl)octylphosphonate so far. Sell it, or know a store that does? Tell us.

Every price we found

3 prices from 1 store, checked October 30, 2026. In stock from $126 to $194 per gram, depending on pack size and store. Each one is worked out per kilogram, so a small bottle and a big bag compare fairly.

SortShow prices per Currency

Pack	Store	Grade and form	Price per unit
10 grams1,132.00 EUR, about $1,265	SiKEMIAFrance	Lowest priceGrade not stated	$126 per gram
5 grams653.00 EUR, about $730	SiKEMIAFrance	Grade not stated	$146 per gram
1 gram174.00 EUR, about $194	SiKEMIAFrance	Grade not stated	$194 per gram

Cite these pricesA ready sentence and reference for your report

For your report

As of October 30, 2026, the lowest store price for bis(trimethylsilyl)octylphosphonate was $126 per gram, converted to US dollars: 10 grams for 1,132.00 EUR at SiKEMIA.

Reference

APA, 7th edition

ChemicalSuppliers.com. (2026, October 30). Bis(trimethylsilyl)octylphosphonate suppliers and prices. Retrieved October 31, 2026, from https://www.chemicalsuppliers.com/bis-trimethylsilyl-octylphosphonate/

ACS

Bis(trimethylsilyl)octylphosphonate Suppliers and Prices. ChemicalSuppliers.com, October 30, 2026. https://www.chemicalsuppliers.com/bis-trimethylsilyl-octylphosphonate/ (accessed 2026-10-31).

BibTeX

@misc{chemicalsuppliers-bis-trimethylsilyl-octylphosphonate,
  author  = {{ChemicalSuppliers.com}},
  title   = {{Bis(trimethylsilyl)octylphosphonate} suppliers and prices},
  year    = {2026},
  date    = {2026-10-30},
  url     = {https://www.chemicalsuppliers.com/bis-trimethylsilyl-octylphosphonate/},
  urldate = {2026-10-31},
  note    = {Prices checked October 30, 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 Bis(trimethylsilyl)octylphosphonate and what they cost at the cheapest store we track.

Strength

Amount of solution

You need: 339 milligrams; of Bis(trimethylsilyl)octylphosphonate, molar mass 338.57 g/mol
That much costs: $42.82; $428.18 per litre of solution, at the lowest price per gram we found
Cheapest way to buy it: $194.39; 1 pack of 1,000 milligrams at SiKEMIA; View at SiKEMIA

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

Similar chemicals

Sold by

SiKEMIA

Chemical identity

Formula, molar mass, CAS number, InChIKey and the official PubChem record

Formula: C₁₄H₃₅O₃PSi₂
Molar mass: 338.57 g/mol
CAS number: 158074-31-8
InChIKey: KDVSUUCTCLZYIS-UHFFFAOYSA-N
Official record: PubChem 14978731

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.