Trimethoprim suppliers and prices

Formula: C₁₄H₁₈N₄O₃
CAS number: 738-70-5
Molar mass: 290.32 g/mol

Cheapest by weight

$3.77 per gram

Price per unit, converted to US dollars

At HiMedia, IN

Pack: 25 grams for $94.30
Grade: Grade not stated · packs of 10 to 50 grams

View at HiMedia

Smallest amount to spend

27.89 CAD for 5 grams

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

At Bio Basic, Canada

Works out at: $3.99 per gram
Grade: Grade not stated · packs of 2 to 10 grams

View at Bio Basic

4 offers from 3 stores · Prices checked October 28 to October 30, 2026 · Prices run from $3.77 to $58.70 per gram, because a bigger pack costs less per gram.

Show prices per

Every price we found

4 prices, cheapest first

Store	Grade and pack	Price	Link
HiMediaINLowest price	Grade not stated · packs of 10 to 50 grams25 grams for $94.30	$3.77 per gram	View at store
Bio BasicCanada	Grade not stated · packs of 2 to 10 grams5 grams for 27.89 CAD	$3.99 per gram	View at store
MolekulaUnited Kingdom	Grade not stated · packs of 10 to 50 grams25 grams for $257.60	$10.30 per gram	View at store
MolekulaUnited Kingdom	Grade not stated · packs of 0.5 to 2 grams1 gram for $58.70	$58.70 per gram	View at store

Cite these pricesA ready sentence and reference for your report

For your report

As of October 30, 2026, the lowest store price for trimethoprim was $3.77 per gram: 25 grams for $94.30 at HiMedia.

Reference

APA, 7th edition

ChemicalSuppliers.com. (2026, October 30). Trimethoprim suppliers and prices. Retrieved October 30, 2026, from https://www.chemicalsuppliers.com/trimethoprim/

ACS

Trimethoprim Suppliers and Prices. ChemicalSuppliers.com, October 30, 2026. https://www.chemicalsuppliers.com/trimethoprim/ (accessed 2026-10-30).

BibTeX

@misc{chemicalsuppliers-trimethoprim,
  author  = {{ChemicalSuppliers.com}},
  title   = {{Trimethoprim} suppliers and prices},
  year    = {2026},
  date    = {2026-10-30},
  url     = {https://www.chemicalsuppliers.com/trimethoprim/},
  urldate = {2026-10-30},
  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 Trimethoprim and what they cost at the cheapest store we track.

Strength

Amount of solution

You need: 290 milligrams; of Trimethoprim, molar mass 290.32 g/mol
That much costs: $1.10; $10.95 per litre of solution, at the lowest price per gram we found
Cheapest way to buy it: $19.97; 1 pack of 5 grams at Bio Basic; View at Bio Basic

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

Sold by

Chemical identity

Formula: C₁₄H₁₈N₄O₃
Molar mass: 290.32 g/mol
CAS number: 738-70-5
InChIKey: IEDVJHCEMCRBQM-UHFFFAOYSA-N
Official record: PubChem 5578

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.