Diphenhydramine Hydrochloride suppliers and prices

Formula: C₁₇H₂₂ClNO
CAS number: 147-24-0
Molar mass: 291.80 g/mol

Cheapest by weight

$251 per kilogram

Price per unit, converted to US dollars

At Xenex Laboratories, Canada

Pack: 100 grams for 35.00 CAD
Grade: USP grade · packs of 50 grams to 1 kilogram

View at Xenex Laboratories

Smallest amount to spend

10.00 CAD for 25 grams

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

At Xenex Laboratories, Canada

Works out at: $0.29 per gram
Grade: USP grade · packs of 10 to 50 grams

View at Xenex Laboratories

4 offers from 2 stores · Prices checked October 28 to October 29, 2026 · Prices run from $251 to $175 per kilogram, because a bigger pack costs less per kilogram.

Show prices per

Every price we found

4 prices, cheapest first

Store	Grade and pack	Price	Link
Xenex LaboratoriesCanadaLowest price	USP grade · packs of 50 grams to 1 kilogram100 grams for 35.00 CAD	$251 per kilogram	View at store
Xenex LaboratoriesCanada	USP grade · packs of 10 to 50 grams25 grams for 10.00 CAD	$0.29 per gram	View at store
MolekulaUnited Kingdom	Grade not stated · packs of 50 grams to 1 kilogram100 grams for $58.70	$587 per kilogram	View at store
Xenex LaboratoriesCanadaOut of stock	USP grade · packs of 1 to 25 kilograms1 kilogram for 245.00 CAD	$175 per kilogram	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 diphenhydramine hydrochloride was $251 per kilogram, converted to US dollars: 100 grams of USP grade for 35.00 CAD at Xenex Laboratories.

Reference

APA, 7th edition

ChemicalSuppliers.com. (2026, October 29). Diphenhydramine hydrochloride suppliers and prices. Retrieved October 30, 2026, from https://www.chemicalsuppliers.com/diphenhydramine-hydrochloride/

ACS

Diphenhydramine Hydrochloride Suppliers and Prices. ChemicalSuppliers.com, October 29, 2026. https://www.chemicalsuppliers.com/diphenhydramine-hydrochloride/ (accessed 2026-10-30).

BibTeX

@misc{chemicalsuppliers-diphenhydramine-hydrochloride,
  author  = {{ChemicalSuppliers.com}},
  title   = {{Diphenhydramine hydrochloride} suppliers and prices},
  year    = {2026},
  date    = {2026-10-29},
  url     = {https://www.chemicalsuppliers.com/diphenhydramine-hydrochloride/},
  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 Diphenhydramine Hydrochloride and what they cost at the cheapest store we track.

Strength

Amount of solution

You need: 292 grams; of Diphenhydramine Hydrochloride, molar mass 291.80 g/mol
That much costs: $73.11; $73.11 per litre of solution, at the lowest price per gram we found
Cheapest way to buy it: $75.17; 3 packs of 100 grams at Xenex Laboratories; View at Xenex Laboratories

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: C₁₇H₂₂ClNO
Molar mass: 291.80 g/mol
CAS number: 147-24-0
InChIKey: PCHPORCSPXIHLZ-UHFFFAOYSA-N
Official record: PubChem 8980

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.