Cheapest by volume
$194 per litre
Price per unit, converted to US dollars
At GFS Chemicals, United States
- Pack
- 500 millilitres for $96.80
- Grade
- Grade not stated · Solution · packs of 50 millilitres to 1 litre
Cheapest by volume
$194 per litre
Price per unit, converted to US dollars
At GFS Chemicals, United States
Smallest amount to spend
$61.29 for 1 gram
Total for one pack, in the store's own currency
At Lab Alley, United States
3 offers from 2 stores · Prices checked October 28, 2026 · Prices run from $194 to $61.29 per litre, because a bigger pack costs less per litre.
Liquids switch to the matching volume: microlitre, millilitre, litre, fluid ounce or US gallon.
3 prices, cheapest first
| Store | Grade and pack | Price | Link |
|---|---|---|---|
| GFS ChemicalsUnited States | Grade not stated · Solution · packs of 50 millilitres to 1 litre500 millilitres for $96.80 | $194 per litre | View at store |
| Lab AlleyUnited States | Reagent grade · packs of 2 to 10 grams5 grams for $217.50 | $43.50 per gram | View at store |
| Lab AlleyUnited States | Reagent grade · packs of 0.5 to 2 grams1 gram for $61.29 | $61.29 per gram | View at store |
Pick the strength and how much you need. We work out the grams of N-Phenylsufanilic Acid Barium and what they cost at the cheapest store we track.
Weigh it out, dissolve it in less water than you need, then top up to the full amount.
How we compare: each store's own price, turned into US dollars at European Central Bank rates of 2026-10-29, then divided by the pack size. Shipping and tax are not included.