Cheapest by volume
$130 per litre
Price per unit, converted to US dollars
At Wards Science, United States
- Pack
- 100 millilitres for $13.00
- Grade
- Grade not stated · packs of 50 millilitres to 1 litre
1-(p-Phenylazophenylazo)-2-naphthol (Sudan III) suppliers and prices
- Formula
- C22H16N4O
- CAS number
- 85-86-9
- Molar mass
- 352.40 g/mol
5 offers from 4 stores · Prices checked October 28, 2026 · Prices run from $130 to $5.05 per litre, because a bigger pack costs less per litre.
Show prices per
Liquids switch to the matching volume: microlitre, millilitre, litre, fluid ounce or US gallon.
Every price we found
5 prices, cheapest first
| Store | Grade and pack | Price | Link |
|---|---|---|---|
| Wards ScienceUnited States | Grade not stated · packs of 50 millilitres to 1 litre100 millilitres for $13.00 | $130 per litre | View at store |
| Boreal ScienceCanada | Grade not stated · packs of 50 millilitres to 1 litre100 millilitres for 20.55 CAD | $147 per litre | View at store |
| Science CompanyUnited States | Grade not stated · packs of 50 millilitres to 1 litre125 millilitres for $19.95 | $160 per litre | View at store |
| Lab AlleyUnited States | Grade not stated · packs of 50 grams to 1 kilogram500 grams for $547.95 | $1,096 per kilogram | View at store |
| Lab AlleyUnited States | Grade not stated · packs of 10 to 50 grams10 grams for $50.47 | $5.05 per gram | View at store |
Making a solution?
Pick the strength and how much you need. We work out the grams of 1-(p-Phenylazophenylazo)-2-naphthol (Sudan III) and what they cost at the cheapest store we track.
- You need
- 352 milligrams
- of 1-(p-Phenylazophenylazo)-2-naphthol (Sudan III), molar mass 352.40 g/mol
- That much costs
- $0.39
- $3.86 per litre of solution, at the lowest price per gram we found
Weigh it out, dissolve it in less water than you need, then top up to the full amount.
Similar chemicals
Sold by
Chemical identity
- Formula
- C22H16N4O
- Molar mass
- 352.40 g/mol
- CAS number
- 85-86-9
- InChIKey
- FHNINJWBTRXEBC-UHFFFAOYSA-N
- Official record
- PubChem 62331
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.