Cheapest by weight
$244 per kilogram
Price per unit, converted to US dollars
At Lab Depot, United States
- Pack
- 2.5 kilograms for $610.76
- Grade
- ACS grade · packs of 1 to 25 kilograms
Phthalic Anhydride suppliers and prices
- Formula
- C8H4O3
- CAS number
- 85-44-9
- Molar mass
- 148.11 g/mol
Smallest amount to spend
$50.47 for 10 grams
Total for one pack, in the store's own currency
At Lab Alley, United States
- Works out at
- $5.05 per gram
- Grade
- Laboratory grade · packs of 10 to 50 grams
4 offers from 2 stores · Prices checked October 28, 2026 · Prices run from $244 to $5.05 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 |
|---|---|---|---|
| Lab DepotUnited States | ACS grade · packs of 1 to 25 kilograms2.5 kilograms for $610.76 | $244 per kilogram | View at store |
| Lab DepotUnited States | ACS grade · packs of 50 grams to 1 kilogram500 grams for $198.50 | $397 per kilogram | View at store |
| Lab DepotUnited States | ACS grade · packs of 10 to 50 grams25 grams for $77.95 | $3.12 per gram | View at store |
| Lab AlleyUnited States | Laboratory grade · 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 Phthalic Anhydride and what they cost at the cheapest store we track.
- You need
- 148 grams
- of Phthalic Anhydride, molar mass 148.11 g/mol
- That much costs
- $36.18
- $36.18 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.
Bulk suppliers in the US
22 companies make or distribute it, as reported to the US Environmental Protection Agency in 2020 and 2024.
- Ambyth ChemicalDistributor · Washington
- Catalynt SolutionsDistributor · Washington
- Daxx ChemDistributor · Texas
- ICC ChemicalDistributor · New York
- KH Chemicals NADistributor · New Jersey
- Posco International AmericaDistributor · New Jersey
- Soyventis North AmericaDistributor · New Jersey
- StarchemDistributor · Florida
- The Chemical CompanyDistributor · Rhode Island
- Allnex USAMaker · Georgia
- AOCMaker · Tennessee
- ExxonmobilMaker · Louisiana
- HuntsmanMaker · Texas
- KoppersMaker · Illinois
- LanxessMaker · Pennsylvania
- Polynt Composites USAMaker · Texas, Virginia
- ReichholdMaker · California, Florida, Illinois and 1 more
- ChempointDistributor · Washington · last reported 2020
- Colonial ChemicalDistributor · Georgia · last reported 2020
- MitsuiDistributor · Texas · last reported 2020
- Shrieve ChemicalDistributor · Texas · last reported 2020
- Exxon MobilMaker · Louisiana · last reported 2020
Your company? List it free and get bulk buyer requests.
Similar chemicals
Sold by
Chemical identity
- Formula
- C8H4O3
- Molar mass
- 148.11 g/mol
- CAS number
- 85-44-9
- InChIKey
- LGRFSURHDFAFJT-UHFFFAOYSA-N
- Official record
- PubChem 6811
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.