Description
Ortho-Phthalaldehyde (OPA) (CAS 643-79-8) is a high-level disinfectant and fluorescent labeling reagent used in healthcare and analysis. RightPath Industries supplies ortho-phthalaldehyde in bulk general chemicals and small-package quantities with lot control and same-day response. Request pricing today.
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Ortho-Phthalaldehyde (OPA) Chemical Properties
| Ortho-Phthalaldehyde (OPA) — Technical Data | |
|---|---|
| CAS Number | 643-79-8 |
| Chemical Formula | C8H6O2 |
| Molecular Weight | 134.13 g/mol |
| Synonyms | OPA, 1,2-benzenedicarboxaldehyde, o-phthalaldehyde |
| Physical Form | Pale-yellow crystalline solid |
Available Grades
RightPath offers ortho-phthalaldehyde in Standard/Production, ACS, USP, HPLC, and High Purity grades — matched to your application, from large-scale manufacturing to analytical laboratories. Request a quote for the grade and volume you need.
Common Applications
- High-level instrument disinfection
- Fluorescent amino-acid labeling
- Analytical and diagnostic reagent
- Biocide formulation
- Research chemistry
Industries Served
Ortho-Phthalaldehyde (OPA) supports healthcare, laboratories, and diagnostics. See all industries we serve.
Packaging & Supply
Available in gallons, pails, drums, totes, and bulk — packed to your specification and lot-controlled on request, with just-in-time inventory sequestered near your facility.
Why Source Ortho-Phthalaldehyde (OPA) from RightPath
Competitive bulk pricing, exact cross-referencing to your current spec, and 24/7 support. Explore related products such as general chemicals, the full catalog, or browse the complete product catalog.
Frequently Asked Questions
What grades of OPA does RightPath offer?
Standard/Production, ACS, USP, HPLC, and High Purity.
Can I buy OPA in bulk?
Yes — from small packaging up to drums, totes, and bulk volumes. Contact us to set up supply.
What is OPA used for?
Used as a high-level disinfectant and analytical labeling reagent.
Bulk Ortho Pthalaldehyde Pricing & Packaging
Bulk ortho pthalaldehyde pricing is customer-specific and quoted per gallon, by drum, or by tote based on volume, grade, packaging, and delivery location. Because RightPath Industries quotes each order directly, buyers are not paying a published list-price markup. The per-gallon cost decreases significantly as pack size increases from 5-gallon pails up to 55-gallon drums, 275-gallon IBC totes, and bulk tanker deliveries.
Ortho Pthalaldehyde is available for same-day quoting. RightPath Industries provides all-in delivered pricing with no hidden fees and responds to quote requests the same day.
Packaging options for ortho pthalaldehyde
RightPath supplies ortho pthalaldehyde in pails, 55-gallon drums, 275-gallon IBC totes, and bulk tanker, with custom packaging and repackaging available from small containers to bulk.
Bulk Ortho Pthalaldehyde Pricing FAQ
How much does bulk ortho pthalaldehyde cost?
Pricing is customer-specific and quoted daily based on volume, grade, packaging, and freight. RightPath Industries provides same-day bulk ortho pthalaldehyde quotes with all-in delivered pricing.
What is the cheapest way to buy ortho pthalaldehyde in bulk?
Larger pack sizes lower the per gallon cost. Drums, IBC totes, and bulk tanker orders deliver the lowest unit pricing.
How fast can I get a quote?
Same day. RightPath Industries answers quote requests within one business day, typically within hours.
Available Grades, Sizes and Packaging
Ortho Pthalaldehyde is supplied in the 3 grade, size and packaging combinations listed below. Pricing is quoted per order; contact RightPath Industries for current delivered pricing on any line.
| Grade | Size | Packaging | Catalog No. | Weight (lb) |
|---|---|---|---|---|
| Production | 5 Gallon | Pail | RPI-OPA-5G | 42 |
| Production | 55 Gallon | Drum | RPI-OPA-DRM | 460 |
| Production | 275 Gallon | Tote | RPI-OPA-TOT | 2300 |






