Product Overview
Isopropyl Acetate 99.98% ACS Grade is a clear, colorless liquid solvent with an aromatic odor, offered at 99.98% concentration under an ACS Grade designation. Also called Isopropyl Ethanoate or Acetic Acid Isopropyl Ester (CAS 108-21-4), it functions as a fast-evaporating solvent across analytical, coatings, pharmaceutical, and manufacturing workflows.
This product is available to order in pack sizes from 1-quart bottles through 55-gallon drums, scaling from bench-scale lab use to full production. It ships as a DOT-regulated Class 3 flammable liquid — every outbound shipment is classified and documented by our hazmat operations team in Taylor, TX.
Why This Concentration
At 99.98%, this is our highest-concentration isopropyl acetate, paired with an ACS Grade designation. That designation matters to buyers whose quality systems require formal grade documentation — analytical labs running HPLC separations, QC teams performing quantitative extractions, or formulators who need solvent purity recorded on incoming material certificates for audit traceability.
The practical difference comes down to documentation and sourcing controls. For processes where ACS-level traceability is not required — production-scale cleaning, general coatings work, or non-critical rinse steps — our Isopropyl Acetate 99.98% delivers the same 99.98% concentration without the ACS Grade designation, often at a lower cost per gallon. Match the grade to your process requirements, not to a default assumption.
Chemical Profile
Isopropyl Acetate is an ester with the molecular formula C5H10O2 and a molecular weight of 102.13 g/mol. It presents as a clear, colorless liquid with an aromatic odor and a flash point of 40 °F. The density is 0.874 at 68 °F — less dense than water, so it floats on aqueous surfaces. Solubility in water is limited, at 1 to 10 mg/mL at 68 °F, which makes it useful for liquid-liquid extractions where phase separation is required. Vapor pressure ranges from 1 mmHg at −36.9 °F up to 760 mmHg at 192.2 °F, confirming its volatility and relatively fast evaporation rate at ambient conditions. Vapors are heavier than air, which matters for ventilation planning in enclosed handling areas.
Industrial Applications
Isopropyl Acetate at this concentration and grade serves several distinct process roles:
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HPLC Mobile Phase — Widely used as a mobile-phase component in reversed-phase high-performance liquid chromatography. ACS Grade documentation gives analytical teams confidence that the solvent itself will not introduce interfering peaks or baseline drift during organic compound separations.
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Solvent for Coatings and Adhesives — Acts as a formulation solvent in paints, industrial coatings, and adhesive systems. Its solvency for a broad range of resins, combined with a moderate evaporation rate, allows coatings formulators to control film formation, flow, and leveling during application.
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Extraction Solvent — Employed in pharmaceutical and chemical extraction processes to isolate target compounds from complex mixtures. Its limited water solubility supports clean phase separation, while its volatility simplifies downstream solvent removal.
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Manufacturing Cleaning Agent — Used to remove organic residues, adhesive remnants, and process contaminants from equipment surfaces. Effective on cured coatings and resin buildups where less aggressive solvents fall short.
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Organic Synthesis Solvent — Serves as a reaction medium or co-solvent in organic synthesis workflows where a non-aqueous, moderately polar environment is needed. Its low water miscibility and controlled volatility make it practical for reflux setups and product isolation steps.
Handling & Storage
This product carries a Danger signal word (per the product's GHS classification) with the following hazard statements:
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H225 — Highly flammable liquid and vapor
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H319 — Causes serious eye irritation
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H336 — May cause drowsiness or dizziness
Store in a cool, dry, well-ventilated area away from heat sources, open flames, and direct sunlight. Use containers made of HDPE or glass — avoid incompatible materials that could react with the ester. Keep away from strong oxidizing agents and concentrated acids.
Operators should wear chemical-splash goggles, nitrile or compatible chemical-resistant gloves, and work in a well-ventilated space or under local exhaust. The 40 °F flash point means ignition sources must be eliminated in any area where the liquid or its vapors are present. Because vapors are heavier than air, they can accumulate in low-lying areas — ground-level ventilation and vapor monitoring matter in enclosed spaces. Contact with skin, eyes, or mucous membranes may cause irritation; consult the SDS for full exposure controls and first-aid measures.
Hazmat & Shipping
Isopropyl Acetate 99.98% ACS Grade is a DOT-regulated hazardous material. Every shipment is classified, packaged, marked, and documented by our hazmat operations team. The governing transport data:
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UN Number: UN1220 (per 49 CFR 172.101)
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Hazard Class: 3 — Flammable Liquid (per 49 CFR 172.101)
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Packing Group: II (per 49 CFR 172.101)
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Proper Shipping Name: Isopropyl acetate (per 49 CFR 172.101)
Packing Group II indicates a medium-danger flammable liquid for transport purposes. All required shipping papers, hazard labels, and package markings are applied before the shipment leaves our Taylor, TX facility.
Documentation
A Safety Data Sheet ships with every order, available in English, Spanish, French, and Japanese. A lot-specific Certificate of Analysis is also available on request, documenting the actual analytical results for your received lot. A Technical Data Sheet is on file for specification reference. If your receiving process requires advance document copies, contact us before your order ships.
Why Buy from Alliance Chemical
This product is available in pack sizes from single quarts up through 55-gallon drums — every container ships as a properly classified UN1220 Class 3 flammable liquid with full DOT documentation prepared by our hazmat operations team. Alliance Chemical has served over 55,000 customers since 1998, operating under USDOT registration 2188383. Shipping and handling guidance for this product has been reviewed by Andre Taki, DOT Hazmat Specialist.
