Isopropyl alcohol (IPA), also called isopropanol or 2-propanol, is a colorless, volatile, flammable liquid with the formula C3H8O and a molecular weight of 60.10. It's commercially produced by direct or indirect hydration of propylene and has a flashpoint around 12°C (53°F), which classifies it as a Class IB flammable liquid. Compared to many common solvents, IPA has relatively low toxicity, though its vapor can still irritate the eyes, nose, and throat, and prolonged storage can lead to explosive peroxide formation, so older stock should be tested before distillation or evaporation.
COMMON APPLICATIONS
Isopropyl alcohol is used as a reagent, disinfectant, and antiseptic agent, a general industrial and laboratory solvent, an ingredient in soap making and cosmetics, and a cleaning solvent in electronics manufacturing.
GRADES EXPLAINED
Lab Grade IPA has reasonable purity for general solvent, cleaning, and disinfecting use, but its exact impurity profile isn't controlled to an official standard, so it isn't suited to food or drug applications. USP Grade meets United States Pharmacopeia purity requirements for medical and personal-care formulation, which is why most of our USP-grade SKUs also carry Kosher and Halal certification. ACS Grade meets American Chemical Society reagent specifications for analytical chemistry. Semiconductor/Electronic Grade is an ultra-high-purity IPA formulated for low-residue electronics cleaning, and HPLC Grade meets the purity chromatography instrumentation requires. Reagent Grade Anhydrous 2-Propanol (≤30ppm water) is for moisture-sensitive reactions and applications where even trace water is a problem.
TYPES & GRADES AT A GLANCE
WHY BUY FROM LAB ALLEY
256,000+ customers already order their chemicals from Lab Alley.
99.5% of orders ship within 1–2 business days, so an isopropyl alcohol order doesn't stall your production or research schedule.
98.9% inventory accuracy means the grade and concentration you see in stock is what actually ships.
SDS and COA are available online for every isopropyl alcohol grade, and USP Grade 99.8% and 91% carry Kosher and Halal certification, while USP Grade 70% is Halal certified.






