Isopropyl Alcohol 91% Lab Grade

Ideal Isopropanol Solution For Lab And Research Purposes

Select size:
1 Liter
1 Liter
1 Gallon
1 Gallon
4 Liters
4 Liters
5 Gallons
55 Gallons
270 Gallons
One-Time Purchase
Subscribe and Save - Unlock 10% Savings
Delivery every  
Sale price $30.00
Sale price $148.00
Sale price $35.00
Sale price $125.00
Sale price $50.00
Sale price $197.00
Sale price $55.00
Sale price $181.00
Sale price $209.00
Sale price $990.00
Sale price $3,163.00
Sale price $4,963.00 Regular price ($6,444.00)
Sale price $4,547.00 Regular price ($5,904.00)
Sale price $5,267.00 Regular price ($6,840.00)


Why Buy Isopropyl Alcohol 91% Lab Grade from Lab Alley

  • Price. Don’t worry! We do our homework. This product is offered at the industry’s lowest possible price.
  • Availability. In-Stock. This product is in stock and ready to ship.
  • Deliverability. Fast Shipping! This product is packaged with care from high quality, food grade packaging materials.
  • Quality. Our curated products bottled in America match or exceed strict specifications.

About Isopropyl Alcohol 91% Lab Grade

Isopropyl Alcohol (IPA) at the 91% concentration is hydrophobic and evaporates quickly making this concentration ideal for use with products and environments that are sensitive to water and residues. Isopropyl alcohol is a colorless and flammable liquid. Lab grade chemicals are high quality but unlike the ACS/USP grade the exact impurities are unknown making these great for lab and research purposes but not pure enough for food or drug uses.

This product contains 91% isopropyl alcohol 9% distilled water. The combination of alcohol and water makes this an ideal solution for cleaning and disinfecting. The presence of water makes this ideal for cleaning as it doesn’t evaporate as readily as a higher concentration. Isopropyl Alcohol is a colorless and flammable liquid.

Examples of when Isopropyl Alcohol 91% lab grade is the preferred concentration.

  • IPA 91% can be used in some electronic manufacturing processes that don’t require 99.8% isopropyl alcohol.
  • IPA 91% is used in HPLC, GC, fluorescence, or TLC for characterization and quantification of chemicals.

For products and equipment related to food, cosmetics or pharmaceuticals Isopropyl Alcohol 91% lab grade is preferred.

Common Uses and Applications

  • Varnishes
  • Electronics
  • Lab experiments and research
  • Reagents


Chemistry Table

Isopropanol, 2-propanol, Isopropyl Alcohol, 2-hydroxypropane, Alkolave, Avantine, Hartosol, Dimethylcarbinol, Sec-propyl alcohol, Petrohol
Lab Grade
>90 - 91.8%
Isopropyl Alcohol

Isopropyl Alcohol 91% Lab Grade Specifications

Assay 90 - 91.8%
Water 10 - 8.2%
Acidity as Acetic Acid 0.0008
Color, Pt-Co 5
Water Miscibility Pass
Specific Gravity 0.873 - 0.884
Distillation Range IPB, Deg C 82.1
Distillation Range DP, Deg C 82.2
Refractive Index 1.377 - 1.378

Safety and Shipping Information

DOT: Isopropanol, 3, UN1219, PG II

Please contact us to request a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for Isopropyl Alcohol 90-91% Lab.

If you have questions about ordering isopropyl alcohol (isopropanol) online here at or would like to place an order, call 512-668-9918 or email to talk with a Isopropyl Alcohol Specialist. Isopropyl Alcohol is shipped to customers in the United States by UPS. 

Questions & Answers

Have a Question?

Be the first to ask a question about this.

Ask a Chemistry Question