99%+ purityAlcohol Prep Pads
★★★★★4.9 — customer reviewsNon-woven pads saturated with 70 % v/v isopropyl alcohol, individually sealed. In lab practice they are used to wipe a vial's rubber stopper before a needle goes through it: the stopper meets air and hands, and the cleanliness of the contents across repeated withdrawals rests on wiping that surface. The concentration is not arbitrary — 70 % outperforms 96 % because alcohol needs water to reach the inside of a microbial cell and denature its proteins, while anhydrous alcohol fixes the envelope surface and goes no further. Each sachet is opened immediately before use: isopropanol is volatile and an opened pad dries out within minutes.
- Active substance
- Isopropyl alcohol (2-propanol), 70 % v/v
- CAS number
- 67-63-0
- Size
- 30 × 60 mm folded
- Packaging
- Individually sealed foil/polyethylene sachet
- Intended use
- Wiping vial stoppers and work surfaces in the lab
- Storage
- Dry place, 5–25 °C, away from open flame
For laboratory research use only. Not for human consumption, medical or diagnostic use.
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