Acetic Acid Water (AA Water)
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Acetic Acid Water (AA Water) is sterile water that 0.6% acetic acid contains as an acidifying agent. The addition of acetic acid lowers the pH, thereby improving the solubility and stability of certain difficult-to-dissolve peptides during the reconstitution or dilution of peptide and protein formulations in a laboratory setting.
Price range: € 6,95 through € 14,95
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Description
Description
Acetic Acid Water (AA Water) is sterile water that 0.6% acetic acid contains as an acidifying agent. The addition of acetic acid lowers the pH, thereby improving the solubility and stability of certain difficult-to-dissolve peptides during the reconstitution or dilution of peptide and protein formulations in a laboratory setting.
Some research peptides do not dissolve or dissolve poorly in regular bacteriostatic or sterile water. A slightly acidic environment helps bring these compounds into full solution without compromising molecular integrity — this makes AA Water the solvent of choice for hard-to-dissolve research peptides.
Product specifications
| Specification | Value |
|---|---|
| Type | Sterile acetic acid water (no peptide) |
| Acidifying agent | 0.6% acetic acid |
| Sterilization | Aseptically bottled in a cleanroom environment |
| pH range | 2.5 – 4.0 (slightly acidic) |
| Form | Clear, colorless aqueous solution |
| Shelf life after opening | Up to approximately 28 days, provided it is stored correctly. |
| Storage conditions | Store in a cool, dry place, protected from direct light. |
Application in research
- Reconstitution of difficult-to-dissolve lyophilises — dissolving freeze-dried peptides that require an acidic environment to fully dissolve.
- pH reduction — the acidic environment improves the solubility and stability of sensitive research compounds.
- Dilution — controlled dilution of concentrated stock solutions to workable investigation concentrations.
- Compatibility — specifically suitable for peptides that do not dissolve or dissolve poorly in regular bacteriostatic or sterile water.
Frequently Asked Questions
What is Acetic Acid Water (AA Water)?
AA Water is sterile water with 0.6% acetic acid as an acidifier. The acetic acid lowers the pH, allowing poorly soluble peptides to dissolve more easily.
What is the difference compared to bacteriostatic water?
Bacteriostatic water contains 0.9% benzyl alcohol as a preservative and is virtually pH-neutral — suitable for most peptides and for multi-dose use. AA Water is slightly acidic due to the acetic acid and is specifically intended for peptides that require an acidic environment to dissolve completely.
When do I use AA Water instead of bacteriostatic water?
Use AA Water when a research peptide does not dissolve or dissolves poorly in regular bacteriostatic or sterile water. Always consult the dissolution guidelines for the relevant compound before choosing a solvent.
How long does an opened bottle remain usable?
Under proper storage conditions (cool, dry, protected from light) up to approximately 28 days after opening. Mark the opening date on the vial and use a clean, sterile needle for each aspiration.
Disclaimer: Intended solely for research purposes. Not intended for human or animal consumption, medical, diagnostic, therapeutic, or cosmetic applications. Buyer is 18+ and confirms the research context.
Specification
Overview
| Weight | N/A |
|---|---|
| Concentration (ml) | 3ml, 10ml |
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