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Related brand · disclosed
Original illustration for AA (Acetic Acid) Water research notes: abstract molecular artwork in orange and teal
Original illustration by USA Peptide Vendors; artistic, not a structural model.

Bench sheet · Diluent

Working with AA (Acetic Acid) Water

Dilute acetic acid solution used to dissolve peptides that resist neutral water. A mildly acidic diluent helps dissolve basic or aggregation-prone peptides.

Cofactors & DiluentsCAS 64-19-7Dilute acetic acidUpdated 2026-11-09
  1. 01

    What's in it

    Dilute acetic acid solution used to dissolve peptides that resist neutral water.

    A mildly acidic diluent helps dissolve basic or aggregation-prone peptides. Purgo's listing (10 mL) does not state the acid concentration.

  2. 02

    Reference values

    • CAS number64-19-7
    • Molecular formulaC2H4O2
    • Molecular weight60.05 g/mol
    • PubChem CID176

    Values are for acetic acid; Purgo does not publish the dilution.

    Verified 2026-11-09 against PubChem CID 176. Values we couldn't verify are left out.

  3. 03

    Handling and paperwork

    • Ask the vendor for the acid concentration before using it in a pH-sensitive assay
    • Match the CAS number on the certificate to 64-19-7.
    • Check the expiry and lot on the vial; preserved water is single-lot like any reagent.
  4. 04

    Sourcing

FAQ

What is AA (Acetic Acid) Water?

Dilute acetic acid solution used to dissolve peptides that resist neutral water. A mildly acidic diluent helps dissolve basic or aggregation-prone peptides. Purgo's listing (10 mL) does not state the acid concentration.

What are AA (Acetic Acid) Water's CAS number and molecular weight?

CAS 64-19-7, formula C2H4O2, 60.05 g/mol, per PubChem CID 176. Values are for acetic acid; Purgo does not publish the dilution.

Where can US labs buy AA (Acetic Acid) Water?

Purgo Labs stocks it as “AA (Acetic Acid) Water”; code usapeptidevendors takes 25% off at checkout. This page also lists the best-documented second vendor from our 112-vendor directory.

Is research-grade AA (Acetic Acid) Water for human use?

No. Vendor material is sold for Research Use Only, not for human or veterinary use.