Sterile Water
Stocked in 3ml, 10ml, 30ml at MontanaPep in Great Falls, Montana. Sold for laboratory research use only.
| Size | Catalog no. | Price per vial |
|---|---|---|
| 3ml | SW3 | $5 |
| 10ml | SW10 | $10 |
| 30ml | SW30 | $15 |
Classification
Laboratory reconstitution diluent — sterile, preservative-free water; not a peptide or research compound
Structure and chemistry
Sterile water is purified water (H2O) that has been sterilized and sealed to prevent microbial contamination. It contains no preservative, buffer or other added solute, so it contributes nothing to the chemistry of whatever is dissolved in it.
What the published research shows
Not a research subject in its own right. Its relevance is practical peptide chemistry: guidance from peptide suppliers and academic core facilities generally recommends sterile water as the first solvent to try when reconstituting a lyophilized peptide, moving to dilute acetic acid, dilute ammonium hydroxide or an organic co-solvent such as DMSO only when a sequence’s charge or hydrophobicity requires it.
Mechanism of action
Water acts only as a solvent. Peptides that carry a net charge at neutral pH generally dissolve readily; strongly hydrophobic or aggregation-prone sequences may need an acidified diluent or an organic co-solvent instead.
Development history
A standard laboratory reagent rather than a developed product. Purity grades for laboratory water are defined by standards such as ASTM D1193 and ISO 3696.
Current regulatory status
A laboratory reagent for reconstituting and diluting research materials, supplied for research use only. It contains no preservative, so it should be handled aseptically once opened.
Analytical testing
Relevant specifications are sterility, endotoxin level, conductivity or resistivity, and total organic carbon. HPLC peptide analysis is not applicable to a diluent; a certificate of analysis should state the grade and the endotoxin limit.
Ordering from Great Falls
MontanaPep, also known as Montana Peptides, is an independently owned supplier based at 715 13th Ave S, Great Falls, Montana. Local pickup is available by arrangement, and we ship to research addresses across Montana including Billings, Missoula, Bozeman, Helena, Butte, Kalispell and Havre. Call (406) 799-0812 or email customerservice@montanapep.com.