Bacteriostatic water versus sterile water, which do I need?

Bacteriostatic water contains a 0.9 percent benzyl alcohol preservative and suits most peptides and multi-dose use. Sterile water is preservative-free and single-use, for compounds incompatible with benzyl alcohol or single-application protocols.

How much bacteriostatic water do I add per vial?

Most researchers add one diluent vial per peptide vial, with the exact volume set by the research protocol. The 10ml multi-dose format covers multiple reconstitutions.

How is bacteriostatic water stored?

Sealed vials are stored at room temperature. After the stopper is first punctured, refrigerate and use within the period defined by the research protocol.

Research use only · not for human or veterinary use

Lab supply · Reconstitution diluent

Bacteriostatic Water

10ml multi-dose vial · 0.9% benzyl alcohol preservative

The standard diluent for reconstituting lyophilized peptides. The benzyl alcohol preservative is bacteriostatic, meaning a reconstituted vial stays usable across repeated draws, which suits multi-dose research protocols.

€9.50per 10ml ampoule

In stock · ships from the EU

Most researchers add one diluent per peptide vial. Bundle with any compound at checkout.

Specification

Format10ml glass ampoule

Preservative0.9% benzyl alcohol

UseMulti-dose reconstitution

StorageRoom temperature, sealed

After first punctureUp to 28 days refrigerated

Lot26-W1

Which water do I need?

Bacteriostatic water (this product) contains a benzyl alcohol preservative and is the right choice for most peptides and multi-dose use, where a vial is drawn from more than once over several days or weeks.

Sterile water is preservative-free and single-use, intended for compounds incompatible with benzyl alcohol or for single-application protocols. See sterile water →