Buy Bacteriostatic Water in Australia

Buy bacteriostatic water in Australia from Macropus Peptides, the standard diluent for reconstituting lyophilised research peptides. Each sealed vial contains sterile water with a small amount of benzyl alcohol as a preservative, which holds back bacterial growth so the vial can be punctured several times over the life of a study. Choose the 3mL vial for a single peptide vial, the 10mL vial for several, or the 30mL bottle for a whole study, all priced and ready to order. Every label carries product, volume, lot number and storage conditions, and a certificate of analysis is available for each lot. The preservative is benzyl alcohol at 9 mg per millilitre, the standard bacteriostatic formulation used in laboratories worldwide. Most customers add BAC water to the same order as their peptides, so diluent and peptide arrive together, dispatched from Australian stock to Perth, Melbourne, Brisbane, Adelaide and every other Australian address. Supplied for in-vitro laboratory research only, to purchasers aged 18 and over; not for human or veterinary use.

Compound	BAC Water Bacteriostatic
Amount	30 ml
Form	Laboratory supply
Category	Lab supplies
Storage	See label
Certificate of analysis	Available for every lot, matched to the lot number on the label

Buy Bacteriostatic Water Australia: 3mL, 10mL and 30mL Vials

Macropus Peptides supplies this diluent in three sizes, 3mL, 10mL and a 30mL bottle, for reconstituting freeze-dried research peptides. Of everything in our lab supplies range, it is what peptide buyers add to their carts most, because almost every lyophilised vial needs a clean, preserved liquid before it can be used in the laboratory. All three sizes hold the same formulation from one controlled supply, so size changes nothing but volume and cost per millilitre.

Bacteriostatic water Australia: what the diluent is

It is sterile water that contains a small amount of benzyl alcohol, 9 mg in every millilitre. The benzyl alcohol does not kill bacteria outright; it stops them multiplying, which is what bacteriostatic means. That preservative is the key difference from plain sterile water: a vial can be punctured, closed and used again over days or weeks without the contents becoming a growth medium. The liquid is colourless, has a faint characteristic smell from the preservative, and is supplied in sealed glass vials with a rubber septum so it can be drawn without opening the vial.

Bacteriostatic water for peptides: how the diluent is used in research

Research peptides are shipped as lyophilised powder because they are far more stable dry than in solution. To use one, a laboratory adds a measured volume of diluent, which sets the stock concentration: 2 mL added to a 10mg vial, for example, gives 5 mg per mL. A preserved diluent suits this job because it protects a peptide stock that will be drawn from repeatedly, and because its near-neutral character dissolves most peptides cleanly. Plain sterile water, by contrast, contains nothing but water and is meant for a single use: once the seal is broken, any leftover should be discarded because nothing stops bacteria growing in it. Sterile water is only preferred where a protocol specifically excludes preservatives, as some sensitive cell culture methods do. A few peptides are exceptions to both. Those that aggregate at neutral pH, such as IGF-1 LR3, are usually reconstituted in dilute acetic acid instead, so always check the peptide's own datasheet first.

BAC water and benzyl alcohol: what pharmaceutical references say

The product is defined by pharmacopoeial standards rather than clinical trials. The United States Pharmacopeia monograph describes it as sterile water containing one or more suitable antimicrobial agents, packaged for multiple withdrawals in containers no larger than 30 mL, with a pH between 4.5 and 7.0, and sets the sterility and endotoxin tests it must pass. Excipient handbooks list benzyl alcohol as an antimicrobial preservative used in injectable formulations at around 9 mg per mL, the concentration in our vials. The wider science is reviewed in a 2007 Journal of Pharmaceutical Sciences paper on antimicrobial preservatives in parenteral products, which explains why benzyl alcohol became one of the most widely used preservatives, and also notes that it can encourage some proteins to aggregate, one reason acid diluents exist for sensitive peptides. These sources are listed in our diluent research library.

BAC water vial specifications and storage

Each vial is glass, sealed with a rubber septum under a crimped cap, and labelled with product name, volume, lot number and storage conditions. The lot number is your reference for the matching certificate of analysis. Sealed vials keep until the expiry date on the label when stored at room temperature and out of direct light, and refrigeration is not required before opening. Once the septum has been punctured, multi-use vials are commonly used within 28 days, or as the label directs, and many laboratories keep an opened vial in the refrigerator to be safe. Throw out a vial that goes cloudy, grows specks or reaches its expiry, and draw with a new sterile needle every time so the preservative is never overloaded.

Bacteriostatic water price in Australia: cost per mL by size

All three sizes carry a set Australian dollar price and ship as soon as you order. The cost per millilitre falls sharply with size: the 30mL bottle costs only slightly more than the 10mL vial and works out at roughly a quarter of the per-millilitre cost of the 3mL vial. For most laboratories one of the larger sizes is the better buy, since a single bottle reconstitutes several peptide vials.

Bacteriostatic water 10ml: the standard vial

The 10mL vial is our standard size and the one most researchers search for. Ten millilitres stretches across five peptide vials if each takes 2 mL, so a single bottle usually covers a whole order of peptides. It is priced, in stock and ships in the same parcel as the peptides it will be used with.

Bacteriostatic water 3ml: one or two peptide vials

The 3mL bottle is meant for labs mixing just one or two peptide vials, so no half-used diluent lingers on the bench. Less liquid left over means fewer punctures and less time for the preservative to be tested. It is also the size included in our single-compound starter kits.

Bacteriostatic water 30ml: the lowest cost per millilitre

The 30mL bottle suits groups that reconstitute many vials over several weeks, or that run parallel studies from one lot of diluent. It is the largest multiple-withdrawal container the pharmacopoeial monograph allows, and it keeps every vial in a study on a single documented lot. Because the bottle is punctured repeatedly, work with a clean technique, swab the stopper each time and record the date of first puncture on the label.

Where to buy bacteriostatic water in Australia

• Sold online at macropuspeptides.com, priced at $34.99
• A certificate of analysis for every lot, matched to the lot number printed on the label
• Same-day dispatch from Australian stock for orders paid before 2pm AEST on a business day
• Tracked delivery Australia wide: standard in 2 to 5 working days, express in 1 to 2 working days
• Payment by PayID or bank transfer, with your order ID as the reference

How to order BAC water online

• Add the 3mL, 10mL or 30mL size to your cart
• Add the peptides you plan to reconstitute
• Include dilute acetic acid if any peptide calls for it
• Pay, confirming the purchase is for adult lab work
• Keep the lot number on file in case you need the certificate

BAC water calculator: how much to add for 5mg, 10mg and 20mg vials

The concentration calculator on each peptide listing turns the volume you add into mg and mcg per mL. The rule behind it is the vial's milligrams divided by the millilitres of diluent. One millilitre in a 5mg vial gives 5 mg per mL; 2 mL in a 10mg vial gives the same 5 mg per mL; 3 mL in a 10mg vial gives about 3.3 mg per mL; and 2 mL in a 20mg vial gives 10 mg per mL. Across a typical order of a Retatrutide 10mg vial and a BPC-157 10mg vial at 2 mL each, a 10mL bottle leaves 6 mL in reserve.

Is bacteriostatic water available in Australia

Yes. Research groups across the country can purchase it for reconstituting peptides, the sole purpose we supply it for. The vials go out for in-vitro bench work only, and none is sold as a medicine or for use on people or animals. Bacteriostatic water for injection intended for medical use is a separate, regulated product, so check how TGA rules and the current Poisons Standard apply to your organisation's purchasing.

BAC water for sale in Perth, Melbourne, Brisbane and Sydney

Orders are dispatched from Australian stock to Perth, Melbourne, Brisbane, Sydney, Adelaide, the Gold Coast and everywhere else in Australia, usually alongside the peptides the diluent will be used with. Popular pairings include Retatrutide, BPC-157 and TB-500, and the full range of diluents and kits is in lab supplies and kits.

Questions about BAC Water Bacteriostatic 30mL