Insulin syringes 1 mL, 31G x 8 mm, U-100 (pack of 10)
31G x 8 mm, U-100, pack of 10
Fixed-needle 1 mL U-100 syringes, 31 gauge, individually sealed.
What they are
Standard 1 mL U-100 insulin syringes with a fixed 31-gauge, 8 mm needle, individually sealed, sold in packs of ten. The U-100 scale reads 100 units per millilitre, so each unit is 0.01 mL, which is the scale used throughout the peptide literature and in our calculator.
Why 1 mL and 31G
A 1 mL barrel gives the widest useful range for measuring reconstituted solutions; 0.5 mL and 0.3 mL syringes exist but limit the volume. 31G is fine enough to puncture a vial stopper cleanly many times without coring it. The fixed needle has minimal dead space, so less solution is wasted per draw.
A 31G insulin syringe with a 1ml barrel is the configuration used for almost all peptide reconstitution work, which is why we stock this one size.
Using them in the laboratory
Swab the stopper, draw the required units, expel air, and use once. Sharps go in a proper sharps container, never household waste. Sold as laboratory consumables.
Sizes and pricing
- Insulin Syringes 1 mL Pack of 10: £6.99. SKU SYR-10.
Prices include VAT. Shipping is £4.95 by Royal Mail Tracked 24, free on orders over £100. Ships from UK stock with the lot certificate for the vial you receive.
Quality and testing
Each lot of Insulin Syringes 1 mL is sent to an independent UK laboratory before release for identity by mass spectrometry, purity by HPLC, residual solvents and bacterial endotoxin. The lot number on the vial label matches the certificate on our certificates page, and no lot is released for sale until the certificate is in hand. Specification: Sterile, individually sealed, supplied as pack of 10.
Lot traceability
Every Insulin Syringes 1 mL vial carries a printed lot number and expiry. The same lot number appears on the certificate of analysis for that batch, which names the testing laboratory and the report number so it can be verified directly. If the number on your vial does not match a certificate on our site, contact support before using it. Certificates are kept online for the life of the product plus two years.
Related products
Bacteriostatic Water, Alcohol Prep Swabs, BPC-157, and everything else in Water & Accessories or the full range. Reconstitution supplies: bacteriostatic water, insulin syringes and alcohol swabs.
Handling and storage
Room temperature. Keep sealed until use. Allow the vial to reach room temperature before opening to avoid condensation on the powder. Reconstitute with bacteriostatic water added slowly down the wall of the vial; do not shake. Our calculator covers the arithmetic.
100 units per mL: one unit on the scale is 0.01 mL. The calculator reports volumes in these units.
Yes, individually sealed and single-use.
Yes. They are sold as laboratory consumables in packs of ten.
In a sharps bin. UK councils and pharmacies run sharps disposal schemes.
