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Supplies · research grade

Syringes, 31 G × 5/16 in — box of 100

1 mL graduated barrel, fixed 31-gauge 5/16-inch needle. 100 per box.

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Peprise sells to qualified researchers. Creating an account takes about a minute and records the confirmations we are required to keep.

Purity Not yet assayed
Current lot shipping
Documents COA not yet available View all COAs

A 1 mL barrel graduated in hundredths, with a fixed 31-gauge, 5/16-inch (8 mm) needle. Sterile, individually wrapped, single use. One hundred to a box.

Specification
Purity Not yet assayed
Current lot shipping LOT
Intended use Laboratory research only

Why don’t you show prices?

Because we don’t show them until you’ve told us you’re a researcher. That is the whole point of the account.

You confirm you are 21 or older, and that nothing you buy will be used in or on humans or animals. It takes about a minute, it costs nothing, and your confirmation stays current for 12 months.

Everything else stays open. Every compound, every purity figure and every lot number is readable without an account — we hold back the numbers you would order from, not the evidence you would check us on.

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Certificate of analysis

Check the lot number here against the one printed on your vial. They have to match. Open in a new tab ↗ Download

How ordering works

  1. Choose your products

    Select the size and quantity, then add the products to your order. Sign in or create an account and complete the research-use confirmation when prompted.

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  4. Payment confirmation and shipping

    Your order stays on hold while we verify payment. Once payment is confirmed, we prepare it for shipment. Check your email and account for order updates.

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