elentoo

Why antibody identity matters

The same antibody is sold under dozens of names. Elentoo resolves each product back to the one thing that actually matters — the clone — so you can compare prices across vendors, cite the reagent you really used, and reproduce the experiment you meant to run.

The problem: irreproducible reagents

A paper that cites "anti-CD4 antibody" doesn't tell you which of the thousands of CD4 antibodies it used. Vendors rename the same clone, catalog numbers change, and the identical reagent sells under different product names at wildly different prices. When a lab can't tell which reagent was used, experiments can't be repeated — and that is one of the biggest documented problems in biomedical research.

What a clone is (and why it matters)

An antibody's identity is four things: the target it binds (e.g. CD44), the clone (the specific antibody-producing cell line, e.g. IM7), the host it was raised in, and the conjugate (the fluorescent dye or enzyme attached to it, if any). Two products with the same clone are the same antibody. Two products with different clones are different reagents — even if they share a target and a catalog description.

Why prices are all over the place

A 25 µg vial from one vendor and a 1 mg vial from another can't be compared head-to-head. Elentoo normalizes every offer to a price per µg so the comparison is real, and groups every offer by clone so you are always comparing the same reagent across vendors.

How Elentoo works

  1. We match each product to a canonical reagent — target, clone, host, and conjugate.
  2. We resolve that reagent against the Antibody Registry (RRID) when a record exists.
  3. We list every vendor offer side by side with a normalized per-µg price.
  4. We refresh prices weekly from public vendor pages and the feeds vendors provide.

Evidence, not just prices

For some antibodies, Elentoo also surfaces experimental evidence — western blot and immunofluorescence images contributed by the Only Good Antibodies project (CC BY 4.0) — directly on search results and clone pages, marked with a 🧪 evidence chip. We don't perform validation ourselves; we link you to the evidence so you can judge it.

And when a publication's methods section cites an exact catalog number, the offer gets a 📚 chip linking to the matching papers — powered by Europe PMC full-text search over the open-access literature.

Try it

Search for CD44 to see clones like IM7, E7K2Y, and HERMES-1 side by side, or open the IM7 clone page to compare conjugates across vendors.

What Elentoo is not

We are not a vendor, not a marketplace, and not affiliated with any supplier. We don't sell rank — results are ordered by match quality and price. We don't charge to list. Outbound links go straight to the vendor's store, and some may be affiliate links. Prices come from public pages and may be stale; always confirm before ordering.

Citing antibodies correctly

When you publish, cite the vendor, catalog number, and RRID when available — e.g. anti-CD44 (clone IM7, BioLegend, Cat# 103001, RRID:AB_312956). The Antibody Registry assigns RRIDs; matching your catalog number to an RRID is the single most effective thing a lab can do for reproducibility.