TRANSPARENT BY DESIGN
Catalog coverage and research evidence
A transparent audit of the supplied NEB and Zymo catalogs.
Source documents and row-level extracts are confidential and are not published. Aggregate coverage is shown below.
Zymo catalog coverage.
1,126 of 1,126 catalog-number rows mapped. 9 historical catalog entries still lack a verified exact product webpage.
NEB source categories accounted for.
| Original source category | Source rows | Mapped | Coverage |
|---|---|---|---|
| Modifying Enzymes | 222 | 222 | 100% |
| RNA_Technologies | 105 | 105 | 100% |
| SeqTechnologies | 183 | 183 | 100% |
| PCR_DNA_Amplification | 179 | 179 | 100% |
| Protein Tools | 169 | 169 | 100% |
| Restriction Enzymes | 528 | 528 | 100% |
| LabReagents | 91 | 91 | 100% |
| Molweight Standards | 57 | 57 | 100% |
| Nucleic Acids, etc. | 32 | 32 | 100% |
| Competent Cells | 39 | 39 | 100% |
| Consumables | 1 | 1 | 100% |
| Synthetic_Biology | 14 | 14 | 100% |
Alternative coverage is a separate measure.
2852 product records from other manufacturers. 645 of 1436 leaf categories have candidate listings from multiple manufacturers.
All supplied NEB products are categorized. Cross-manufacturer alternatives are not yet exhaustive. Categories with a single supplier state that gap rather than inventing replacements.
Latest research pass
Round 2: 339 new products across 199 existing final categories, with 34 additional narrow format categories. 50 of these categories gained no products in the preceding pass.
255 categories have documented research in this round. Manufacturer evidence supports candidate classification, not guaranteed interchangeability.
Research expansion totals
Reviewed 2026-11-06: 1408 final categories checked, 1249 distinct products added and 525 existing final categories enriched. 79 additional narrow categories keep differing enzyme identities and formulations separate.
836 reviewed categories did not gain a supported new product. These remain research gaps, not evidence that no alternative exists.
Download the complete expansion audit ↓
Original category research audit.
516 of the original 847 categories have a non-NEB listing. This counts indexed candidates, not validated experimental replacements. 847 categories have a written research audit.
3882 of 3894 product records have an official manufacturer product-page link.
Download category research and evidence ↓Download current final-category coverage ↓
Exact product-page gaps.
These source records remain indexed, with available documentation. A related product is not substituted for an unverified exact webpage.
- 5X All-In-One RT MasterMix · Applied Biological Materials
- RT Master Mix for qPCR · MedChemExpress
- Zymo-Spin™ IIC-XL (25 Pack) · Zymo Research
- Zymo-Spin™ IIC-XL (50 Pack) · Zymo Research
- 2X Test Reaction PreMix · Zymo Research
- 2X Reference Reaction PreMix · Zymo Research
- 2X Test Reaction-Lite PreMix · Zymo Research
- 2X Reference Reaction-Lite PreMix · Zymo Research
- DNA/RNA Shield™ Fecal Collection Kit CE-IVD · Zymo Research
- Urine Conditioning Buffer Plus (140 ml) · Zymo Research
- Urine Conditioning Buffer Plus (8 ml) · Zymo Research
- Hot Start Taq DNA Polymerase · Hibrigen
Pack variants may share a product page. Aggregate coverage includes repeated source entries; confidential source documents are not available for download.