| Title | Unique chemicals | (Sub)structure | (Partial) Name |
Registry number |
CD-ROM |
|---|---|---|---|---|---|
| ABCR | over 13,000 organic intermediates (Avocado) | No | Yes | Yes | No |
| Acros Organics | Yes | Yes | Yes | No | |
| Aldrich | over 14,000 | Yes | Yes | Yes | No |
| Alfa Aesar | No | Yes | Yes | No | |
| Apollo Scientific Ltd | No | Yes | Yes | No |