C4-functionalized silica provides moderate hydrophobic interactions, making it ideal for biomolecules such as peptides and smaller proteins that require shorter retention and improved recovery compared to longer alkyl phases. The butyl-bonded surface delivers excellent peak shapes, stable performance, and reliable selectivity in reversed-phase chromatography.
| Name | Particle Sizes | Carbon Load | Pore Size |
|---|---|---|---|
| Exsil 300 Butyl | 3 – 10 µm | 300 Å | |
| Grom Sapphire 110 C4 | 5 µm | 110 Å | |
| GromSil 120 Butyl-1 ST | 3 – 10 µm | 120 Å | |
| GromSil 200 Butyl-1 ST | 3 – 10 µm | 200 Å | |
| GromSil 300 Butyl-1 ST | 3 – 10 µm | 300 Å | |
| GromSil 300 Butyl-2 FE | 3 – 5 µm | 300 Å | |
| Platinum 300 C4 | 3 – 10 µm | 300 Å | |
| Platinum 300 C4-EPS | 3 – 10 µm | 300 Å | |
| Prosphere 300 C4 | 3 – 10 µm | 6 % | 300 Å |
| Prosphere HP 300 C4 | 3 – 10 µm | 5 % | 300 Å |
| ReproSil 70 C4 | 5 µm | 10 % | 70 Å |
| ReproSil 100 C4 | 3 – 10 µm | 5 % | 100 Å |
| ReproSil 200 C4-Aqua | 5 µm | 200 Å | |
| ReproSil 300 C4 | 5 – 10 µm | 300 Å | |
| ReproSil Gold 120 C4 | 3 – 20 µm | 8 % | 120 Å |
| ReproSil Gold 200 C4 | 3 – 10 µm | 5 % | 200 Å |
| ReproSil Gold 300 C4 | 3 – 15 µm | 3 % | 300 Å |
| ReproSil-Pur 120 C4 | 3 – 20 µm | 7 % | 120 Å |
| ReproSil-Pur 300 C4 | 3 – 10 µm | 2.5 % | 300 Å |
| ReproSil Saphir 100 C4 | 5 – 10 µm | 8 % | 100 Å |
| ReproSil-XR 120 C4 | 3 – 10 µm | 5 % | 120 Å |
| ReproSil-XR 300 C4 | 3 – 10 µm | 3 % | 300 Å |
| Reprospher 100 C4 | 1.8 – 5 µm | 6 % | 100 Å |
| Reprospher 100 C4-Aqua | 5 – 30 µm | 6 % | 100 Å |
| Reprospher 100 C4-DE | 5 µm | 7 % | 100 Å |
| Reprospher 300 C4 | 1.8 – 5 µm | 2.5 % | 300 Å |
| Reprospher 300 C4-Aqua | 1.8 – 5 µm | 3 % | 300 Å |
| Reprospher 300 C4-DE | 2.5 – 5 µm | 3 % | 300 Å |
| Reprospher 300 C4-T | 5 µm | 4 % | 300 Å |
| Reprospher 300 C4-TN | 5 µm | 4 % | 300 Å |
| Ultrasep ES 100 RP4 | 5 – 10 µm | 100 Å |