by Welch Materials
Welch Materials has four kinds of polymer coated chiral columns based on silica, including Ultisil Chiral AD, Chiral AS, Chiral OD and Chiral OJ. 80% of all racemic compounds could be separated by those four chiral columns. Chiral AD and Chiral OD are the most used chiral columns.
Key characteristics of Ultisil Chiral columns:
| Vendor | Welch Materials | Particle Size | |
| Brand | Ultisil Chiral OJ | Length | |
| Modifification | Cellulose-tris[4-Methylbenzoate] coated silica | Internal Diameter | |
| Mode | Chiral |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| Welch Materials | Ultisil Chiral OJ | Chiral | Cellulose-tris[4-Methylbenzoate] coated silica | 4.6 mm | 250 mm | 5.0 μm | — | On request |
| Welch Materials | Ultisil Chiral OJ | Chiral | Cellulose-tris[4-Methylbenzoate] coated silica | 4.6 mm | 150 mm | 5.0 μm | — | On request |
| Welch Materials | Ultisil Chiral OJ | Chiral | Cellulose-tris[4-Methylbenzoate] coated silica | 4.6 mm | 250 mm | 10.0 μm | — | On request |
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