Chelex® 100 sodium form
SIGMA/C7901 - 50-100 mesh (dry)
Synonym: Iminodiacetic Acid Resin
CAS Number: 11139-85-8
MDL Number: MFCD00163980
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: C7901-100G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: C7901-50G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: C7901-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: C7901-25G
| capacity | ≥0.3 meq/mL binding capacity |
| 0.6 meq/g binding capacity (heavy metal ions) | |
| form | beads |
| matrix | 1% cross-linked polystyrene |
| cross-linked polystyrene beads | |
| matrix active group | iminodiacetic acid (sodium form) |
| paired iminodiacetate groups | |
| matrix attachment | through methyl group to aromatic rings |
| particle size | 50-100 mesh (dry) |
| pH | 4-14 |
| Quality Level | 200  |
| Application: | Chelex is used in affinity chromatography, protein chromatography, chelating resins, affinity resins and core bioreagents. |
| Application: | Chelex® 100 sodium form has been used: • for the extraction of DNA from bee samples • to remove from cigarette smoke extract (CSE) and study the effects of hepcidin expression in the murine lungs • to extract DNA from bacterial cultures |
| Biochem/physiol Actions: | Chelex® 100 is a styrene-divinylbenzene copolymer containing paired iminodiacetate ions, which act as chelating groups in binding polyvalent metal ions. It is considered a weakly acidic resin. Chelex acts as a chelating resin that is used in DNA extraction from forensic samples, such as hair, bloodstain cards, and buccal swabs. |
| Legal Information: | Chelex is a registered trademark of Bio-Rad Laboratories, Inc. |
| Other Notes: | Product is autoclavable in sodium form. It has a maximum operating temperature of 75°C and is not soluble in water. |
| Packaging: | 25, 50, 100, 500 g in poly bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| UNSPSC | 23151817 |