Atto 488 maleimide
SIGMA/28562 - BioReagent, suitable for fluorescence, ≥90% (HPLC)
Synonym: Atto 488
MDL Number: MFCD07784936
Product Type: Chemical
| λ | in methanol: water (1:1) (with 0.1% perchloric acid) |
| assay | ≥90% (degree of coupling ) |
| ≥90% (HPLC) | |
| manufacturer/tradename | ATTO-TEC GmbH |
| product line | BioReagent |
| Quality Level | 100  |
| storage temp. | −20°C |
| suitability | suitable for fluorescence |
| UV absorption | λ: 501-506 nm Amax |
| Application: | Atto 488 Maleimide is used for labelling amines, which usually requires a higher pH than the reaction of maleimides with thiols. It is a well-suited fluorescent label for thiol groups. |
| General description: | Atto 488 Maleimide is a hydrophilic fluorescent label with high molecular absorption (90.000) and quantum yield (0.80). The fluorescence activity is excited at a maximum of 501nm, and the maximum emission is 523nm. Atto 488 Maleimide is optimized for argon laser excitation and characterized by high photostability. Hydrolysis of maleimides to a mixture of isomeric nonreactive maleamic acids can compete significantly with thiol modification, particularly above pH 8. Post coupling to a substrate, the label carries a net electrical charge of -1. |
| Legal Information: | This product is for Research use only. In case of intended commercialization, please contact the IP-holder (ATTO-TEC GmbH, Germany) for licensing. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥90% (HPLC); ≥90% (degree of coupling ) |
| Storage Temp. | −20°C |
| UNSPSC | 12352111 |