| SKU | Size | Availability | Price | Qty |
|---|---|---|---|---|
| S487830-25mg | 25mg | Available within 8-12 weeks(?) Production requires sourcing of materials. We appreciate your patience and understanding. | $187.90 | |
| S487830-100mg | 100mg | 1 | $599.90 |
| Storage Temp | Store at -20°C,Argon charged,Desiccated |
|---|---|
| Shipped In | Ice chest + Ice pads |
| Note | This product is very sensitive to moisture. The small bottles are packaged in resealable bags with desiccants to reduce moisture exposure. After refrigeration, balance the vial to room temperature before opening to reduce condensation inside the vial. Prepare a new solution. It is not recommended to store the original solution. After use, place the small bottle back in a resealable bag. Close the bag and store the product at the recommended temperature. |
| Product Description | SM(PEG)n NHS- and maleimide-activated PEG compounds for crosslinking between primary amines (NH2) and sulfhydryl (SH) groups in proteins and other molecules. A complete set of compounds are offered, each having the same heterobifunctional structure (NHS-PEGn-Maleimide) but differing in the number of discrete ethylene glycol units ( n = 2, 4, 6, 8, 12 or 24). The N-hydroxysuccinimide ester (NHS) group reacts specifically and efficiently with lysine and N-terminal amino groups at pH 7-9 to form stable amide bonds. The maleimide group reacts with reduced sulfhydryls at pH 6.5-7.5 to form stable thioether bondsSM(PEG)24 can be used as a crosslinker in:The study of chemical cross-linking of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and RNAses using the high-mass MALDI-MS technique.Preparation of protein G-liposomal nanovesicles applicable as sensors in the detection of gentamycin in the milk sample.Conjugation of catalase to streptavidin, which is helpful in the detection of analytes at very low concentrations using ELISA technique. |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 F2505421 | Certificate of Analysis | May 22, 2025 | S487830 |
| F2505422 | Certificate of Analysis | May 22, 2025 | S487830 |
| F2505423 | Certificate of Analysis | May 22, 2025 | S487830 |
| K2412563 | Certificate of Analysis | Nov 01, 2024 | S487830 |
| G2419408 | Certificate of Analysis | Jun 14, 2024 | S487830 |
| G2419412 | Certificate of Analysis | Jun 14, 2024 | S487830 |
| K2322201 | Certificate of Analysis | Nov 14, 2023 | S487830 |
| Sensitivity | Moisture sensitive |
|---|
| Appearance(S487830) | White to off-white to pale yellow waxy solid |
|---|---|
| Molecular Weight | Conforms |
| Proton NMR spectrum | Conforms to Structure |
Starting at $1,063.90
