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Vector Laboratories is closed for the President’s Day on Monday, February 19th. We will be back in the office on Tuesday, February 20th.
We will respond to emails upon our return. Have a wonderful day.
Bis-dPEG®3-NHS ester, product number QBD-10726, is a homobifunctional, amine-reactive, crosslinking reagent. Each end of the short (13 atoms, 14.6 Å), single molecular weight, discrete PEG (dPEG®) linker is functionalized as the N-hydroxysuccinimidyl (NHS) ester of a propionic acid group. The optimal pH range for reacting the end groups is 7.0 – 7.5. The product is soluble in water and many organic solvents; however, in water, it hydrolyzes rapidly. Therefore, we advise against storing aqueous stock solutions of this product. Rather, unused material in aqueous media should be discarded promptly.
| Unit Size | 100mg, 1000mg |
|---|---|
| Molecular Weight | 444.39; single compound |
| Chemical formula | C₁₈H₂₄N₂O₁₁ |
| CAS | 1314378-16-9 |
| Purity | > 98% |
| Spacers | dPEG® Spacer is 13 atoms and 14.6 Å |
| Shipping | Ambient |
| Typical solubility properties (for additional information contact Customer Support) | Methylene chloride, Acetonitrile, DMAC or DMSO. |
| Storage and handling | -20°C; Always let come to room temperature before opening; be careful to limit exposure to moisture and restore under an inert atmosphere; stock solutions can be prepared with dry solvent and kept for several days (freeze when not in use). dPEG® pegylation compounds are generally hygroscopic and should be treated as such. This will be less noticeable with liquids, but the solids will become tacky and difficult to manipulate, if care is not taken to minimize air exposure. |
Greg T. Hermanson, Bioconjugate Techniques, 3rd Edition, Elsevier, Waltham, MA 02451, 2013, ISBN 978-0-12-382239-0; See Chapter 18, Discrete PEG Reagents, pp. 787-821, for a full overview of the dPEG® products.
Applicable patents and legal notices are available at legal notices.
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