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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.
Universal Black 3 Quencher (UBQ-3, Black Hole Quencher®-3 (BHQ®-3) equivalent) is a dark, far-red nonfluorescent acceptor dye with no native emission. UBQ-3 is often used as an acceptor for preparation of fluorogenic dual-labeled probes, qPCR probes, and for other fluorescence-quenched probe applications. A broad and intense quenching range from 620-730 nm makes it useful as an acceptor in fluorescence resonance energy transfer (FRET) applications in conjunction with far-red to near-IR emitting dyes such as Cy5, Cy5.5, Alexa Fluor® 633, 647, 700, IRDye® 650, 680 and 700.
UBQ-3 is structurally identical to BHQ®-3.
UBQ-3 DBCO reacts with azides via a copper-free “click chemistry” reaction to form a stable triazole and does not require Cu-catalyst or elevated temperatures. Often a reagent of choice for labeling intact proteins, lipids and peptides where the presence of cytotoxic copper catalyst is not acceptable.
| Unit Size | 5 mg, 25 mg, 100 mg |
|---|---|
| Reactivity | Primary amine |
| Abs/Em Maxima | 615 nm |
| Extinction coefficient | 40,700 cm-1M-1 |
| Solubility | DMSO, DMF |
| Spectrally similar dyes | Cy5, Cy5.5, Alexa Fluor® 647, 680, 700, IRDye® 650, 680, 700 |
| Molecular weight | 958.15 |
| Storage Conditions | -20°C. |
| Shipping Conditions | Ambient temperature |
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