Streptavidin, AMCA

SKU Unit Size Price Qty
SA-5008-1 1 mg
See our distributors

To request a quote for products:

  1. Click “Contact Us” in the header bar above;
  2. Click “Customer Service”;
  3. Complete the form and provide the following information in the “Comments” section: note you would like a quote, item number (SKU) and quantity;
  4. Click “Submit”.


AMCA Streptavidin is produced by conjugating streptavidin with a coumarin fluorescent dye, 7-amino-4-methylcoumarin-3-acetic acid. This derivative excites in the ultraviolet (350 nm) and emits in the visible (450 nm) producing an intense blue fluorescence.

Amplification of fluorescent signals can be easily achieved with our biotinylated secondary antibodies followed by our highly purified fluorochrome-labeled streptavidin or avidin. Using a biotin/avidin or biotin/streptavidin detection system results in an additional layer of amplification over a directly conjugated secondary antibody.


  • Recommended for routine immunofluorescence applications
  • Highly purified and possesses very low non-specific binding properties
  • Extremely high affinity for biotin
  • Has a high fluorochrome to protein ratio
  • Compared to conventional primary and secondary fluorescent techniques, can provide greater sensitivity and lower background staining


More Information
Unit Size 1 mg
Applications Immunofluorescence, In situ hybridization, Flow Cytometry/Cell Separation
Recommended Usage For diluting this product, we recommend a HEPES- or biocarbonate-buffered saline solution, approximately pH 8.2.Avoid using RPMI 1640 or other biotin-containing solutions as diluents.Serum also can contain biotin and should not be added to diluents. The recommended concentration range for use is 10-30 µg/ml.
Solution 10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide
Maximum Excitation 345-355 nm
Maximum Emission 448-454 nm
Recommended Storage 2-8 °C
Concentration 1.0 mg/ml
Conjugate AMCA
Color of Fluorescence Blue
Format Concentrate



Technical Information

Vector Laboratories fluorochrome-conjugated streptavidin and avidin reagents are highly purified and possess very low non-specific binding properties. They have extremely high affinity for biotin. These fluorescent conjugates can be used to detect biotinylated secondary antibodies and other macromolecules in applications such as immunofluorescence, in situ hybridization, or flow cytometry.

Most paraffin-embedded tissues have little autofluorescence under those conditions. AMCA Streptavidin may provide an advantage in many labeling situations over conjugates of fluorescein and related dyes. AMCA Streptavidin can be used on frozen or paraffin-embedded sections as a single label or in combination with other fluorescent conjugates for multiple labeling studies.

Home All Products Fluorophore Conjugated Avidin/Streptavidin Streptavidin, AMCA