Skip to Content
MilliporeSigma

Key Documents

View All Documentation

Skip To

51146

Atto 550 Protein Labeling Kit

BioReagent, suitable for fluorescence

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View
Size/SKUAvailabilityPrice
1 kit

Estimated to ship onSeptember 22, 2026fromSAINT LOUIS

$863.00

About This Item

NACRES:
NA.32
UNSPSC Code:
12352200
Storage temp.:
2-8°C

$863.00

Estimated to ship onSeptember 22, 2026Details

​
Request a Custom Order
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

product line

BioReagent

Quality Segment

100

manufacturer/tradename

ATTO-TEC GmbH

fluorescence

λex 544 nm; λem 576 nm in 0.1 M phosphate buffer, pH 7.0 (recommended)

suitability

suitable for fluorescence

storage temp.

2-8°C

General description

This kit contains sufficient amounts of reactive dye, buffers and protein purification sets for performing five labeling reactions (1 mg protein each) and for the subsequent purification of the labeled protein.

Application

Atto fluorescent labels are designed for high sensitivity applications, including single molecule detection. Atto labels have rigid structures that do not show any cis-trans-isomerization. Thus these labels display exceptional intensity with minimal spectral shift on conjugation. Atto 550, which is similar to Cy3, may be useful in applications such as fluorescence resonance energy transfer (FRET) and as a tag for molecules such as secondary antibodies. Atto 550 Protein Labeling Kit contains Atto 550 succinimidyl ester which enables conjugation of Atto 550 to the primary amino groups of the proteins and other molecules.

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.

Compare Similar Items

View Full Comparison

Show Differences

1 of 1

This Item
686167650838371
Sigma-Aldrich

Sigma-Aldrich

51146

Atto 550 Protein Labeling Kit

Sigma-Aldrich

Sigma-Aldrich

68616

Atto 594 Protein Labeling Kit

Sigma-Aldrich

Sigma-Aldrich

76508

Atto 647N Protein Labeling Kit

Sigma-Aldrich

Sigma-Aldrich

38371

Atto 488 Protein Labeling Kit

description

BioReagent, suitable for fluorescence

description

BioReagent, suitable for fluorescence

description

BioReagent, suitable for fluorescence

description

BioReagent, suitable for fluorescence

manufacturer/tradename

ATTO-TEC GmbH

manufacturer/tradename

ATTO-TEC GmbH

manufacturer/tradename

ATTO-TEC GmbH

manufacturer/tradename

ATTO-TEC GmbH

fluorescence

λex 544 nm; λem 576 nm in 0.1 M phosphate buffer, pH 7.0 (recommended)

fluorescence

λex 594 nm; λem 625 nm in 0.1 M phosphate buffer, pH 7.0 (recommended)

fluorescence

λex 647 nm; λem 661 nm in 0.1 M phosphate buffer, pH 7.0 (recommended)

fluorescence

λex 488 nm; λem 520 nm in 0.1 M phosphate buffer, pH 7.0 (recommended)

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

storage temp.

2-8°C

storage temp.

−20°C

storage temp.

2-8°C

storage temp.

2-8°C

product line

BioReagent

product line

BioReagent

product line

BioReagent

product line

BioReagent

suitability

suitable for fluorescence

suitability

suitable for fluorescence

suitability

suitable for fluorescence

suitability

suitable for fluorescence

Storage Class

10 - Combustible liquids

wgk

WGK 3

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Questions

Reviews

No rating value

Active Filters