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76245

Sigma-Aldrich

Atto 655 NHS ester

BioReagent, suitable for fluorescence

MDL number:
PubChem Substance ID:
NACRES:
NA.32

product line

BioReagent

Assay

≥90.0% (HPLC)

form

powder

manufacturer/tradename

ATTO-TEC GmbH

extent of labeling

≥90.0%

λ

in ethanol (with 0.1% trifluoroacetic acid)

UV absorption

λ: 650.0-656.0 nm Amax

suitability

suitable for coupling to amines
suitable for fluorescence

storage temp.

−20°C

InChI

1S/C31H36N4O8S/c1-4-33-11-5-7-19-13-22-26(15-24(19)33)42-27-16-25-21(14-23(27)32-22)20(18-44(39,40)41)17-31(2,3)34(25)12-6-8-30(38)43-35-28(36)9-10-29(35)37/h13-16,20H,4-12,17-18H2,1-3H3

Inchi Key

SPDKWNQUMMQOKX-UHFFFAOYSA-N

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Atto 655 NHS ester

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product line

BioReagent

product line

BioReagent

product line

BioReagent

product line

BioReagent

assay

≥90.0% (HPLC)

assay

≥90.0% (HPLC), ≥90.0% (degree of coupling)

assay

≥90.0% (HPLC)

assay

≥90% (coupling to amines)

form

powder

form

powder

form

powder

form

-

suitability

suitable for coupling to amines, suitable for fluorescence

suitability

-

suitability

-

suitability

-

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

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.

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.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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