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28616

Sigma-Aldrich

Atto 425-Biotin

BioReagent, suitable for fluorescence, ≥95.0% (HPCE)

Synonym(s):
Biotin-Atto 425
Empirical Formula (Hill Notation):
C37H53N5O7S
Molecular Weight:
711.91
MDL number:
eCl@ss:
34058011
PubChem Substance ID:
NACRES:
NA.32

Quality Level

product line

BioReagent

assay

≥95.0% (HPCE)

form

powder

manufacturer/tradename

ATTO-TEC GmbH

fluorescence

λex 437 nm; λem 483 nm in 0.1 M phosphate pH 7.0

suitability

suitable for fluorescence

storage temp.

−20°C

SMILES string

CCOC(=O)C1=Cc2cc3C(C)CC(C)(C)N(CCCC(=O)NCCCCCNC(=O)CCCCC4SCC5NC(=O)NC45)c3cc2OC1=O

InChI

1S/C37H53N5O7S/c1-5-48-34(45)26-19-24-18-25-23(2)21-37(3,4)42(28(25)20-29(24)49-35(26)46)17-11-14-32(44)39-16-10-6-9-15-38-31(43)13-8-7-12-30-33-27(22-50-30)40-36(47)41-33/h18-20,23,27,30,33H,5-17,21-22H2,1-4H3,(H,38,43)(H,39,44)(H2,40,41,47)

InChI key

LPVYZZMUDCZDQO-UHFFFAOYSA-N

General description

Atto 425 is a new label with high quantum yield (0.90) as well as sufficient stoke′s shift (excitation maximum 436 nm, emission maximum 484 nm). It is optimized for excitation with argon laser, and is characterized by high photostability. It does nearly not show cis-trans-isomerization, which limits brightness and reproducibility for many other dyes.

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 425 biotin is suitable for fluorescence labeling of avidin/streptavidin conjugated 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.

Storage Class Code

13 - Non 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

Certificate of Analysis

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Certificate of Origin

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