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C2734

Sigma-Aldrich

5-Carboxytetramethylrhodamine

≥95% purity (HPLC), solid

Synonym(s):

5-TAMRA

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About This Item

Empirical Formula (Hill Notation):
C25H22N2O5
CAS Number:
91809-66-4
Molecular Weight:
430.45
MDL number:
MFCD01073638
UNSPSC Code:
12171500
NACRES:
NA.47

product name

5-Carboxytetramethylrhodamine,

Assay

≥95% (HPLC)

Quality Level

100

form

solid

solubility

water: slightly soluble

ε (extinction coefficient)

≥85000-97000 at 539-545 nm in methanol

fluorescence

λex ~543 nm; λem ~570 nm in methanol

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

InChI

1S/C25H22N2O5/c1-26(2)15-6-9-18-21(12-15)32-22-13-16(27(3)4)7-10-19(22)23(18)17-8-5-14(24(28)29)11-20(17)25(30)31/h5-13H,1-4H3,(H-,28,29,30,31)

InChI key

YMZMTOFQCVHHFB-UHFFFAOYSA-N

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General description

An important fluorophore prepared in high purtity with a detection limit of TMR-labeled amino acids by capillary electrophoresis of approx. 600 molecules. Readily excited by the 546 nm spectral line from mercury-arc lamps used in fluorescent microscopes, and is intrinsically more photostable than fluorescein.

Application

5-Carboxytetramethylrhodamine has been used in fluorophore characterization.

Biochem/physiol Actions

5-Carboxytetramethylrhodamine can be covalently attached to the DNA and is thereby used in studies involving branched and duplex DNA/RNA structures. It is mainly used for single-molecule studies. 5-Carboxytetramethylrhodamine is also used for the labelling of oligosaccharide for laser-induced fluorescence detection.

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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