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94506

Sigma-Aldrich

Tetramethylrhodamine-5-maleimide

suitable for fluorescence, ≥85% (HPLC)

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About This Item

Empirical Formula (Hill Notation):
C28H23N3O5
CAS Number:
174568-67-3
Molecular Weight:
481.50
MDL number:
MFCD01311091
UNSPSC Code:
12352116
NACRES:
NA.32

Assay

≥85% (HPLC)

form

powder

solubility

DMSO: soluble
methanol: soluble

fluorescence

λex 543 nm; λem 575 nm in 0.1 M phosphate pH 7.0

suitability

suitable for fluorescence

storage temp.

−20°C

InChI

1S/C28H25N3O5/c1-29(2)16-5-9-20-23(14-16)36-24-15-17(30(3)4)6-10-21(24)27(20)19-8-7-18(13-22(19)28(34)35)31-25(32)11-12-26(31)33/h5-9,11-15H,10H2,1-4H3,(H,34,35)

InChI key

KGFLZYXDJDOIEE-UHFFFAOYSA-N

Application

Tetramethylrhodamine-5-maleimide has been used:
  • to concentrate the eluate and in labeling to create IRE1LDS112C
  • to derivatize green fluorescent protein (GFP) on Cys48 for experiments with the extrinsic fluorescent probe
  • to incubate the single solvent exposed cys mutant to perform protein labeling

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

Labeling reagent for protein thiols for cytofluorescence

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Effect of the point mutation H148G on GFPmut2 unfolding kinetics by fluorescence spectroscopy
Bosisio C, et al.
Biophysical Chemistry, 157(1-3), 24-32 (2011)
Cytofluorescence techniques for the visualization of distinct pools of protein thiols at the single cell level.
Alfonso Pompella et al.
Methods in molecular biology (Clifton, N.J.), 196, 305-312 (2002-08-03)
Specific stereochemistry of OP-1074 disrupts estrogen receptor alpha helix 12 and confers pure antiestrogenic activity
Fanning SW, et al.,
Nature Communications, 9(1), 2368-2368 (2018)
A J-protein co-chaperone recruits BiP to monomerize IRE1 and repress the unfolded protein response
Amin-WN, et al.
Cell, 171(7), 1625-1637 (2017)

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