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341738

Sigma-Aldrich

Sulforhodamine B, acid form

laser grade, Dye content 95 %

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Empirical Formula (Hill Notation):
C27H30N2O7S2
CAS Number:
2609-88-3
Molecular Weight:
558.67
EC Number:
220-025-2
MDL number:
MFCD00067690
UNSPSC Code:
12352103
PubChem Substance ID:
57649121
NACRES:
NA.23

grade

laser grade

Quality Level

200

form

solid

composition

Dye content, 95%

mp

>300 °C (lit.)

λmax

558 nm

SMILES string

CCN(CC)c1ccc2c(OC3=CC(\C=CC3=C2c4ccc(cc4S([O-])(=O)=O)S(O)(=O)=O)=[N+](/CC)CC)c1

InChI

1S/C27H30N2O7S2/c1-5-28(6-2)18-9-12-21-24(15-18)36-25-16-19(29(7-3)8-4)10-13-22(25)27(21)23-14-11-20(37(30,31)32)17-26(23)38(33,34)35/h9-17H,5-8H2,1-4H3,(H-,30,31,32,33,34,35)

InChI key

IOOMXAQUNPWDLL-UHFFFAOYSA-N

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General description

Sulforhodamine B (SRB) is a fluorescent protein dye. It was reported that the dye binds itself to the amino acid residues of tricholoroacetic acid fixed cells in mild basic conditions and extracts itself into the solution under mild acidic conditions.

Application

pH sensitive of SRB towards it reactivity to living cells renders it useful for scaling drug induced cytotoxicity and cell proliferations. SRB assay was used to monitor the enzymatic activity of living cells.

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)

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Efficacy of 5-FU or Oxaliplatin Monotherapy over Combination Therapy in Colorectal Cancer.
Toloudi M, et al.
Journal of Cancer Therapy, 6(4), 345-345 (2015)
Wieland Voigt
Methods in molecular medicine, 110, 39-48 (2005-05-20)
The sulforhodamine B (SRB) assay was developed by Skehan and colleagues to measure drug-induced cytotoxicity and cell proliferation for large-scale drug-screening applications. Its principle is based on the ability of the protein dye sulforhodamine B to bind electrostatically and pH
Vivek Gupta et al.
PloS one, 8(2), e57136-e57136 (2013-03-14)
Caco-2 monolayers are one of the most widely used in vitro models for prediction of intestinal permeability of therapeutic molecules. However, the conventional Caco-2 monolayer model has several drawbacks including labor-intensive culture process, unphysiological growth conditions, lack of reproducibility and
Zaichang Yang et al.
Phytomedicine : international journal of phytotherapy and phytopharmacology, 19(3-4), 301-305 (2012-01-14)
Fissistigma cavaleriei (Levl) Rehd (Annonaceae) is used as a folklore medicine for treatment of inflammation, arthritis, and tuberculosis by Miao people in China. In the present study, the antiangiogenic activity of F. cavaleriei was investigated. The chorioallantoic membrane of the
Jayshree K Khedkar et al.
Journal of molecular modeling, 18(8), 3743-3750 (2012-03-07)
The binding of the laser dyes rhodamine B (RhB) and sulforhodamine B (kiton red S or KRS) to a cucurbit[7]uril (CB[7]) host has been investigated using density functional theory. Both guests (RhB and KRS) contain two N,N-diethylamino groups on a
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