Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

341738

Sigma-Aldrich

Sulforhodamine B, acid form

laser grade, Dye content 95 %

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

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

Looking for similar products? Visit Product Comparison Guide

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.

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCL1013
20223EA
05605DC
04920EQ
11917BU

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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
Samantha N Andrews et al.
Pharmaceutical research, 30(4), 1099-1109 (2012-12-01)
Most methods to increase transdermal drug delivery focus on increasing stratum corneum permeability, without addressing the need to increase permeability of viable epidermis. Here, we assess the hypothesis that viable epidermis offers a significant permeability barrier that becomes rate limiting
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
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
View All Related Papers

Articles

Fluorescence Quenching Microscopy

Fluorescence quenching microscopy visualizes 2D materials like graphene and MoS2 rapidly, inexpensively, and with high fidelity.

Fluorescence Quenching Microscopy

Fluorescence quenching microscopy visualizes 2D materials like graphene and MoS2 rapidly, inexpensively, and with high fidelity.

Fluorescence Quenching Microscopy

Fluorescence quenching microscopy visualizes 2D materials like graphene and MoS2 rapidly, inexpensively, and with high fidelity.

Fluorescence Quenching Microscopy

Fluorescence quenching microscopy visualizes 2D materials like graphene and MoS2 rapidly, inexpensively, and with high fidelity.

See All

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service