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341738

Sigma-Aldrich

Sulforhodamine B, acid form

laser grade, Dye content 95 %

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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

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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.

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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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
Y Fujinami et al.
Caries research, 45(6), 561-567 (2011-11-10)
Passive smoking is the involuntary inhalation of cigarette smoke (CS) and has an adverse impact on oral health. We examined the effect of CS exposure on caries risk and experimental dental caries. Experimental dental caries was induced in rat maxillary
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
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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