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Merck

230162

Sulforhodamine B

Dye content 75 %

Synonym(s):

Acid Red 52, Sulforhodamine B monosodium salt

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About This Item

Empirical Formula (Hill Notation):
C27H29N2NaO7S2
CAS Number:
3520-42-1
Molecular Weight:
580.65
NACRES:
NA.47
PubChem Substance ID:
24853778
UNSPSC Code:
12171500
Colour Index Number:
45100
EC Number:
222-529-8
MDL number:
MFCD00010180
Beilstein/REAXYS Number:
3886008

Product Name

Sulforhodamine B, Dye content 75 %

InChI key

SXQCTESRRZBPHJ-UHFFFAOYSA-M

InChI

1S/C27H30N2O7S2.Na/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);/q;+1/p-1

SMILES string

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

assay

≥73% (HPLC)

form

powder

composition

Dye content, 75%

technique(s)

microbe id | staining: suitable

color

brown to very dark brown
 green to very dark green

solubility

methanol: 1 mg/mL

λmax

554 nm

ε (extinction coefficient)

≥85000 at 554-560 nm in 0.1 M NaOH in methanol at 0.005 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

Quality Level

100

Related Categories

Application

Sulforhodamine B has been used as a dye in the MCF-7 (human breast adenocarcinoma cell line) cell proliferation assay.

General description

Sulforhodamine B (SRB) is a bright-pink aminoxanthene dye. The sulforhodamine B (SRB) assay is extensively used for in vitro cytotoxicity screening. SRB binds to the protein constituents of the cells in a stoichiometric manner. Thus, the amount of dye extracted from stained cells is directly proportional to the cell mass. SRB can also be used for cell density determination.

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
0000421134
0000421134
0000345171
0000345171
MKCF8839

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Endocrine disrupting effects in vitro of conazole antifungals used as pesticides and pharmaceuticals
Kj?rstad MB
Reproductive Toxicology, 30, 573-582 (2010)
Sulforhodamine B colorimetric assay for cytotoxicity screening
Vichai V
Nature Protocols, 1, 1112?1116-1112?1116 (2006)
Christian A Ruge et al.
Colloids and surfaces. B, Biointerfaces, 139, 219-227 (2016-01-01)
The conversion of colloidal drug carriers/polymeric nanoparticles into dry microparticulate powders (e.g., by spray-drying) is a prominent approach to overcome the aerodynamic limitations of these formulations for delivery via inhalation. However, to what extent such nano-embedded microparticles disintegrate into individual/intact
Yuwei Chen et al.
Bioscience reports, 40(5) (2020-05-05)
The liver is a vital organ and the hepatic lobule serves as the most basic structural and functional unit which is mainly assembled with parenchymal cells including hepatocytes and biliary epithelial cells. The continuous tubular arrangement of biliary cells which
Anna Jaśkiewicz et al.
Journal of clinical medicine, 8(5) (2019-05-19)
The present study is centered on molecular mechanisms of the cytoprotective effect of geranylgeraniol (GGOH) in skeletal muscle harmed by statin-associated myopathy (SAM). GGOH via autophagy induction was purportedly assumed to prevent skeletal muscle viability impaired by statins, atorvastatin (ATR)
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