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S7635

Sigma-Aldrich

Sulforhodamine 101

Dye content ~95 %, Powder

Synonym(s):

SR101; 2-(3-oxa-23-aza-9-azoniaheptacyclo[17.7.1.15,9.02,17.04,15.023,27.013,28]octacosa-1(27),2(17),4,9(28),13,15,18-heptaen-16-yl)-5-sulfobenzenesulfonate

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About This Item

Empirical Formula (Hill Notation):
C31H30N2O7S2
CAS Number:
Molecular Weight:
606.71
Beilstein:
3582548
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47

product name

Sulforhodamine 101, Dye content ~95 %

form

powder

composition

Dye content, ~95%

color

black
dark green to brown

solubility

methanol: 1 mg/mL

ε (extinction coefficient)

≥105000 at 573-579 nm in ethanol

fluorescence

λex 586 nm; λem 605 nm in H2O

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

OS(=O)(=O)c1ccc(C2=C3C=C4CCC[N+]5=C4C(CCC5)=C3Oc6c7CCCN8CCCc(cc26)c78)c(c1)S([O-])(=O)=O

InChI

1S/C31H30N2O7S2/c34-41(35,36)20-9-10-21(26(17-20)42(37,38)39)27-24-15-18-5-1-11-32-13-3-7-22(28(18)32)30(24)40-31-23-8-4-14-33-12-2-6-19(29(23)33)16-25(27)31/h9-10,15-17H,1-8,11-14H2,(H-,34,35,36,37,38,39)

InChI key

COIVODZMVVUETJ-UHFFFAOYSA-N

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General description

Sulforhodamine 101 is a red fluorescent dye. It is water-soluble, amphoteric rhodamine.

Application

Sulforhodamine 101 has been used:
  • to label astrocytes
  • in quantitative polymerase chain reaction (PCR)
  • to determine the degree of disintegration in tissue sample

Biochem/physiol Actions

Sulforhodamine 101 can be specifically used as a marker of astroglia in the neocortex. It is commonly used for brain imaging. Studies suggest that sulforhodamine 101 may be used as an epileptogenic agent.

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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Stimulus-Evoked Calcium Transients in Somatosensory Cortex Are Temporarily Inhibited by a Nearby Microhemorrhage
Flor A
PLoS ONE (2013)
Single-cell genetic analysis of ductal carcinoma in situ and invasive breast cancer reveals enormous tumor heterogeneity yet conserved genomic imbalances and gain of MYC during progression
Heselmeyer HK, et al.
The American Journal of Pathology, 181(5), 1807-1822 (2012)
Sulforhodamine 101 as a specific marker of astroglia in the neocortex in vivo
Nimmerjahn A, et al.
Nature Methods, 1(1), 31-31 (2004)
Florence Appaix et al.
PloS one, 7(4), e35169-e35169 (2012-04-18)
Fluorescent staining of astrocytes without damaging or interfering with normal brain functions is essential for intravital microscopy studies. Current methods involved either transgenic mice or local intracerebral injection of sulforhodamine 101. Transgenic rat models rarely exist, and in mice, a
In vivo imaging of oligodendrocytes with sulforhodamine 101
Hill RA and Grutzendler J
Nature Methods, 11(11), 1081-1081 (2014)

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