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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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Estimated to ship on16 April 2025


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50 MG
CHF 202.00
100 MG
CHF 338.00
500 MG
CHF 415.00

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

CHF 202.00


Estimated to ship on16 April 2025


Request a Bulk Order

Product Name

Sulforhodamine 101, Dye content ~95 %

form

powder

Quality Level

composition

Dye content, ~95%

technique(s)

microbe id | staining: suitable

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.[1]

Application

Sulforhodamine 101 has been used:
  • to label astrocytes[2]
  • in quantitative polymerase chain reaction (PCR)[3]
  • to determine the degree of disintegration in tissue sample[4]

Biochem/physiol Actions

Sulforhodamine 101 can be specifically used as a marker of astroglia in the neocortex.[1] It is commonly used for brain imaging.[5] Studies suggest that sulforhodamine 101 may be used as an epileptogenic agent.[6]

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

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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
David S Greenberg et al.
Nature neuroscience, 11(7), 749-751 (2008-06-17)
It is unclear how the complex spatiotemporal organization of ongoing cortical neuronal activity recorded in anesthetized animals relates to the awake animal. We therefore used two-photon population calcium imaging in awake and subsequently anesthetized rats to follow action potential firing
Danielle Tokarz et al.
PloS one, 12(10), e0186846-e0186846 (2017-10-25)
Osteocytes are the most abundant cell in the bone, and have multiple functions including mechanosensing and regulation of bone remodeling activities. Since osteocytes are embedded in the bone matrix, their inaccessibility makes in vivo studies problematic. Therefore, a non-invasive technique
In vivo imaging of oligodendrocytes with sulforhodamine 101
Hill RA and Grutzendler J
Nature Methods, 11(11), 1081-1081 (2014)

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