Rhodamine 101 inner salt

for fluorescence

Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
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PubChem Substance ID:

Quality Level


for fluorescence


methanol: soluble


λex 560 nm; λem 589 nm in methanol

SMILES string




InChI key


General description

Rhodamine 101 (Rh101) is a highly stable fluorophore in the rhodamine family.


Rhodamine 101 (Rh101, compound 1) has been used:
  • as a reference model for analysing extra fluorochromic properties of rhodamine derivatives
  • as a reference against thioflavin t (ThT) in the determination of ensemble photophysical properties
  • as reference compound for comparing the quantum yields of nanocrystals

Biochem/physiol Actions

Rhodamine 101 (Rh101) is useful as a reference material to measure the fluorescence quantum yield.


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Hazard Statements

Precautionary Statements

Target Organs

Respiratory system

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Hubert Piwoński et al.
Nature communications, 8, 15256-15256 (2017-05-17)
Applications of conjugated polymer nanoparticles (Pdots) for imaging and sensing depend on their size, fluorescence brightness and intraparticle energy transfer. The molecular design of conjugated polymers (CPs) has been the main focus of the development of Pdots. Here we demonstrate...
Rajendar K Mittapalli et al.
Cancer research, 77(2), 238-246 (2016-11-07)
Tumors residing in the central nervous system (CNS) compromise the blood-brain barrier (BBB) via increased vascular permeability, with the magnitude of changes dependent on the tumor type and location. Current studies determine penetrability of a cancer therapeutic by administering progressively...
Ryota Iwai et al.
Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology (2020-05-21)
Diarylethene derivatives having benzothiophene S,S-dioxide groups undergo turn-on mode fluorescence photoswitching. For the practical application to super-resolution fluorescence microscopy, photoswitchable fluorescent molecules are desired to be resistant against photodegradation. Here we synthesized turn-on mode fluorescent diarylethenes having electron-withdrawing (trifluoromethyl or...
Bifunctional fluorescent probes for detection of amyloid aggregates and reactive oxygen species
Needham LM, et al.
Royal Society open science, 5(2), 171399-171399 (2018)
Effect of zinc incorporation on the performance of red light emitting InP core nanocrystals
Xi L, et al.
Inorganic Chemistry, 55(17), 8381-8386 (2016)

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