Rhodamine B base 97%, Sigma-Aldrich®

Leverantör: SIGMA-ALDRICH MICROSCOPY
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Synonyms: Xanthylium, 9-(2-carboxyphenyl)-3,6-bis(diethylamino)-, inner salt, 9-(2-Carboxylatophenyl)-3,6-bis(diethylamino)xanthylium, Ethaminium, N-(9-(2-carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene)-N-ethyl)-, hydroxide, inner salt

M-Clarity™ quality level = MQ100

234141-10G 234141-25G
234141-10GEA 577 SEK
234141-10G 234141-25G
Rhodamine B base 97%, Sigma-Aldrich®
Rhodamine B base

Rhodamine B base, Dye content 97% (Solvent Red 49).


Rhodamine B base is a colourless dye with undetectable fluorescence feature. In acidic condition, rhodamine B base gets transformed into a colored rhodamine dye that acts as a stable and efficient laser dye. Rhodamine B base has been used as a marker in the experiment to determine the mating of B. thuringiensis-resistant females with B. thuringiensis-resistant and B. thuringiensis-susceptible males in reciprocal orders.

Formel: C₂₈H₃₀N₂O₃
MW: 442,559 g/mol
Storage Temperature: Room Temperature
MDL Number: MFCD00066967
CAS nummer: 509-34-2
EINECS: 208-096-8

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Specifikation testresultat

Appearance (Form) Powder or Chunks
Infrared spectrum Conforms to Structure
Wavelength, C=0.0025 g/L in Methanol 542 - 546 nm
Extinction Coefficient ≥103000
Carbon 73.3 - 78.6%
Nitrogen 6.1 - 6.6%
Purity (HPLC) ≥96.5%
Solubility (Turbidity), c = 1 mg/ml; Ethanol Clear to Slightly Hazy
Solubility (Colour) Orange and Red to Dark Red and Orange-Red and Red-Orange

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