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Merck
CN

234141

Rhodamine B base

Dye content 97 %

Synonym(s):

Solvent Red 49

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About This Item

Empirical Formula (Hill Notation):
C28H30N2O3
CAS Number:
509-34-2
Molecular Weight:
442.55
PubChem Substance ID:
24854024
UNSPSC Code:
12171500
Colour Index Number:
45170:1
NACRES:
NA.47
EC Number:
208-096-8
MDL number:
MFCD00066967

Key Documents

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InChI key

CVAVMIODJQHEEH-UHFFFAOYSA-N

InChI

1S/C28H30N2O3/c1-5-29(6-2)19-13-15-23-25(17-19)33-26-18-20(30(7-3)8-4)14-16-24(26)27(23)21-11-9-10-12-22(21)28(31)32/h9-18H,5-8H2,1-4H3

SMILES string

CCN(CC)c1ccc2c(OC3=CC(\C=CC3=C2c4ccccc4C([O-])=O)=[N+](\CC)CC)c1

form

solid

composition

Dye content, 97%

technique(s)

microbe id | staining: suitable

solubility

ethanol: 1 mg/mL

λmax

544 nm

ε (extinction coefficient)

≥103000 at 542-546 nm in methanol at 0.0025 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

Quality Level

100

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General description

Rhodamine B base is a colorless 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.

Biochem/physiol Actions

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.

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000511218
0000511218
SHBS5108
0000308963
0000308963

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Offspring from sequential matings between Bacillus thuringiensis-resistant and Bacillus thuringiensis-susceptible Heliothis virescens moths (Lepidoptera: Noctuidae).
Blanco CA
Journal of Economic Entomology, 103, 861-868 (2010)
F. Kajzar, Vladimir M. Agranovich
Multiphoton and Light Driven Multielectron Processes in Organics: New Phenomena, Materials and Applications (1999)

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