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234141

Sigma-Aldrich

Rhodamine B base

Dye content 97 %

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Synonym(s):
Solvent Red 49
Empirical Formula (Hill Notation):
C28H30N2O3
CAS Number:
Molecular Weight:
442.55
Colour Index Number:
45170:1
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.47

form

solid

Quality Level

composition

Dye content, 97%

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

SMILES string

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

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

InChI key

CVAVMIODJQHEEH-UHFFFAOYSA-N

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1 of 4

This Item
R6626R412783689
vibrant-m

234141

Rhodamine B base

vibrant-m

R6626

Rhodamine B

vibrant-m

R4127

Rhodamine 6G

vibrant-m

83689

Rhodamine B

solubility

ethanol: 1 mg/mL

solubility

H2O: 1 mg/mL

solubility

H2O: 1 mg/mL, dark red

solubility

H2O: soluble, methanol: soluble

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

-

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

storage temp.

-

ε (extinction coefficient)

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

ε (extinction coefficient)

104500-115800 at 542-554 nm in methanol

ε (extinction coefficient)

-

ε (extinction coefficient)

-

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

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_germany

WGK 3

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Offspring from sequential matings between Bacillus thuringiensis-resistant and Bacillus thuringiensis-susceptible Heliothis virescens moths (Lepidoptera: Noctuidae).
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Journal of Economic Entomology, 103, 861-868 (2010)
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