Rhodamine B

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Catalog Number
ACM81889-1
Product Name
Rhodamine B
Structure
Structure
CAS
81-88-9
Category
Basic Dyes
Description
Alfa Chemistry offers Rhodamine B products for various research purposes. Please contact us by email if you do not find the specification you are looking for on this page.
Synonyms
9-(2-Carboxyphenyl)-3,6-bis(diethylamino)xanthylium chloride
IUPAC Name
[9-(2-Carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethylazanium;chloride
Molecular Weight
479.01
Molecular Formula
C28H31ClN2O3
Canonical SMILES
CCN(CC)C1=CC2=C(C=C1)C(=C3C=CC(=[N+](CC)CC)C=C3O2)C4=CC=CC=C4C(=O)O.[Cl-]
InChI
InChI=1S/C28H30N2O3.ClH/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;1H
InChI Key
PYWVYCXTNDRMGF-UHFFFAOYSA-N
Melting Point
210-211 °C
Flash Point
12ºC
Density
0.79 g/ml
Solubility
Completely soluble in water very soluble in Alcohol Soluble in Benzene Slightly sol. in Acetone
Appearance
Powder
Application
Applications of xanthene dyes involve optical materials and organic dyes for medical diagnosis research. Several characteristic features of xanthene dyes are large absorption and luminescence, excellent light resistance, low toxicity in-vivo, and relatively high solubility in water.
Storage
-20 °C in the dark
Absorbance
(E1%1cm) min. 2000(H₂O, 552.0 to 556.0 nm)
Absorption Wavelength
(max.) 554(H₂O) nm
Color/Form
GREEN CRYSTALS OR REDDISH-VIOLET POWDER; WATER SOLN WITH BLUISH-RED COLOR, DIL SOLN STRONGLY FLUORESCENT;LEAFLETS FROM DILUTE HYDROCHLORIC ACID
Complexity
811
Covalently-Bonded Unit Count
2
EC Number
201-383-9
Emission Maximum
568 nm
Exact Mass
478.202321g/mol
Excitation Maximum
546 nm
Features And Benefits
Both cationic and anionic xanthene dyes are known to be efficient fluorescent dyes. Functional groups on the xanthene moiety control their fluorescent colors.
Formal Charge
0
Hazard Codes
Xn
Hazard Statements
H334
H-Bond Acceptor
5
H-Bond Donor
1
Heavy Atom Count
34
HS Code
32041300
LogP
2.56500
MDL Number
MFCD00011931
Monoisotopic Mass
478.202321g/mol
NSC Number
41837;10475
Other Experimental
MAX ABSORPTION (ALCOHOL): 546 (LOG E= 4.86) /BASIC ANHYDROUS FORM/;SOL IN WATER, ALCOHOL & ETHER, BENZENE /BASIC ANHYDROUS FORM/;INSOL IN ORG SOLVENTS /BASIC ANHYDROUS FORM/;GREEN LEAFLETS FROM WATER WITH 4 MOL OF WATER OF CRYSTALLIZATION, COLORLESS PRISMS FROM ALCOHOL, XYLENE /BASIC ANHYDROUS FORM/;165 °C (anhydrous);SOL IN ... HOT XYLENE /BASIC ANHYDROUS FORM/
pH
3-4
Physical State
(20 deg.C) Solid
Precautionary Statements
P260 P262
PSA
56.69
RIDADR
UN 1219 3/PG 2
Rotatable Bond Count
7
Signal Word
Danger
Stability
Stable. Incompatible with strong oxidizing agents.
Storage Conditions
Store at room temperature and dry
UNII
K7G5SCF8IL
WGK Germany
2
Please kindly note that our products are for research use only.

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