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328960

Sigma-Aldrich

Rose Bengal lactone

95%

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About This Item

Empirical Formula (Hill Notation):
C20H4Cl4I4O5
CAS Number:
4159-77-7
Molecular Weight:
973.67
EC Number:
223-993-4
MDL number:
MFCD00013321
UNSPSC Code:
12171500
PubChem Substance ID:
24859760
NACRES:
NA.47

Quality Level

100

Assay

95%

form

powder

mp

280 °C (dec.) (lit.)

λmax

557 nm

ε (extinction coefficient)

≥10000 at 317-323 nm
≥30000 at 516-522 nm
≥95000 at 554-560 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Oc1c(I)cc2c(Oc3c(I)c(O)c(I)cc3C24OC(=O)c5c(Cl)c(Cl)c(Cl)c(Cl)c45)c1I

InChI

1S/C20H4Cl4I4O5/c21-9-7-8(10(22)12(24)11(9)23)20(33-19(7)31)3-1-5(25)15(29)13(27)17(3)32-18-4(20)2-6(26)16(30)14(18)28/h1-2,29-30H

InChI key

IICCLYANAQEHCI-UHFFFAOYSA-N

Related Categories

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Iu D Shenin et al.
Antibiotiki i khimioterapiia = Antibiotics and chemoterapy [sic], 41(2), 16-21 (1996-02-01)
The study was aimed at the development of a laboratory procedure for isomerization of polyene macrolides in the presence of sensitizers. The reaction was performed with exposure of levorin solutions to the xenon lamp irradiation in the presence of rose
D W Marshall et al.
Appetite, 39(3), 193-206 (2002-12-24)
Most people get married or spend time living with a partner at some stage in their lives. But what effect does this change have, if any, on their eating habits? The transition from bachelor or spinster to young couple represents
Bahram Hemmateenejad et al.
Analytical and bioanalytical chemistry, 394(7), 1965-1975 (2009-06-23)
This article describes the use of the net analyte signal (NAS) concept and rank annihilation factor analysis (RAFA) for building two different multivariate standard addition models called "SANAS" and "SARAF." In the former, by the definition of a new subspace
J Kanno et al.
Toxicology, 99(1-2), 107-113 (1995-05-05)
The effect of 3,4,5,6-tetrachloro-2',4',5',7'-tetraiodo-fluorescein sodium salt (Rose Bengal B or FD&C Red No. 105, molecular weight 1017.6) on the thyroid of rats treated with N-bis(2-hydroxypropyl)-nitrosamine (DHPN) and iodine-deficient (I-def) diet is studied. Six-week-old male F344 rats were divided into seven
A Ito et al.
Journal of the National Cancer Institute, 77(1), 277-281 (1986-07-01)
The tumorigenicity of 9-3',4',5',6'-tetrachloro-o-carboxy phenyl-6-hydroxy-2,4,5,7-tetraiodo-3-isoxanthone sodium (CAS: 632-68-8) [also called Food Red 105 (FR 105) or Rose Bengal B], which is widely used for food or cosmetic coloring in Japan, was examined in (C57BL/6N X C3H/N)F1 mice. Animals were divided
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