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328960

Sigma-Aldrich

Rose Bengal lactone

95%

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Empirical Formula (Hill Notation):
C20H4Cl4I4O5
CAS Number:
Molecular Weight:
973.67
EC Number:
MDL number:
PubChem Substance ID:

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

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1 of 4

This Item
114359330000R6626
Rose Bengal lactone 95%

Sigma-Aldrich

328960

Rose Bengal lactone

Bromocresol Green ACS reagent, Dye content 95 %

Sigma-Aldrich

114359

Bromocresol Green

Rose bengal Dye content 95 %

Sigma-Aldrich

330000

Rose bengal

Rhodamine B ≥95% (HPLC)

Sigma-Aldrich

R6626

Rhodamine B

form

powder

form

powder

form

solid

form

powder

mp

280 °C (dec.) (lit.)

mp

225 °C (dec.) (lit.)

mp

-

mp

210-211 (dec.) (lit.)

λmax

557 nm

λmax

423 nm

λmax

549 nm

λmax

-

ε (extinction coefficient)

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

ε (extinction coefficient)

-

ε (extinction coefficient)

-

ε (extinction coefficient)

104500-115800 at 542-554 nm in methanol

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

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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