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Merck

P4030

Phloxine B

Dye content, ≥80%, certified by the Biological Stain Commission, powder

Synonym(s):

2′,4′,5′,7′-Tetrabromo-4,5,6,7-tetrachlorofluorescein disodium salt, Acid Red 92, Cyanosine, D&C;Red No. 28, Eosin 10B

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About This Item

Empirical Formula (Hill Notation):
C20H2Br4Cl4Na2O5
CAS Number:
18472-87-2
Molecular Weight:
829.63
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
24898486
EC Number:
242-355-6
MDL number:
MFCD00070627
Colour Index Number:
45410
Beilstein/REAXYS Number:
3887100

Key Documents

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Product Name

Phloxine B, Dye content ≥80 %, certified by the BSC

InChI key

OOYIOIOOWUGAHD-UHFFFAOYSA-L

InChI

1S/C20H4Br4Cl4O5.2Na/c21-5-1-3-17(9(23)15(5)29)32-18-4(2-6(22)16(30)10(18)24)20(3)8-7(19(31)33-20)11(25)13(27)14(28)12(8)26;;/h1-2,29-30H;;/q;2*+1/p-2

SMILES string

[Na+].[Na+].[O-]c1c(Br)cc2c(Oc3c(Br)c([O-])c(Br)cc3C24OC(=O)c5c(Cl)c(Cl)c(Cl)c(Cl)c45)c1Br

agency

certified by the BSC

form

powder

composition

Dye content, ≥80%

technique(s)

microbe id | staining: suitable

color

dark red

solubility

H2O: 1 mg/mL

εmax

1150-1300 at 546-550 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

Quality Level

200

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Related Categories

Application

Phloxine B has been used as a component of yeast extract peptone dextrose (YEPD) to grow Schizosaccharomyces pombe.
Certified for use in Mallory′s phloxine-methylene blue stain; Kreyberg′s method for keratin and mucus.

General description

Phloxine B is part of the xanthylium class of dyes. The stain is mostly used to determine cell ploidy and temperature sensitivity of Schizosaccharomyces pombe. Solid media is colored a vivid pink.

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
SHBS0944
SHBQ9129
SHBQ0151
SHBM7086
MKCJ0760

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A recent longitudinal study described an inducible rodent model for age-related cognitive deterioration. This model was produced by chronically feeding rats aluminum, from age 12 months onwards, in measured amounts equivalent to total aluminum levels ingested by Americans from their
Robert R Heath et al.
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Development of attract-and-kill bait stations for pest fruit flies has been limited by the water solubility of sugar needed as a feeding stimulant and by the volatility of chemical attractants. A wax-based matrix was developed that provides the longevity needed
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