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Merck
CN

858331

Ponceau BS

Dye content 50 %

Synonym(s):

Acid Red 66, Biebrich scarlet WS, Biebrich scarlet sodium salt

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About This Item

Empirical Formula (Hill Notation):
C22H14N4Na2O7S2
CAS Number:
4196-99-0
Molecular Weight:
556.48
EC Number:
224-084-5
PubChem Substance ID:
329769417
UNSPSC Code:
12171500
Beilstein/REAXYS Number:
3883900
Colour Index Number:
26905
MDL number:
MFCD00003891

Key Documents

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composition

Dye content, 50%

λmax

505 nm

SMILES string

[Na+].[Na+].Oc1ccc2ccccc2c1\N=N\c3ccc(cc3S([O-])(=O)=O)\N=N\c4ccc(cc4)S([O-])(=O)=O

InChI

1S/C22H16N4O7S2.2Na/c27-20-12-5-14-3-1-2-4-18(14)22(20)26-25-19-11-8-16(13-21(19)35(31,32)33)24-23-15-6-9-17(10-7-15)34(28,29)30;;/h1-13,27H,(H,28,29,30)(H,31,32,33);;/q;2*+1/p-2/b24-23+,26-25+;;

InChI key

VVAVKBBTPWYADW-RVTJCSDESA-L

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
16925MF
06325MO
05116HR
10406TQ
10312LN

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Rob R Eversole et al.
The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society, 51(2), 253-257 (2003-01-21)
Here we describe a simple histochemical technique that provides an improved approach to identifying eosinophil components in tissues through the formation of photoreactive complexes that produce stable fluorescent emissions. This method worked readily with histological tissue sections 6-60 microm thick
H R Allcock et al.
Biomaterials, 17(23), 2295-2302 (1996-12-01)
A new class of pH-sensitive hydrogels has been designed and synthesized. These are novel polyphosphazenes that bear various ratios of sodium oxybenzoate and methoxyethoxyethoxy side groups. These water-soluble macromolecules were cross-linked by 60Co gamma irradiation and the products were allowed
Hong-Wen Gao et al.
Amino acids, 36(2), 251-260 (2008-03-28)
We studied the non-specific interactions of two azo compounds: biebrich scarlet (BS) and naphthochrome green (NG), with four model proteins: bovine serum albumin, ovalbumin, poly-L-lysine and hemoglobin by UV-VIS spectrometry, fluorophotometry and circular dichroism melting technique. The optimal acidities of
J A Kiernan et al.
Biotechnic & histochemistry : official publication of the Biological Stain Commission, 73(5), 244-254 (1998-11-26)
Anionic dyes, notably acid fuchsine, strongly stain the nuclei and cytoplasm of neurons severely damaged by injury or disease. We provide detailed instructions for staining nervous tissue with toluidine blue and acid fuchsine for optimal demonstration of injured neurons. Degeneration
V H Tomasi et al.
Biotechnic & histochemistry : official publication of the Biological Stain Commission, 83(3-4), 147-151 (2008-09-20)
The cheek pouch is an anatomical peculiarity of hamsters, widely used as an experimental model for oral cancer, and characterization of its normal cell populations and the changes they undergo in pathological conditions is of great interest. Our studies of

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