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Merck
CN

85663

Stains-All

≥90% (TLC)

Synonym(s):

1-Ethyl-2-[3-(1-ethylnaphtho[1,2-d]thiazolin-2-ylidene)-2-methylpropenyl]naphtho[1,2-d]thiazolium bromide, 3,3′-Diethyl-9-methyl-4,5,4′,5′-dibenzothiacarbocyanine

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About This Item

Empirical Formula (Hill Notation):
C30H27BrN2S2
CAS Number:
7423-31-6
Molecular Weight:
559.58
EC Number:
231-047-7
UNSPSC Code:
12171500
MDL number:
MFCD00078788
Beilstein/REAXYS Number:
3865213

Key Documents

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InChI

1S/C30H27N2S2.BrH/c1-4-31-27(33-25-16-14-21-10-6-8-12-23(21)29(25)31)18-20(3)19-28-32(5-2)30-24-13-9-7-11-22(24)15-17-26(30)34-28;/h6-19H,4-5H2,1-3H3;1H/q+1;/p-1

InChI key

MPBRYMWMMKKRGC-UHFFFAOYSA-M

SMILES string

[Br-].CCN1C(/Sc2ccc3ccccc3c12)=C\C(C)=C\c4sc5ccc6ccccc6c5[n+]4CC

assay

≥90% (TLC)

cation traces

Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

Other Notes

Versatile stain for staining RNA (bluish-purple), DNA (blue), proteins (red) and acid polysaccharides

Storage Class

13 - Non 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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A colorimetric method for the determination of mucopolysaccharides and other acidic polymers.
R D Edstrom
Analytical biochemistry, 29(3), 421-432 (1969-06-01)
R.E. Kay et al.
The Journal of Physical Chemistry, 68, 1896-1896 (1964)
Electrophoretic characterization of bacterial polyribosomes in agarose-acrylamide composite gels.
A E Dahlberg et al.
Journal of molecular biology, 41(1), 139-147 (1969-04-14)
Electrophoretic determinations of hyaluronate produced by cells in culture.
J P Bader et al.
Biochimica et biophysica acta, 264(1), 73-84 (1972-03-30)
H A Goldberg et al.
Analytical biochemistry, 251(2), 227-233 (1997-09-23)
A number of acidic proteins, such as those found in bone and dentin, are poorly resolved on acrylamide gels using Coomassie blue or silver nitrate staining. The cationic dye Stains-all allows visualization and identification of these proteins due to their
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