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Sigma-Aldrich

Darrow Red

certified by the Biological Stain Commission, Dye content ≥65 %

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About This Item

Empirical Formula (Hill Notation):
C18H13N3O2
CAS Number:
15391-59-0
Molecular Weight:
303.31
MDL number:
MFCD00012672
UNSPSC Code:
12171500
PubChem Substance ID:
24852713
NACRES:
NA.47

grade

certified by the Biological Stain Commission

form

powder

composition

Dye content, ≥65%

λmax

502 nm

ε (extinction coefficient)

13100 at 255 nm in 50% ethanol
9300 at 498 nm in 50% ethanol

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Cl.CC(=O)Nc1ccc2N=C3C(Oc2c1)=CC(=N)c4ccccc34

InChI

1S/C18H13N3O2.ClH/c1-10(22)20-11-6-7-15-16(8-11)23-17-9-14(19)12-4-2-3-5-13(12)18(17)21-15;/h2-9,19H,1H3,(H,20,22);1H

InChI key

CJHKAKZHZRBAGI-UHFFFAOYSA-N

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Suitability

Certified for the staining of neuron cell bodies in paraffin or frozen sections of formalin fixed brain or spinal cord.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
01412CC
06808MZ

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Kelly Del Tredici et al.
Journal of neuropathology and experimental neurology, 79(4), 378-392 (2020-02-06)
Although Gaucher disease can be accompanied by Lewy pathology (LP) and extrapyramidal symptoms, it is unknown if LP exists in Fabry disease (FD), another progressive multisystem lysosomal storage disorder. We aimed to elucidate the distribution patterns of FD-related inclusions and
Alexis Fenyi et al.
Cells, 10(1) (2021-01-16)
We investigated α-synuclein's (αSyn) seeding activity in tissue from the brain and enteric nervous system. Specifically, we assessed the seeding propensity of pathogenic αSyn in formalin-fixed tissue from the gastric cardia and five brain regions of 29 individuals (12 Parkinson's
Analysis and testing of biological stains--the Biological Stain Commission Procedures.
D P Penney et al.
Biotechnic & histochemistry : official publication of the Biological Stain Commission, 77(5-6), 237-275 (2003-02-05)

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