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Merck

O7505

Sigma-Aldrich

Orcein

certified by the Biological Stain Commission, powder

Sinónimos:

Natural Red 28

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About This Item

Número de CAS:
EC Number:
MDL number:
UNSPSC Code:
12171500
NACRES:
NA.47

product name

Orcein, synthetic, certified by the Biological Stain Commission

biological source

synthetic

Quality Level

grade

certified by the Biological Stain Commission

form

powder

technique(s)

microbe id | staining: suitable

solubility

1 M NaOH: 1 mg/mL

εmax

≥250% at 574-582 nm in NaOH at 0.01 M

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

N(c5c(cc(cc5C)O)O)C1=C(c2[c]([o][c]3c2C(=C(C(=O)C=3)Nc4c(cc(cc4C)O)O)C)=CC1=O)C

InChI

1S/C28H24N2O7/c1-11-5-15(31)7-17(33)25(11)29-27-13(3)23-21(9-19(27)35)37-22-10-20(36)28(14(4)24(22)23)30-26-12(2)6-16(32)8-18(26)34/h5-10,29-34H,1-4H3

InChI key

VPEASJIRGSVXBF-UHFFFAOYSA-N

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Suitability

Certified for use in Darrow′s elastic fiber stain; Orcein method for hepatitis B surface antigen.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


Certificados de análisis (COA)

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The Korean journal of parasitology, 45(1), 1-9 (2007-03-22)
The endosymbionts of 4 strains of Acanthamoeba (KA/E9, KA/E21, KA/E22, and KA/E23) isolated from the infected corneas of Korean patients were characterized via orcein stain, transmission electron microscopic examination, and 16S rDNA sequence analysis. Double membrane-bound, rod-shaped endosymbionts were distributed
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Journal of clinical pathology, 63(7), 575-578 (2010-05-27)
To assess venous invasion (VI) and its relation to distant metastases in colorectal cancer (CRC). Primary untreated CRC cases were assessed for VI. All tumour blocks were stained with H&E and orcein. The presence of VI and nodal status were

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