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O7505

Sigma-Aldrich

Orcein

certified by the Biological Stain Commission, powder

Synonym(s):

Natural Red 28

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About This Item

CAS Number:
1400-62-0
EC Number:
215-750-6
MDL number:
MFCD00062310
UNSPSC Code:
12171500
NACRES:
NA.47

product name

Orcein, synthetic, certified by the Biological Stain Commission

biological source

synthetic

grade

certified by the Biological Stain Commission

form

powder

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

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 Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Kamelija Zarkovic et al.
Redox biology, 4, 109-117 (2015-01-02)
Vascular aging is associated with structural and functional modifications of the arteries, and by an increase in arterial wall thickening in the intima and the media, mainly resulting from structural modifications of the extracellular matrix (ECM) components. Among the factors
C Clementi et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 71(5), 2057-2062 (2008-11-14)
In this paper, three Renaissance tapestries depicting scenes painted by Raffaello Sanzio, conserved at the Vatican Museum, were investigated using in-situ UV-Visible fluorimetric measurements. The results show that this technique is suitable for the detection of natural organic colorants used
[Orcein and elastic fibers].
Juan Antonio Barcat
Medicina, 63(5), 453-456 (2003-11-25)
A Fachinelli et al.
Hernia : the journal of hernias and abdominal wall surgery, 15(4), 409-415 (2011-03-15)
The aim of this study was to substantiate the hypothesis as to whether an altered amount of elastic fibers in the linea alba aponeurosis occurs or not in anterior abdominal wall hernias (epigastric, incisional and umbilical), comparing the findings with
Juan Du et al.
Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences, 38(3), 318-320 (2006-06-17)
To compare the advantages and disadvantages of three staining methods of HBV. Normal Liver tissue and HBV-infected, HCV-infected, or dually infected (HBV and HCV) liver tissues were selected for this study. Formalin-fixed, paraffin-embedded sections (4 microm) were prepared. Each of
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