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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

Quality Level

200

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 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

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Certificates of Analysis (COA)

Lot/Batch Number
SHBS3498
SHBR3683
SHBQ8527
SHBP6893
SHBN9685

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Sharma AK and Sharma A
Chromosome Techniques: Theory and Practice (2014)
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
K Demirtaş et al.
Biotechnic & histochemistry : official publication of the Biological Stain Commission, 82(6), 319-323 (2007-12-22)
It is difficult to distinguish muscle, vessel, nerve, fascia, tendon and many other structures in fetal sections. The aim of the study reported here was to research the practicability of orcein-picroindigocarmine staining for distinguishing anatomic structures in histological sections containing
V B Bardella et al.
Genetics and molecular research : GMR, 7(2), 326-335 (2008-06-14)
Triatomines are of great concern in public health because they are vectors of Chagas' disease. This study presents an analysis of the species Triatoma melanosoma. The cytogenetic characteristics of triatomines include holocentric chromosomes, post-reductional meiosis in the sex chromosomes and
Sergio Pimpinelli et al.
Cold Spring Harbor protocols, 2010(3), pdb-pdb (2010-03-03)
In this protocol, larval brains from Drosophila are incubated in vitro with colchicine, treated with hypotonic solution, fixed, and squashed in aceto-orcein. This procedure provides a large number of well-spread metaphase figures (200-400 per brain) that can be analyzed for
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