ORCEIN
Synonym(s):Natural Red 28
- CAS NO.:1400-62-0
- Empirical Formula: C28H24N2O7
- Molecular Weight: 500.49936
- MDL number: MFCD00062310
- EINECS: 215-750-6
- Update Date: 2023-04-23 13:52:06
What is ORCEIN?
Chemical properties
dark brown crystals or powder
The Uses of ORCEIN
Orcein (cas# 1400-62-0) is an organic dye and histochemical stain. Orcein has also been used as a stain for extracellular matrices. Dyes and metabolites.
The Uses of ORCEIN
Biological stain.
What are the applications of Application
Orcein (Synthetic) is a useful microscopy dye for flagella stains
Definition
ChEBI: A member of the class of benzofurans that is dibenzo[b,d]furan-3,7-dione bearing two methyl substituents at positions 1 and 9 as well as two 2,4-dihydroxy-6-methylanilino substituents at positions 2 and 8.
General Description
Orcein is a weakly acidic orange-red fluorochrome and is mainly required for the staining of elastic tissue. It is not specific for chromatin staining, however, in acidic solutions it works as a basic dye and stains basophilic chromosomes purple red.
Properties of ORCEIN
Boiling point: | 591.36°C (rough estimate) |
Density | 1.3224 (rough estimate) |
refractive index | 1.5800 (estimate) |
storage temp. | room temp |
solubility | Insoluble in water, benzene, chloroform,
ether; soluble in ethanol, acetone, acetic acid; soluble in
aqueous alkali |
pka | 4.0, 6.9, 13.4(at 25℃) |
form | Powder |
color | Dark brown to brown-black |
Water Solubility | Soluble in acetone, alcohol, acetic acid (red color), and dilute aqueous alkali (blue-violet color). Insoluble in water. |
λmax | 575 nm |
Merck | 14,6863 |
Stability: | Stable. |
Biological Applications | Diagnosis of liver biopsy; detecting Candida,hepatitis B surface antigen in fixed tissues,histamines,HBsAg in liver cell,microorganisms |
EPA Substance Registry System | Orcein (1400-62-0) |
Safety information for ORCEIN
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P280:Wear protective gloves/protective clothing/eye protection/face protection. P330:Rinse mouth. |
Computed Descriptors for ORCEIN
Abamectin manufacturer
Pallav Chemicals And Solvents Pvt Ltd
1Y
Phone:+91-9136093115
Whatsapp: +91- 9136093115
product: Orcein For Microscopy 1400-62-0 99%
ARRAKIS INDUSTRIES LLP
1Y
Phone:+91-7499586750
Whatsapp: +91- 7499586750
product: ORCEIN SYNTHETIC 1400-62-0 99%
New Products
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TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)DYSPROSIUM(III)
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