About This Item
CAS Number:
1400-62-0
UNSPSC Code:
12171500
NACRES:
NA.47
General description
Orcein or CI Natural Red 28 is an elastic tissue stain. The fluorescence properties of Orcein show maximum emission peak at 587 nm (low concentration) and 620 nm (high concentration) upon suitable excitation and acidic pH.
Biological Source: Synthetic
Quality Segment: M-Clarity 100
Form: Powder or crystals
Carbon Content: 41.72%
Nitrogen Content: 2.23%
Color: Dark brown
Solubility: 1 M NaOH, 1 mg/mL, clear
Molar Absorptivity (εmax): ≥400 at 580 nm in 0.1 M NaOH
Applications: Diagnostic assay manufacturing, hematology, histology
Storage Temperature: Room temperature
Molecular Formula: C₂₈H₂₄N₂O₇