1.04170

Erythrosine B (C.I. 45430)

• Formule empirique (notation de Hill): C₂₀H₆I₄Na₂O₅
• Numéro CAS: 16423-68-0
• Poids moléculaire : 879.86
• Numéro MDL: MFCD00144257
• Code UNSPSC : 41116130
• Nomenclature NACRES : NA.21

Propriétés

• Forme: solid
• Niveau de qualité: 200
• Puissance: 1840 mg/kg LD₅₀, oral (Rat)
• Composition: Dye, ≥80% gravimetric
• pH: 6-7 (20 °C, 10 g/L in H₂O)
• Solubilité: 100 g/L
• Masse volumique apparente: 470 kg/m³
• Application(s): diagnostic assay manufacturing; hematology; histology
• Température de stockage: 2-30°C
• InChI: 1S/C20H8I4O5.2Na/c21-11-5-9-13(7-3-1-2-4-8(7)20(27)28)10-6-12(22)17(26)15(24)19(10)29-18(9)14(23)16(11)25;;/h1-6,25H,(H,27,28);;/q;2*+1/p-2
• Clé InChI: IINNWAYUJNWZRM-UHFFFAOYSA-L

Description

Description générale

Erythrosin B (C.I. 45430)for microscopy Certistain^®, is a dry dye for microscopy that is often used as a counterstain, vizualising proteins, connective tissues, fibers and keratin in sample material of human origin. Depending on user requirements and personal preferences, it can be used for the preparation of the commonly used aqueous or alcoholic Erythrosin B staining solutions. As the dye belongs to the portfolio of Certistain^® dyes, it is chemically analyzed according to strict specifications before release and a high staining quality, with reliable staining results is guaranteed.

Application

for microscopy Certistain^®

Remarque sur l'analyse

Dye content (gravimetrically): ≥ 80 %
Identity
- sodium:
passes test
- UV/VIS-Spectrum: passes test
Absorption maximum λ max (water): 524 - 527 nm
Spec. Absorptivity A 1%/1cm (λ_max; 0.005 g/l; water): 930 - 1170
TLC-Test: passes test
Loss on drying (110 °C): ≤ 10 %
Suitability for microscopy: passes test

Informations légales

CERTISTAIN is a registered trademark of Merck KGaA, Darmstadt, Germany

Informations sur la sécurité

• Pictogrammes: GHS07,GHS09
• Mention d'avertissement: Warning
• Mentions de danger: H302 - H411
• Conseils de prudence: P264 - P270 - P273 - P301 + P312 - P391 - P501
• Classification des risques: Acute Tox. 4 Oral - Aquatic Chronic 2
• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): 359.6 °F - closed cup
• Point d'éclair (°C): 182 °C - closed cup