1% Methylene Blue, 500mL - Aqueous - The Curated Chemical Collection Item Type_Net with a paired intact hemisphere

with a paired intact hemisphere for external comparison

sized for fine-pitch breadboard work where 4mm hardware is too large for the apparatus

Thick-wall cylindrical aluminum water bath with 150mL capacity ships with concentric rings and two handles for adapting openings to various flask sizes

Fifty-nine-atom compact molecular model set at 15-20mm scale with assorted bond links

1% Methylene Blue, 500mL - Aqueous - The Curated Chemical Collection Item Type_Net with a paired intact hemisphereMethylene blue staining solution used in microbiology and biology labs for bacterial cell observation and basic cytoplasmic structure visualization.