Quaternary ammonium salts
Apexbio Technology LLC Wright Staining Solution 500ml
Wright Staining Solution composed primarily of eosin and methylene blue is frequently utilized in microscopic examination for differentiation and identification of cell types particularly in hematological analysis Its staining mechanism relies upon the differential affinity of cellular components for acidic and basic dyes eosin an acidic dye stains cytoplasmic granules and erythrocytes pink or orange-red whereas methylene blue a basic dye binds nucleic acids or acidic cellular structures to yield shades of blue or violet In practice mature erythrocytes and eosinophils stain distinctly pink lymphocytes monocytes and basophils appear dark bluish-purple and neutrophils exhibit a pale purple hue due to combined dye affinity Typical usage involves staining thin blood smears or bone marrow aspirates at undiluted formulation to facilitate morphological assessment and differentiation of cell populations
Medchemexpress LLC Choline (iodide) | 17773-10-3 | MFCD00011900 | 99.9% | 231.08 g/mol | C5H14INO | 5 G
Choline iodide is a water-soluble quaternary ammonium salt (IUPAC: 2-hydroxy-N,N,N-trimethylethan-1-aminium iodide) used as a source of choline groups in organic synthesis, biochemical assays, and microbiology. It dissolves readily in aqueous media and is supplied with documentation for research use.
- High purity (99.88%).
- Water-soluble for easy dissolution in aqueous media.
- Suitable as a choline source in synthesis and assays.
- Available in small pack sizes for lab-scale work.
- Datasheet and safety data sheet available for handling guidance.
Medchemexpress LLC HY-101036 100mg Medchemexpress, Choline (bitartrate) CAS:87-67-2 Purity:>98%
Medchemexpress, HY-101036 100mg Choline (bitartrate) CAS:87-67-2 Choline (bitartrate) is an essential nutrient, often associated with the B vitamins but not yet officially defined as a B vitamin. Choline (bitartrate) plays an important role in synthesis of the neurotransmitter acetylcholine. Purity:>98% Medchemexpress has over 10000 novel life-science reagents, reference compounds, APIs and natural compounds for laboratory and scientific use. Other quantity can also be offered.
