Diphenhydramine Powder is a first-generation antihistamine with established pharmaceutical applications. It is widely studied in pharmaceutical science, analytical chemistry, toxicology, and clinical research because of its antihistaminic and central nervous system effects.
Tetracaine Hydrochloride CAS 136-47-0
Chemical Name: 2-(Dimethylamino)ethyl 4-(butylamino)benzoate monohydrochloride
Synonyms: Amethocaine Hydrochloride
CAS Number: 136-47-0
Molecular Formula: C₁₅H₂₄N₂O₂·HCl
Molecular Weight: 300.83 g/mol
Appearance: A fine, white or almost white, crystalline powder.
Solubility: Freely soluble in water, soluble in ethanol, and very slightly soluble in chloroform or acetone.
Melting Point: Approximately 148°C – 154°C (with decomposition).
pKa: ~8.2 –
