CAS Registry Number

CAS 143-66-8 — Sodium tetraphenylborate

Sodium tetraphenylborate (NaBPh₄) is an organoboron compound widely used as a selective precipitating agent for potassium ions in analytical chemistry, pharmaceutical formulations, and electrochemical sensors. It appears as a white crystalline powder with high solubility in polar solvents. CAS 143-66-8, molecular formula C₂₄H₂₀BNa, molecular weight 342.22 g/mol. Store at ambient conditions. Hazard classification: Danger (signal word), with risks including skin irritation and toxicity if inhaled or ingested. Molekula supplies Sodium tetraphenylborate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.