Sodium tert-butoxide CAS No 865-48-5

【Chemical Name】Sodium tert-Butoxide

【Other Name】Sodium 2-methylpropan-2-olate; Sodium t-Butoxide; Sodium Tertiary Butoxide; Sodium tert-Butylate; STB

【CAS No.】865-48-5

【Molecular Formula】C₄H₉NaO

【Molecular Weight】96.10 g/mol

【Product properties】White to off-white crystalline powder. Melting point 180°C. Strong base and non-nucleophilic base. Air sensitive and hygroscopic; reacts with water. Acts as a catalyst in polymerization and isomerization reactions.

【Storage】Store in a cool, dry, well-ventilated area. Keep container tightly closed. Protect from moisture, air, and sunlight. Store under inert gas when possible. Keep away from ignition sources and incompatible materials.

【Packing】25 kg / composite paper bag with plastic liner; 20 kg, 25 kg / fiber drum; 100 kg / drum; also available in 100 g, 500 g, 1 kg, 5 kg, 10 kg, 50 kg pack sizes. Custom packaging available upon request.

【Application】Strong base widely used in organic synthesis for deprotonation, condensation, rearrangement, and ring-opening reactions. Key intermediate in pharmaceuticals, agrochemicals, colorants, aroma chemicals, detergents, and biodiesel production. Also used as a base in palladium-catalyzed amination and coupling reactions.

【Product Specification】

| Item | First Grade |

|---|---|

| Appearance | White to off-white powder |

| Purity (Assay) | ≥98% (First Grade), ≥97% (Qualified) |

| Hydroxide & Carbonate (as NaOH) | ≤2% |

| Melting Point | 180°C |

| Flash Point | 12°C |

| CAS No. | 865-48-5 |

| EINECS | 212-741-9 |