Product #: 500012


Formula Weight: 206.15 g/mol
CAS #: 67276-04-4
EINECS: 266-630-5
Boranes Calselect Na

0.898 g/cm³ at 21°C

0.864 g/cm³ at 55°C

Boiling Point

66°C as THF

Flash Point

-14.4°C for THF (closed cup)

Physical Properties
Physical Form
Liquid - Solution in THF (1 Molar)
The color of a THF solution of CalSelect Na ranges from light to dark yellow. Callery has shown that the color does not interfere with the unique selectivity or isolation of a colorless product upon work-up. Contact our customer care group for details.
CalSelect Na (Sodium tri-sec-butylborohydride (NaTSBBH)) is soluble in THF, dimethoxyethane, diethylether and toluene,and only slightly soluble in alkanes. Solubility limits for NaTSBBH have not been established.
Highly stereoselective and highly regioselective reduction.
Analysis Method
Base titration for concentration. Molarity calculated based upon total base
Analytical Note
11B NMR: -6.5 (d)
Storage & Shipping
Shelf Life
Three years in unopened, original packaging. Based upon like compounds.
Storage / Stability
CalSelect Na solutions are stable under normal inert conditions. They will readily oxidize or hydrolyze (hydrogen gas is liberated) if not carefully stored and handled under inert atmosphere.

Packaging Packaged in cylinders:

  • 900 mL, containing 650 g solution
  • 18 L, containing 16 kg solution
  • 90 L, containing 80 kg solution
  • 400 L, containing 350 kg solution
  • UN-3129, PGI
  • Flammable liquid, corrosive, dangerous when wet
Safety & Service
Health & Safety

See product MSDS

Technical Service
Available for all Callery products. Please contact your local representative for more details.

Related Products