33725-74-5 Usage
Chemical Properties
white crystalline powder
Uses
Tetrabutylammonium Borohydride is a strong reducing agent used in the synthesis of hyperbranched polyglycerol grafting on the surface of silica-coated nanoparticles.
Purification Methods
Purify it by recrystallisation from EtOAc followed by careful drying under vacuum at 50-60o. Samples purified in this way showed no signs of loss of active H after storage at room temperature for more than 1year. Nevertheless samples should be stored at ca 6o in tightly stoppered bottles if kept for long periods. It is soluble in CH2Cl2. [Raber & Guida J Org Chem 41 690 1976, Br.ndstr.m et al. Tetrahedron Lett 3173 1972.]
Check Digit Verification of cas no
The CAS Registry Mumber 33725-74-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,7,2 and 5 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 33725-74:
(7*3)+(6*3)+(5*7)+(4*2)+(3*5)+(2*7)+(1*4)=115
115 % 10 = 5
So 33725-74-5 is a valid CAS Registry Number.
InChI:InChI=1/C16H36N.BH5/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4;/h5-16H2,1-4H3;1H5/q+1;-1