819-21-6 Usage
Type of compound
Organotin compound
Structure
Central tin atom bonded to two oxygen atoms, two fluorine atoms, and two butyl groups
Physical state
Colorless, oily liquid
Uses
Chemical intermediate in the production of plastics, polymers, and pharmaceuticals
Application
Used as a catalyst in organic synthesis due to its high affinity for bonding to organic molecules
Toxicity
Exposure associated with toxic effects on the central nervous system, liver, and kidneys
Safety measures
Handle and use with caution and appropriate safety measures to minimize health risks
Check Digit Verification of cas no
The CAS Registry Mumber 819-21-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,1 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 819-21:
(5*8)+(4*1)+(3*9)+(2*2)+(1*1)=76
76 % 10 = 6
So 819-21-6 is a valid CAS Registry Number.
InChI:InChI=1/4C4H9.2FH.H2O.2Sn/c4*1-3-4-2;;;;;/h4*1,3-4H2,2H3;2*1H;1H2;;/q;;;;;;;2*+1/p-2/r2C8H18FSn.H2O/c2*1-3-5-7-10(9)8-6-4-2;/h2*3-8H2,1-2H3;1H2
819-21-6Relevant articles and documents
Reactivity behavior of (hydroxy)diorganotin(IV)methanesulfonates with ionic nucleophiles - Synthesis and structural characterization of novel diorganostannate salts, [R2Sn(μ-OH)(OSO2Me)(ONO 2)]22Bu4N
Shankar, Ravi,Kumar, Mukesh,Chadha, Raj K.,Narula, Suraj P.
, p. 71 - 75 (2008/10/08)
The reaction of R2Sn(OH)OSO2Me [R=n-Pr (1a), or n-Bu (1b)] with one equivalent of Bu4NNO3 in CH 2Cl2 proceeds via nucleophilic addition of NO 3- ion to the Lewis acidic tin center and results in the formation of novel diorganostannates, [R2Sn(μ-OH)(OSO 2Me)(ONO2)]22Bu4N [R=n-Pr (2a), n-Bu(2b)]. The molecular structure of 2b comprises of hydroxy-bridged dimer with monodentate methanesulfonate and nitrate groups bonded to each tin atom. Analogous reactions of the tin precursor, 1b with strong nucleophiles such as Bu4NX (X=F-, OAc-) and RLi (R=n-Bu, Me) favor ionic metathesis pathway involving Sn-OSO2Me bond cleavage. This approach provides a simple and facile synthetic route for triorganotin oxides, (R2R′Sn)2O (R=R′=n-Bu, R=n-Bu, R′=Me).