138833-13-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138833-13-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,8,3 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138833-13:
(8*1)+(7*3)+(6*8)+(5*8)+(4*3)+(3*3)+(2*1)+(1*3)=143
143 % 10 = 3
So 138833-13-3 is a valid CAS Registry Number.
138833-13-3Relevant articles and documents
Enantioselective catalytic reductions of ketones: Synthesis and application of a new structurally rigid bicyclic catalyst
Wallbaum,Martens
, p. 1093 - 1096 (1991)
The oxazaborolidine catalyst from (1R,3R,5R)-3-(diphenylhydroxymethyl)-2-azabicyclo[3.3.0]octane (1R,3R,5R)-3 has been used in the enantioselective homogenous reductions of prochiral ketones with borane.