143687-51-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143687-51-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,6,8 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 143687-51:
(8*1)+(7*4)+(6*3)+(5*6)+(4*8)+(3*7)+(2*5)+(1*1)=148
148 % 10 = 8
So 143687-51-8 is a valid CAS Registry Number.
143687-51-8Relevant articles and documents
Titanium tetrachloride-mediated enantioselective synthesis of trans β-lactones
Cardani, Silvia,De Toma, Carlo,Gennari, Cesare,Scolastico, Carlo
, p. 5557 - 5564 (2007/10/02)
Pharmacologically interesting trans β-lactones 11 and 16 were synthesized using a titanium tetrachloride-mediated enantioselective aldol reaction as the key synthetic step (see Scheme 2).