143677-70-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143677-70-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,6,7 and 7 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 143677-70:
(8*1)+(7*4)+(6*3)+(5*6)+(4*7)+(3*7)+(2*7)+(1*0)=147
147 % 10 = 7
So 143677-70-7 is a valid CAS Registry Number.
143677-70-7Relevant 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).