141104-45-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 141104-45-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,1,0 and 4 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 141104-45:
(8*1)+(7*4)+(6*1)+(5*1)+(4*0)+(3*4)+(2*4)+(1*5)=72
72 % 10 = 2
So 141104-45-2 is a valid CAS Registry Number.
141104-45-2Relevant articles and documents
Regioselective synthesis of 4-(aryloxymethyl)thiopyrano[2,3-b][1]benzothiopyran-5(dH)-ones
Majumdar,Khan,Saha
, p. 901 - 912 (2007/10/02)
Phase transfer catalysed alkylation of 4-hydroxy dithiocoumarin (3) with a number of 1-aryloxy-4-chloro-but-2-ynes (4) furnished several 2-(4'-aryloxy-but-2'-ynyl thio)-[1]-benzothiopyran-4-ones (5) which when heated in chlorobenzene gave hitherto unrepor