183989-92-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 183989-92-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,9,8 and 9 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 183989-92:
(8*1)+(7*8)+(6*3)+(5*9)+(4*8)+(3*9)+(2*9)+(1*2)=206
206 % 10 = 6
So 183989-92-6 is a valid CAS Registry Number.
183989-92-6Relevant articles and documents
Synthesis of indoles and quinolones by sequential Wittig and Heck reactions
Latham, Elliot J.,Stanforth, Stephen P.
, p. 2059 - 2063 (2007/10/03)
Trifluoroacetamido derivatives 18a-c and 19a-c react with phosphorane 2 in boiling toluene to give the corresponding enamines 12a-c and 13a-c respectively which are precursors of the trifluoromethylated indoles 14a-c and quinolones 15a-c.
