1198158-28-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1198158-28-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,8,1,5 and 8 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1198158-28:
(9*1)+(8*1)+(7*9)+(6*8)+(5*1)+(4*5)+(3*8)+(2*2)+(1*8)=189
189 % 10 = 9
So 1198158-28-9 is a valid CAS Registry Number.
1198158-28-9Relevant articles and documents
Regioselective synthesis of β-fluoro-α,β-unsaturated ketones by the reaction of β-diketones with DFMBA
Sano, Keisuke,Fukuhara, Tsuyoshi,Hara, Shoji
, p. 708 - 713 (2009)
The deoxyfluorination reaction of β-diketones with N,N-diethyl-α,α-difluoro-m-methylbenzylamine (DFMBA) gave β-fluoro-α,β-unsaturated ketones in good yields. The reaction proceeded regioselectively, and only one regioisomer was obtained from the unsymmetr
