318511-77-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 318511-77-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,8,5,1 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 318511-77:
(8*3)+(7*1)+(6*8)+(5*5)+(4*1)+(3*1)+(2*7)+(1*7)=132
132 % 10 = 2
So 318511-77-2 is a valid CAS Registry Number.
318511-77-2Relevant articles and documents
Synthesis of tri- and tetrasubstituted furans catalyzed by trifluoroacetic acid
Stauffer, Frederic,Neier, Reinhard
, p. 3535 - 3537 (2000)
(matrix presented) Substituted 2-hydroxy-3-acetylfurans are synthesized by alkylation of tert-butyl acetoacetate with an α-haloketone followed by treatment of the obtained intermediate with trifluoroacetic acid (TFA). A second alkylation of the intermedia