400-49-7 Usage
Synthesis Reference(s)
Journal of the American Chemical Society, 72, p. 4195, 1950 DOI: 10.1021/ja01165a102
Check Digit Verification of cas no
The CAS Registry Mumber 400-49-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,0 and 0 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 400-49:
(5*4)+(4*0)+(3*0)+(2*4)+(1*9)=37
37 % 10 = 7
So 400-49-7 is a valid CAS Registry Number.
InChI:InChI=1/C4H2F6O/c5-3(6,7)1-2(11)4(8,9)10/h1H2
400-49-7Relevant articles and documents
2H-Heptafluorobut-2-ene as a synthon for hexafluorobut-2-yne
Chambers, Richard D.,Roche, Alex J.
, p. 139 - 143 (2007/10/03)
Reactions of heptafluorobut-2-ene with nucleophiles are described, in some cases giving products analogous to those previously obtained from hexafluorobut-2-yne. Depending on the conditions, hydrolysis can lead to 1,1,1,4,4,4-hexafluorobutan-2-one, or 1,1,1-trifluoroacetone. Reactions with diols, bis-phenols, ammonia and amines are also described.