402728-98-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 402728-98-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,7,2 and 8 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 402728-98:
(8*4)+(7*0)+(6*2)+(5*7)+(4*2)+(3*8)+(2*9)+(1*8)=137
137 % 10 = 7
So 402728-98-7 is a valid CAS Registry Number.
402728-98-7Relevant articles and documents
Reactivity of stable trifluoroacetaldehyde hemiaminals. 2. Generation and synthetic potentialities of fluorinated iminiums
Billard, Thierry,Langlois, Bernard R.
, p. 997 - 1000 (2007/10/03)
Under Lewis acid activation, hemiaminals of trifluoroacetaldehyde and related (fluoroalkyl)-aldehydes generate iminium species that can react with various nucleophiles to provide fluorinated amines.