403661-10-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 403661-10-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,3,6,6 and 1 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 403661-10:
(8*4)+(7*0)+(6*3)+(5*6)+(4*6)+(3*1)+(2*1)+(1*0)=109
109 % 10 = 9
So 403661-10-9 is a valid CAS Registry Number.
403661-10-9Relevant articles and documents
Synthesis of 2-[(Z)-1-hydropolyfluoro-1-alkenyl]-4H-3,1-benzoxazin-4-ones
Liu,Lue
, p. 213 - 216 (2001)
N,N′-dicyclohexylcarbodiimide induced condensation of 2,2-dihydropolyfluoroalkanoic acid and anthranilic acid or its derivatives followed by a dehydrating ring-closure reaction in the presence of Ac2O gave 2-[(Z)-1-hydropolyfluoro-1-alkenyl]-4H-3,1-benzoxazin-4-ones in good to excellent yields.
