68997-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68997-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,9,9 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 68997-57:
(7*6)+(6*8)+(5*9)+(4*9)+(3*7)+(2*5)+(1*7)=209
209 % 10 = 9
So 68997-57-9 is a valid CAS Registry Number.
68997-57-9Relevant articles and documents
Nucleophilic deoxyfluorination of catechols
Nemoto, Hiroyuki,Nishiyama, Tsuyoshi,Akai, Shuji
, p. 2714 - 2717 (2011/06/28)
Nucleophilic deoxyfluorinaiton of one of the two hydroxyl groups of catechols has been developed via the Umpolung concept. This method was successively applied to naturally occurring catechols, such as catechins and dopamine, to produce novel fluorinated
