1549993-87-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1549993-87-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,4,9,9,9 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1549993-87:
(9*1)+(8*5)+(7*4)+(6*9)+(5*9)+(4*9)+(3*3)+(2*8)+(1*7)=244
244 % 10 = 4
So 1549993-87-4 is a valid CAS Registry Number.
1549993-87-4Relevant academic research and scientific papers
2-Chlorotetrafluoroethanesulfinamide induced asymmetric vinylogous Mannich reaction
Liu, Li-Juan,Liu, Jin-Tao
, p. 1236 - 1245 (2014/02/14)
The generality of (S)-2-chlorotetrafluoroethanesulfinamide (CTFSA) induced asymmetric vinylogous Mannich (AVM) addition reaction has been investigated. The reaction of aldimines derived from (S)-CTFSA with 2-(tert- butyldimethylsilyloxy) furan (TBSOF) too
