255896-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 255896-81-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,5,8,9 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 255896-81:
(8*2)+(7*5)+(6*5)+(5*8)+(4*9)+(3*6)+(2*8)+(1*1)=192
192 % 10 = 2
So 255896-81-2 is a valid CAS Registry Number.
255896-81-2Relevant academic research and scientific papers
Asymmetric synthesis of syn hydroxyphenylalanine via aziridine ring expansion to an oxazoline
Cardillo, Giuliana,Gentilucci, Luca,Tolomelli, Alessandra
, p. 8261 - 8264 (2007/10/03)
The synthesis of (2R,3S)- and (2S,3R)-hydroxyphenylalanine is reported. The main steps are the 1,4-addition of O-benzylhydroxylamine to unsaturated imides and the ring expansion of trans-aziridines.
