219676-45-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219676-45-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,6,7 and 6 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 219676-45:
(8*2)+(7*1)+(6*9)+(5*6)+(4*7)+(3*6)+(2*4)+(1*5)=166
166 % 10 = 6
So 219676-45-6 is a valid CAS Registry Number.
219676-45-6Relevant articles and documents
Enantioselective Preparation of (2R)- and (2S)-Azetidine-2-carboxylic Acids
Wessig, Pablo,Schwarz, Jutta
, p. 1803 - 1814 (1998)
The enantiomerically pure amino ketones 13 and 31 were prepared starting from the commercially available amino diol 9 and D-serine (21), respectively. Irradiation afforded highly functionalized azetidinols 15 and 33 in a fully stereoselective manner and i
