157487-23-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157487-23-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,4,8 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 157487-23:
(8*1)+(7*5)+(6*7)+(5*4)+(4*8)+(3*7)+(2*2)+(1*3)=165
165 % 10 = 5
So 157487-23-5 is a valid CAS Registry Number.
157487-23-5Relevant articles and documents
Formation of 1H-aziridines from chalcones and hydroxylamine
Kammermeier,Kaiser,Lee,Burgemeister,Wiegrebe
, p. 207 - 210 (2007/10/02)
Highly substituted chalcones 1 do not react with two molecules of hydroxylamine affording dioximes 2 or hydroxyamino-oximes 3 as expected according to von Auwers' procedure: only one molecule of hydroxylamine is consumed leading to trans-configurated 2-be
