74805-43-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74805-43-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,8,0 and 5 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 74805-43:
(7*7)+(6*4)+(5*8)+(4*0)+(3*5)+(2*4)+(1*3)=139
139 % 10 = 9
So 74805-43-9 is a valid CAS Registry Number.
74805-43-9Relevant articles and documents
The Preparation and Reactions of 2-Benzyloxy-4-benzylideneoxazol-5-one
Jones, John H.,Witty, Michael J.
, p. 858 - 864 (2007/10/02)
The preparation of the title coumpound (4) and a survey of its chemistry are described.Its reactivity towards nucleophiles at C-5 is high compared with that of the corresponding 2-phenyl compound (1), and nucleophilic reagents attact (4) exclusively at th
