64218-77-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64218-77-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,2,1 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 64218-77:
(7*6)+(6*4)+(5*2)+(4*1)+(3*8)+(2*7)+(1*7)=125
125 % 10 = 5
So 64218-77-5 is a valid CAS Registry Number.
64218-77-5Relevant academic research and scientific papers
Beta-lactams, their production from azetidine carboxylic acids, intermediates thereto and derivatives thereof
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, (2008/06/13)
Azetidine-2-carboxylic acids are transformed readily to the corresponding beta-lactams by iminium salt formation and reaction of the salt with a suitable nucleophile. The beta-lactams and substitution products thereof are useful intermediates in the synth
