51546-66-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51546-66-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,5,4 and 6 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 51546-66:
(7*5)+(6*1)+(5*5)+(4*4)+(3*6)+(2*6)+(1*6)=118
118 % 10 = 8
So 51546-66-8 is a valid CAS Registry Number.
51546-66-8Relevant academic research and scientific papers
Process for making a 2'-halopenicillin
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, (2008/06/13)
A 2'-halopenicillin compound is prepared from a penicillin-1-oxide compound by the action of an acid halide in the presence of a base. The product on heating rearranges to a 3-halo-3-methylcepham compound which itself gives a 3-methyl-3-cephem compound on
