62987-28-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 62987-28-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,2,9,8 and 7 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 62987-28:
(7*6)+(6*2)+(5*9)+(4*8)+(3*7)+(2*2)+(1*8)=164
164 % 10 = 4
So 62987-28-4 is a valid CAS Registry Number.
62987-28-4Relevant academic research and scientific papers
Process for preparation of 7-alkoxy-3-chloromethylcephems
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, (2008/06/13)
7-Alkoxy-3-chloromethyl-3-cephems are provided by reacting a 3-methylenecepham with an alkali metal salt of a lower primary alcohol in the presence of tert-butyl hypochlorite at a temperature ranging from about -80° to about 0° C. The 3-chloromethylcephem
