104146-14-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104146-14-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,1,4 and 6 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 104146-14:
(8*1)+(7*0)+(6*4)+(5*1)+(4*4)+(3*6)+(2*1)+(1*4)=77
77 % 10 = 7
So 104146-14-7 is a valid CAS Registry Number.
104146-14-7Relevant articles and documents
DEPLETION OF E-ISOMERS IN PREPARATION OF Z-ENRICHED 3-(2-SUBSTITUTED VINYL) CEPHALOSPORINS
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Page/Page column 16, (2008/06/13)
The present invention relates to depleting E-isomers of 3-(2-substituted vinyl) cephalosporins from a Z/E mixture of the same by selective crystallization techniques. The present invention to Z-enriched compounds comprising less than 5 % E-isomer.
