1220023-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1220023-77-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,0,0,2 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1220023-77:
(9*1)+(8*2)+(7*2)+(6*0)+(5*0)+(4*2)+(3*3)+(2*7)+(1*7)=77
77 % 10 = 7
So 1220023-77-7 is a valid CAS Registry Number.
1220023-77-7Relevant articles and documents
C-4" POSITION SUBSTITUTED MACROLIDE DERIVATIVE
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Page/Page column 72, (2012/09/11)
A macrolide compound represented by the formula (I) effective against erythromycin resistant bacteria (for example, resistant pneumococci, streptococci and mycoplasmas).