848770-52-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 848770-52-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,8,7,7 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 848770-52:
(8*8)+(7*4)+(6*8)+(5*7)+(4*7)+(3*0)+(2*5)+(1*2)=215
215 % 10 = 5
So 848770-52-5 is a valid CAS Registry Number.
848770-52-5Relevant articles and documents
CEPHEM COMPOUNDS
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Page/Page column 50-51, (2010/02/11)
The present invention relates to a compound of the formula [I]: wherein R1 is lower alkyl or hydroxy (lower) alkyl, and R2 is hydrogen or amino protecting group, or R1 and R2 are bonded together and form lower a