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161857-05-2

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161857-05-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 161857-05-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,8,5 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 161857-05:
(8*1)+(7*6)+(6*1)+(5*8)+(4*5)+(3*7)+(2*0)+(1*5)=142
142 % 10 = 2
So 161857-05-2 is a valid CAS Registry Number.

161857-05-2Downstream Products

161857-05-2Relevant articles and documents

2-thiosubstituted carbapenems

-

, (2008/06/13)

Carbapenem antibiotic compounds of the general formula: STR1 wherein the moiety STR2 is a 4, 5 or 6 membered mono, di- or tri- substituted oxygen or sulfur containing ring; wherein Z is oxygen, sulfur, sulfoxide and sulfone, pharmaceutical compositions thereof useful for the treatment of bacterial infections, processes for preparing the compounds and new intermediates useful in the process.

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