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90181-37-6

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90181-37-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90181-37-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,1,8 and 1 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 90181-37:
(7*9)+(6*0)+(5*1)+(4*8)+(3*1)+(2*3)+(1*7)=116
116 % 10 = 6
So 90181-37-6 is a valid CAS Registry Number.

90181-37-6Downstream Products

90181-37-6Relevant articles and documents

N-TETRAZOLYL BETA-LACTAMS

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, (2008/06/13)

N-tetrazolyl beta-lactams of the Formula: and the pharmaceutically acceptable salts thereof wherein R2 is hydrogen, alkyl having 1 to 6 carbon atoms or carboalkoxy having 2 to 7 carbon atoms; and Z is and W is thus forming a zwitterion, or Z is wherein R1 is benzyl, phenyloxymethyl or wherein Y is alkoxy or substituted alkoxy having 1 to 6 carbon atoms wherein the substituent on the alkoxy group is --COOH; and W is wherein R3 is H, M or --CH2COOM, wherein M is a pharmaceutically acceptable cation are disclosed. The compounds are useful as antibiotics

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