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87343-31-5

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87343-31-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87343-31-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,3,4 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 87343-31:
(7*8)+(6*7)+(5*3)+(4*4)+(3*3)+(2*3)+(1*1)=145
145 % 10 = 5
So 87343-31-5 is a valid CAS Registry Number.

87343-31-5Downstream Products

87343-31-5Relevant articles and documents

Orally effective acid prodrugs of the β-lactamase inhibitor sulbactam

English,Girard,Jasys,Martingano,Kellogg

, p. 344 - 347 (2007/10/02)

Sulbactam (1) is a β-lactamase inhibitor with limited oral bioavailability. Lipophilic double-ester prodrug sulbactam pivoxil (2) significantly improves the oral absorption of sulbactam, as does the mutual prodrug double ester sultamicillin (3). We have found that double-ester prodrugs of sulbactam terminating in a carboxyl group (8) also were effective oral-delivery vehicles in rats. Carboxyl-terminated double esters have several potential advantages over their nonionizable lipophilic counterparts, including water solubility, crystallinity, choice of salts for dosage forms, and formation of innocuous byproducts on hydrolysis.

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