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140128-58-1

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140128-58-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140128-58-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,1,2 and 8 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 140128-58:
(8*1)+(7*4)+(6*0)+(5*1)+(4*2)+(3*8)+(2*5)+(1*8)=91
91 % 10 = 1
So 140128-58-1 is a valid CAS Registry Number.

140128-58-1Downstream Products

140128-58-1Relevant articles and documents

Orally active cephalosporins. IV. Synthesis, antibacterial activity and oral absorption of 3-(1H-1,2,3-triazol-4-yl)thiomethylthio-cephalosporins

Kume,Kubota,Kimura,Nakashimizu,Motokawa

, p. 758 - 762 (2007/10/02)

The synthesis, antibacterial activity and oral absorption of 3-(1H-1,2,3-triazol-4-yl)thiomethylthio-3-cephem-4-carboxylic acids with various C-7 side chains (2) are described. The (1H-1,2,3-triazol-4-yl)thiomethylthio C-3 side chain was found to be an effective substituent for good oral absorption of cephalosporins with some C-7 side chains.

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