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139306-26-6

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139306-26-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139306-26-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,3,0 and 6 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 139306-26:
(8*1)+(7*3)+(6*9)+(5*3)+(4*0)+(3*6)+(2*2)+(1*6)=126
126 % 10 = 6
So 139306-26-6 is a valid CAS Registry Number.

139306-26-6Downstream Products

139306-26-6Relevant articles and documents

Synthesis of Bicyclic Pyridone and Dihydropyridone Analogues of β-Lactam Antibiotics

Capps, Nigel K.,Davies, Gareth M.,Loakes, David,McCabe, Richard W.,Young, Douglas W.

, p. 3077 - 3086 (2007/10/02)

Condensation of the vinylogous urethanes 2, 26, 28 and 29 with acrylates, haloacrylates and propiolic acid has afforded easy access to bicyclic dihydropyridone and pyridone analogues of cephalosporins, carbapenams, penicillins and bisnorpenicillins.Synthe

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