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119139-26-3

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119139-26-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119139-26-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,1,3 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 119139-26:
(8*1)+(7*1)+(6*9)+(5*1)+(4*3)+(3*9)+(2*2)+(1*6)=123
123 % 10 = 3
So 119139-26-3 is a valid CAS Registry Number.

119139-26-3Relevant articles and documents

ALTERNATIVE SYNTHESES OF AZEPINOMYCIN

Fujii, Tozo,Saito, Tohru,Fujisawa, Tetsunori

, p. 1163 - 1166 (2007/10/02)

Three alternative syntheses of the antibiotic azepinomycin (XI) have now become feasible through a route starting from the monocycles Va-c and proceeding through the intermediates VIa-c, VIIa-c, VIIIa-c, IXa-c, and XIIa,b and 3-β-D-ribofuranosylazepinomycin (XIIc). The permutation IXa-Xa-XI was also found to be feasible. The starting materials Va-c were readily prepared from IIa-c through IIIa-c and IVa-c.

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