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71489-03-7

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71489-03-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71489-03-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,4,8 and 9 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 71489-03:
(7*7)+(6*1)+(5*4)+(4*8)+(3*9)+(2*0)+(1*3)=137
137 % 10 = 7
So 71489-03-7 is a valid CAS Registry Number.

71489-03-7Downstream Products

71489-03-7Relevant articles and documents

Semisynthetic Aminoglycoside Antibacterials. Part 10. Synthesis of Novel 1-N-Aminoalkoxycarbonyl and 1-N-Aminoalkylcarboxamido Derivatives of Sisomicin, Gentamicin B, Gentamicin C1a, and Kanamycin A

Mallams, Alan K.,Morton, James B.,Reichert, Paul

, p. 2186 - 2208 (2007/10/02)

Suitably protected derivatives of sisomicin, 5-epi-sisomicin, gentamicin B, gentamicin C1a, and kanamycin A have been converted into a series of 1-N-alkoxycarbonyl, 1-N-aminoalkoxycarbonyl, 1-N-carboxamido, 1-N-alkylcarboxamido, and 1-N-aminoal

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