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91661-59-5

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91661-59-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91661-59-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,6,6 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 91661-59:
(7*9)+(6*1)+(5*6)+(4*6)+(3*1)+(2*5)+(1*9)=145
145 % 10 = 5
So 91661-59-5 is a valid CAS Registry Number.

91661-59-5Relevant articles and documents

Synthesis and Evaluation of Tylosin-Related Macrolides Modified at the Aldehyde Function: A New Series of Orally Effective Antibiotics

Kirst, Herbert A.,Toth, John E.,Debono, Manuel,Willard, Kevin E.,Truedell, Brenda A.,et al.

, p. 1631 - 1641 (1988)

Modification of the aldehyde group in tylosin and related macrolide antibiotics dramatically enhanced the oral efficacy of the derivatives against experimental infections caused by susceptible bacteria in laboratory animals.A large number and wide variety

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