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137553-19-6

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137553-19-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137553-19-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,5,5 and 3 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 137553-19:
(8*1)+(7*3)+(6*7)+(5*5)+(4*5)+(3*3)+(2*1)+(1*9)=136
136 % 10 = 6
So 137553-19-6 is a valid CAS Registry Number.

137553-19-6Downstream Products

137553-19-6Relevant articles and documents

Acylation of novobiocin by carboxylic acid anhydrides: Preparation and characterization of semi-synthetic novenamines

Berkov-Zrihen, Yifat,Rutenberg, Roi,Fridman, Micha

scheme or table, p. 2306 - 2312 (2012/04/04)

The acylation of novobiocin by carboxylic acid anhydrides leading to preparation of three families of semi-synthetic acylated novenamine analogues is reported. ESI-MS was used to monitor the reaction progress and enabled the isolation of intermediate compounds that provided insights into the sequence of acylation steps during the reaction. The chemoselectivity of the reaction depends on the carboxylic acid anhydride. The potential of the acylated novenamine analogues as leads for the development of antibacterial agents is discussed.

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