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6,9-Dioxa-2,15-diazaheptadec-12-enedioic acid, 16-[(3-chloro-4-methoxyphenyl)methyl]-10-[(1R,2E)-1-methyl-3-phenyl-2 -propenyl]-7-(2-methylpropyl)-5,8,14-trioxo-3-(phenylmethyl)-, 1-(1,1-dimethylethyl) 17-(2,2,2-trichloroethyl) ester, (3R,7S,10S,12E,16R)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

193070-99-4

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193070-99-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 193070-99-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,3,0,7 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 193070-99:
(8*1)+(7*9)+(6*3)+(5*0)+(4*7)+(3*0)+(2*9)+(1*9)=144
144 % 10 = 4
So 193070-99-4 is a valid CAS Registry Number.

193070-99-4Relevant academic research and scientific papers

Synthesis and Biological Evaluation of Novel Cryptophycin Analogs with Modification in the β-Alanine Region

Shih, Chuan,Gossett, Lynn S.,Gruber, Joseph M.,Grossman, C. Sue,Andis, Sherri L.,et al.

, p. 69 - 74 (2007/10/03)

Structure modification of the β-alanine region (fragment C) of the potent antimitotic agent cryptophycin was investigated. This includes: (1) introduction of substituents at the previously unsubstituted C7 position of the macrolide ring and (2) replacement of the (2R)-3-amino-2-methyl-propanoic acid (β-alanine) with various (l)-amino acids to give the corresponding 15-membered unnatural cryptophycin analogs.

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