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(1S,6R)-8-Oxo-7-aza-bicyclo[4.2.0]octane-7-carboxylic acid (4-chloro-phenyl)-amide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

129169-57-9

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129169-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129169-57-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,1,6 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 129169-57:
(8*1)+(7*2)+(6*9)+(5*1)+(4*6)+(3*9)+(2*5)+(1*7)=149
149 % 10 = 9
So 129169-57-9 is a valid CAS Registry Number.

129169-57-9Relevant academic research and scientific papers

STEREOCHEMICAL STUDIES, 144. SATURATED HETEROCYCLES, 151. PREPARATION OF cis AND trans-CYCLOALKANE-CONDENSED PYRIMIDINEDIONES BY AZETIDINONE RING TRANSFORMATION

Stajer, Geza,Szoeke-Molnar, Zsolt,Bernath, Gabor,Sohar, Pal

, p. 1943 - 1950 (2007/10/02)

N-substituted derivatives (3 and 4) obtained from cyclopentane- and cyclohexane-azetidinones (1 and 2) were isomerized with polyphosphoric acid to give cyclopentane-cis- (6) and cyclohexane-trans-condensed (7) 2,4-pyrimidinediones.The structures of the dihydrouracils prepared by the ring transformation were proved by 1H- and 13C-nmr spectroscopy and by comparison with the compounds synthesized from cis- and trans-2-amino-1-cycloalkanecarboxamides (11-13) with 1,1'-carbonyldiimidazole.

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