CAS Number: 28562-53-0
Chemical Formula: C₅H₇NO₃
Grado de pureza: Grado farmacéutico, pureza ≥99.0% (HPLC, external standard)
IUPAC Name: (4-oxoazetidin-2-yl) acetate
EC Number: 249-083-7
Molecular Weight: 129.11
Aspecto: Polvo cristalino blanco o casi blanco
Aplicación: Intermedio para la síntesis de antibióticos β-lactámicos (carbapenems, penems)

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Descripción adicional:

4-Acetoxyazetidin-2-one (4AA) is an important intermediate used to synthesize beta-lactam antibiotics such as carbapenems and penems. Offered at pharmaceutical grade — though not directly manufactured — by Hebei Wordstar Chemical Co.,Ltd, it is described as a white to off-white crystalline powder with an assay of no less than 99.0% by HPLC and a specific optical rotation of +47° to +51°; it is distributed across North America, Central/South America, Western and Eastern Europe, Australasia, Asia, the Middle East, and Africa.