66-dibromopenicillanic acidmethyl ester

Molecular Formula: C10H12Br2O3S
Molecular weight: 372.08
Structural formula:  
Appearance:

 

Melting point:

100~101℃

Optical rotation:

+140°~+142°

Content:

≤99.0%

Uses: key imtermediate for imipenem.