CAS NO:90822-24-5;158299-05-9;137391-68-5

EC NO:

Molecular Formula:C₁₆H₁₈BrNO₃

Molecular Weight:352.223

Synonyms:;BPSBC;BR-Comp;3-(2-bromopropanoyl)spiro[1,3-benzoxazine-2,1'-cyclohexan]-4(3H)-one;F-9;Meropenem Intermediates;Meropenem intermediates F–9;(3S,4R)-3-[(1R)-1-Hydroxyethyl]-4-[(1R)-1-methyl-3-diazo-3-(p-nitrobenzyloxycarbonyl)-2-oxopropyl]azetidin-2-one;F-9(Intermediate Of Meropenem);(R)-4-Nitrobenzyl 2-diazo-4-((2R,3S)-3-((R)-1-hydroxyethyl)-4-oxoazetidin-2-yl)-3-oxopentanoate;

Molecular Structure:

CAS NO:89785-84-2

EC NO:

Molecular Formula:C₁₀H₁₁N₄NaO₅S

Molecular Weight:322.2729

Synonyms:;4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 3-methyl-7-oxo-3-(1H-1,2,3-triazol-1-ylmethyl)-, 4,4-dioxide, sodium salt, (2S,3S)- (1:1);sodium (2S,3S)-3-methyl-7-oxo-3-(1H-1,2,3-triazol-1-ylmethyl)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate 4,4-dioxide;

Molecular Structure:

CAS NO:59703-84-3

EC NO:261-868-6

Molecular Formula:C₁₀H₁₁N₄NaO₅S

Molecular Weight:322.2729

Synonyms:;Piperacillin Sodium;sodium (2R,5S,6S)-6-{[(2R)-2-{[(4-ethyl-2,3-dioxopiperazin-1-yl)carbonyl]amino}-2-phenylacetyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate;sodium (2S,5R,6R)-6-{[(2R)-2-{[(4-ethyl-2,3-dioxopiperazin-1-yl)carbonyl]amino}-2-phenylacetyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate;sodium (2S,5R,6R)-6-{[{[(4-ethyl-2,3-dioxopiperazin-1-yl)carbonyl]amino}(phenyl)acetyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate;sodium (2S,5R,6R)-6-{[(2S)-2-{[(4-ethyl-2,3-dioxopiperazin-1-yl)carbonyl]amino}-2-phenylacetyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate;sodium (2S,3S,5R)-3-methyl-7-oxo-3-(1H-1,2,3-triazol-1-ylmethyl)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate 4,4-dioxide;

Molecular Structure: