Antibiotic fr 1923 cas no:39391-39-4

Synonyms: (3S,αR)-3-[[[4-[(R)-3-Amino-3-carboxypropoxy]phenyl]-[(Z)-hydroxyimino]acetyl]amino]-α-(4-hydroxyphenyl)-2-oxo-1-azetidineacetic acid;(3S,αR)-3β-[[[4-[(3R)-3-Amino-3-carboxypropoxy]phenyl][(Z)-hydroxyimino]acetyl]amino]-α-(4-hydroxyphenyl)-2-oxo-1-azetidineacetic acid;Antibiotic FR-1923;FR-1923;FR-1923C;Nocardicin A

Identification

NameAntibiotic fr 1923
CAS39391-39-4
Synonyms(3S,αR)-3-[[[4-[(R)-3-Amino-3-carboxypropoxy]phenyl]-[(Z)-hydroxyimino]acetyl]amino]-α-(4-hydroxyphenyl)-2-oxo-1-azetidineacetic acid;(3S,αR)-3β-[[[4-[(3R)-3-Amino-3-carboxypropoxy]phenyl][(Z)-hydroxyimino]acetyl]amino]-α-(4-hydroxyphenyl)-2-oxo-1-azetidineacetic acid;Antibiotic FR-1923;FR-1923;FR-1923C;Nocardicin A
Molecular FormulaC23H24N4O9
Molecular Weight0

Safety Data

Safety

Moderately toxic by intraperitoneal, subcutaneous, and intravenous routes. When heated to decomposition it emits toxic fumes of NO_x.

Toxicity

1.	ipr-rat LD50:2600 mg/kg	85ERAY Antibiotics: Origin, Nature, and Properties. 1 (1978),897.
2.	scu-rat LD50:3100 mg/kg	85ERAY Antibiotics: Origin, Nature, and Properties. 1 (1978),897.
3.	ipr-mus LD50:2500 mg/kg	85ERAY Antibiotics: Origin, Nature, and Properties. 1 (1978),897.
4.	scu-mus LD50:2900 mg/kg	85ERAY Antibiotics: Origin, Nature, and Properties. 1 (1978),897.
5.	ivn-mus LD50:2100 mg/kg	85ERAY Antibiotics: Origin, Nature, and Properties. 1 (1978),897.

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