Title: Amoxicillin
CAS Registry Number: 26787-78-0
CAS Name: (2
S,5
R,6
R)-6-[[(2
R)-Amino(4-hydroxyphenyl)acetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
Synonyms: (-)-6-[2-amino-2-(
p-hydroxyphenyl)acetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid; 6-[D(-)-a-amino-
p-hydroxyphenylacetamido]penicillanic acid; a-amino-
p-hydroxybenzylpenicillin; 6-(
p-hydroxy-a-aminophenylacetamido)penicillanic acid;
p-hydroxyampicillin; amoxycillin; AMPC
Trademarks: Helvamox (Helvepharm); Pasetocin (Kyowa); Penimox (IBSA); Supramox (Grñenthal); Zamocilline (Inpharzam)
Molecular Formula: C16H19N3O5S
Molecular Weight: 365.40
Percent Composition: C 52.59%, H 5.24%, N 11.50%, O 21.89%, S 8.78%
Literature References: Semi-synthetic antibiotic related to penicillin. Prepn: Nayler, Smith,
GB 978178 (1964 to Beecham);
eidem, US 3192198 (1965); Long, Nayler,
DE 1942693 and
GB 1241844 (1970 and 1971 to Beecham),
C.A. 72, 90447q (1970). Resolution of isomers: Long
et al., J. Chem. Soc. C 1971, 1920. Series of articles on activity, pharmacology, absorption and excretion:
Antimicrob. Agents Chemother. 1970, 407-430. Review of antibacterial activity, pharmacokinetics and therapeutic use: R. N. Brogden
et al., Drugs 18, 169-184 (1979). Comprehensive description: A. E. Bird,
Anal. Profiles Drug Subs. Excip. 23, 1-52 (1994).
Derivative Type: Trihydrate
CAS Registry Number: 61336-70-7
Manufacturers' Codes: BRL-2333
Trademarks: Agram (Fabre); Alfamox (Teofarma); Amocilline (Inpharzam); Amodex (Bouchara); Amoram (Eastern); Amoxidin (Lagap); Amoxil (GSK); Amoxillat (Novartis); Amoxypen (Grñenthal); Ardine (Antibioticos); Bactox (Innotech); Betamox (Norbrook); Bristamox (BMS); Cuxacillin (TAD); Flemoxine (Yamanouchi); Gramidil (Dexo); Hiconcil (BMS); Larotid (Roche); Ospamox (Novartis); Polymox (BMS); Robamox (Wyeth); Sigamopen (Alpharma); Trimox (BMS); Velamox (GSK); Widecillin (Meiji); Wymox (Wyeth); Zimox (Pfizer)
Properties: Off-white crystalline powder. [a]D20 +246° (c = 0.1). uv max (ethanol): 230, 274 nm (e 10850, 1400); (0.1
N HCl): 229, 272 nm (e 9500, 1080); (0.1
N KOH): 248, 291 (e 2200, 3000). Solubility (mg/ml): water 4.0; methanol 7.5; abs ethanol 3.4. Insol in hexane, benzene, ethyl acetate, acetonitrile.
Optical Rotation: [a]D20 +246° (c = 0.1)
Absorption maximum: uv max (ethanol): 230, 274 nm (e 10850, 1400); (0.1
N HCl): 229, 272 nm (e 9500, 1080); (0.1
N KOH): 248, 291 (e 2200, 3000)
Derivative Type: Sodium salt
CAS Registry Number: 34642-77-8
Trademarks: Clamoxyl (GSK); Ibiamox (IBI)
Molecular Formula: C16H18N3NaO5S
Molecular Weight: 387.39
Percent Composition: C 49.61%, H 4.68%, N 10.85%, Na 5.93%, O 20.65%, S 8.28%
Therap-Cat: Antibacterial.
Therap-Cat-Vet: Antibacterial.
Keywords: Antibacterial (Antibiotics); ?Lactams; Penicillins.
![CAS No:26787-78-0 (2S,5R,6R)-6-[[(2R)-2-amino-2-(4-hydroxyphenyl)acetyl]amino]-3,<br />3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid](/structure/cas-267/26787-78-0.png)
