Form
Powder
Appearance
Whitetopalewhitecrystallinepowder
Source
Synthetic
pH
5.5-6.5
OpticalRotation
+108°to+114°
Assay
(AsIs):900μg/mg
LossonDrying
≤1.0%
ResidueOnIgnition
≤0.5%
D-cycloserineisanaminoacidanalogantibiotic.D-cycloserineactsasacompetitiveinhibitorofD-alanine,anessentialaminoacidduringpeptidoglycansynthesis.D-cycloserineissolubleinaqueoussolution.
68-41-7
C3H6N2O2
102.09
D-Cycloserineinhibitscellwallbiosynthesis(D-Alapeptidebondformation).TheterminaltwoaminoacidresiduesofthemureinprecursorlipidIIconsistofD-alanine,whichisproducedbytheenzymealanineracemase;thetworesiduesarejoinedbyD-alanineligase.Bothenzymesarecompetitivelyinhibitedbycycloserine.
-20°C
2941.90.1050
D-cycloserinebroadspectrumantibioticbutislargelyusedagainstbacteriawhichcausetuberculosisnamelyMycobacteriumtuberculosis.
Powder
Whitetopalewhitecrystallinepowder
Synthetic
5.5-6.5
+108°to+114°
(AsIs):900μg/mg
≤1.0%
≤0.5%