Betamethasone-d5

Betamethasone-d5 is intended for use as an internal standard for the quantification of betamethasone (Cay-20363) by GC- or LC-MS. Betamethasone is a synthetic corticosteroid. In vivo, betamethasone (5 mg/kg) reduces bronchoalveolar lavage fluid (BALF) matrix metalloproteinase-2 (MMP-2) and MMP-9 activities, TNF-alpha levels, and neutrophil number in a mouse model of LPS-induced lung injury. Prenatal administration of betamethasone (0.1 mg/kg) improves neonatal lung function but decreases hippocampal and corpus callosum neuron density and induces motor function deficits in a rabbit model of late preterm birth. It also extends gestational length in a rat model of preterm labor induced by high mobility group protein B1 (HMGB1). Formulations containing betamethasone have been used in the treatment of inflammatory skin conditions and prenatally to promote fetal lung maturation.Formal Name: 9-fluoro-11,17,21-trihydroxy-16-methyl-pregna-1,4-diene-3,20-dione-4,6,11,12,12-d5. CAS Number: 2244574-92-1. Synonyms: beta-Methasone-d5. Molecular Formula: C22H24D5FO5. Formula Weight: 397.5. Purity: >99% deuterated forms (d1-d5). Formulation: (Request formulation change), A solid. Solubility: DMSO: Soluble, Methanol: Soluble. SMILES: O=C1C=C[C@@]2(C)C(C([2H])C[C@]3([H])[C@]2(F)[C@](O)([2H])C([2H])([2H])[C@@]4(C)[C@@]3([H])C[C@H](C)[C@]4(O)C(CO)=O)=C1[2H]. InChi Code: InChI=1S/C22H29FO5/c1-12-8-16-15-5-4-13-9-14(25)6-7-19(13,2)21(15,23)17(26)10-20(16,3)22(12,28)18(27)11-24/h6-7,9,12,15-17,24,26,28H,4-5,8,10-11H2,1-3H3/t12-,15-,16-,17-,19-,20-,21-,22-/m0/s1/i4D,9D,10D2,17D/t4?,12-,15-,16-,17-,19-,20-,21-,22-. InChi Key: UREBDLICKHMUKA-RXBGCOSMSA-N.