Derivative Type: Fumarate dihydrate
CAS Registry Number: 43229-80-7Trademarks: Atock (Yamanouchi); Foradil (Novartis); Oxeze (AstraZeneca)
Percent Composition: C 59.99%, H 6.71%, N 6.66%, O 26.64%
Properties: Crystals from 95% isopropyl alcohol, mp 138-140°. pKa1 7.9; pKa2 9.2. Log P (octanol/water): 0.4 (pH 7.4). Freely sol in glacial acetic acid; sol in methanol; sparingly sol in ethanol, isopropanol; slightly sol in water. Practically insol in acetone, ethyl acetate, diethyl ether. LD50 in male, female, rats, mice (mg/kg): 3130, 5580, 6700, 8310 orally; 98, 100, 72, 71 i.v.; 1000, 1100, 640, 670 s.c.; 170, 210, 240, 210 i.p. (Yoshida).
Melting point: mp 138-140°
pKa: pKa1 7.9; pKa2 9.2
Log P: Log P (octanol/water): 0.4 (pH 7.4)
Toxicity data: LD50 in male, female, rats, mice (mg/kg): 3130, 5580, 6700, 8310 orally; 98, 100, 72, 71 i.v.; 1000, 1100, 640, 670 s.c.; 170, 210, 240, 210 i.p. (Yoshida)
Derivative Type: R,R-Form
CAS Registry Number: 67346-49-0
Additional Names: Arformoterol
Derivative Type: R,R-Form L-tartrate
CAS Registry Number: 200815-49-2
Additional Names: Arformoterol tartrate
Percent Composition: C 55.86%, H 6.12%, N 5.67%, O 32.36%
Literature References: Prepn: Y. Gao et al.,
WO
9821175; eidem,
US
6040344 (1998, 2000 both to Sepracor). Pharmacology: D. A. Handley et al., Pulm. Pharmacol. Ther.
15, 135 (2002).
Properties: Off-white powder, mp 184°.
Melting point: mp 184°
Therap-Cat: Antiasthmatic.
Keywords: ?Adrenergic Agonist; Bronchodilator; Ephedrine Derivatives.
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