Structural Formula Vector Image
Title: Tizanidine
CAS Registry Number: 51322-75-9
CAS Name: 5-Chloro-N-(4,5-dihydro-1H-imidazol-2-yl)-2,1,3-benzothiadiazol-4-amine
Additional Names: 5-chloro-4-(2-imidazolin-2-ylamino)-2,1,3-benzothiadiazole
Molecular Formula: C9H8ClN5S
Molecular Weight: 253.71
Percent Composition: C 42.61%, H 3.18%, Cl 13.97%, N 27.60%, S 12.64%
Literature References: a2-Adrenergic agonist; centrally active myotonolytic. Prepn and antitremor activity: P. Neumann, NL 7306228; eidem, US 3843668 (1973, 1974 both to Wander-Sandoz). Pharmacology: A. C. Sayers et al., Arzneim.-Forsch. 30, 793 (1980); and mechanism of action studies: L. Turski et al., Brain Res. 379, 367 (1986); H. Ono et al., Gen. Pharmacol. 17, 137 (1986). Pharmacokinetics: V. Heazlewood et al., Eur. J. Clin. Pharmacol. 25, 65 (1983). Clinical evaluation in spasticity of multiple sclerosis: P. M. Newman et al., ibid. 23, 31 (1982); M. C. Hoogstraten et al., Acta Neurol. Scand. 77, 224 (1988).
Properties: Crystals from methanol, mp 221-223°. LD50 orally in mice: 235 mg/kg (Sayers).
Melting point: mp 221-223°
Toxicity data: LD50 orally in mice: 235 mg/kg (Sayers)
Derivative Type: Hydrochloride
CAS Registry Number: 64461-82-1
Manufacturers' Codes: AB-021; DS-103-282
Trademarks: Sirdalud (Novartis); Ternelin (Novartis); Zanaflex (Athena)
Molecular Formula: C9H8ClN5S.HCl
Molecular Weight: 290.17
Percent Composition: C 37.25%, H 3.13%, Cl 24.44%, N 24.14%, S 11.05%
Therap-Cat: Muscle relaxant (skeletal).
Keywords: Muscle Relaxant (Skeletal).

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