Cysteamine HCl, the hydrochloride form of Cysteamine, is also a transglutaminase 2 (TGM2) inhibitor, which can be used to induce gastrointestinal disorders in a mouse model as well as a duodenal ulcer model. In addition, Cysteamine HCl has the ability to modulate the activity of dopamine neurons in the striatum of awake, freely moving rats by inhibiting the increased dopamine release from amphetamine, and has antioxidant activity.
Molecular Weight | 113.61 |
Formula | C2H7NS.HCl |
CAS Number | 156-57-0 |
Solubility (25°C) | DMSO ≥ 23 mg/mL |
Storage | -20°C, protect from light, dry, sealed |
Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
Animal A Km |
For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.
[5] Martine Besouw, et al. Cysteamine: an old drug with new potential
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