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Tulobuterol

Cat. No. M13900
Tulobuterol Structure
Synonym:

C-78 free base

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Biological Activity

Tulobuterol (C-78 free base) is a long-acting β2-adrenoceptor agonist, which reduces the frequency of exacerbations of chronic obstructive pulmonary disease and bronchial asthma. Tulobuterol is also a sympathomimetic agent used as a transdermal patch, and increases normal diaphragm muscle strength.

Chemical Information
Molecular Weight 227.73
CAS Number 41570-61-0
Solubility (25°C) DMSO 90 mg/mL
Storage 2-8°C, protect from light
Conversion of different model animals based on BSA (PMID: 27057123)
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.

References

[1] Ayumi Iwanami, et al. [Effect of Storage of Tulobuterol Tapes after Package Opening and Liner Peeling on Their Formulation Properties]

[2] Shujuan Luo, et al. Sustained release of tulobuterol from graphene oxide laden hydrogel to manage asthma

[3] Lixia Fu, et al. Tulobuterol patch alleviates allergic asthmic inflammation by blockade of Syk and NF-κB activation in mice

[4] Yuichi Takizawa, et al. Skin permeability of tulobuterol in two transdermal formulations and their followability

[5] Gen Tamura, et al. Transdermal tulobuterol patch, a long-actingβ(2)-agonist

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