Molecular Structure of Terbutaline (CAS NO.23031-25-6): 


IUPAC Name: 5-[2-(tert-butylamino)-1-hydroxyethyl]benzene-1,3-diol
CAS: 23031-25-6
Molecular Formula: C₁₂H₁₉NO₃
Molecular Weight: 225.28
EINECS: 245-385-8
H bond acceptors: 4
H bond donors: 4
Freely Rotating Bonds: 7
Polar Surface Area: 30.93 Å²
 Molar Refractivity: 63.19 cm³
Molar Volume: 192.2 cm³
Surface Tension: 50 dyne/cm 
Density: 1.171 g/cm³ 
Flash Point: 165.3 °C 
Enthalpy of Vaporization: 70.94 kJ/mol 
Boiling Point: 419.2 °C at 760 mmHg 
Vapour Pressure: 8.92E-08 mmHg at 25°C
InChI
InChI=1/C12H19NO3/c1-12(2,3)13-7-11(16)8-4-9(14)6-10(15)5-8/h4-6,11,13-16H,7H2,1-3H3
Smiles
C(NC[C@@H](c1cc(cc(c1)O)O)O)(C)(C)C
Classification Code: Adrenergic Agents; Adrenergic Agonists; Adrenergic beta-agonists; Anti-Asthmatic Agents; Autonomic Agents; Bronchodilator agents; Drug / Therapeutic Agent; Human Data; Neurotransmitter Agents; Peripheral Nervous System Agents; Reproductive Control Agents; Reproductive Effect; Respiratory System Agents; Sympathomimetics; Tocolytic agents

Terbutaline (CAS NO.23031-25-6) is used as a treatment for premature labour is an off-label use not approved by the FAD. It is apregnancy category 'B' medication and is routinely prescribed to stop contractions. Terbutaline (CAS NO.23031-25-6) is currently on the World Anti-Doping Agency's list of prohibited drugs for Olympic athletes, except when administered by inhalation and a Therapeutic Use Exemption (TUE) has been obtained in advance.Orally disintegrating tablets by sublimation technique of Terbutaline sulphate have been developed.

 Terbutaline (CAS NO.23031-25-6) (trade names Brethine, Bricanyl, or Brethaire) is a β2-adrenergic receptor agonist, used as a fast-acting bronchodilator (often used as a short-term asthma treatment) and as a tocolytic to delay premature labour. The inhaled form of terbutaline starts working within 15 minutes and can last up to 6 hours .

 Terbutaline , with CAS number of 23031-25-6, can be called 5-(1-Hydroxy-2-tert-butylamino-ethyl)benzene-1,3-diol ; Terbutaline;(R)-α-[(tert-Butylamino)methyl]-3,5-dihydroxybenzyl alcohol ; (S)-α-[(tert-Butylamino)methyl]-3,5-dihydroxybenzyl alcohol ; 5-[(S)-1-Hydroxy-2-(tert-butylamino)ethyl]benzene-1,3-diol ; rac-5-[(R*)-2-[(1,1-Dimethylethyl)amino]-1-hydroxyethyl]-1,3-benzenediol .