1. GPCR/G Protein
    Neuronal Signaling
  2. Adrenergic Receptor
  3. Ritodrine hydrochloride

Ritodrine hydrochloride (Synonyms: DU21220 hydrochloride)

Cat. No.: HY-B0452 Purity: 99.01%
Handling Instructions

Ritodrine hydrochloride (DU21220 hydrochloride) is a β-2 adrenergic receptor agonist.

For research use only. We do not sell to patients.

Ritodrine hydrochloride Chemical Structure

Ritodrine hydrochloride Chemical Structure

CAS No. : 23239-51-2

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10 mM * 1 mL in DMSO USD 79 In-stock
Estimated Time of Arrival: December 31
100 mg USD 72 In-stock
Estimated Time of Arrival: December 31
500 mg USD 216 In-stock
Estimated Time of Arrival: December 31
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Based on 1 publication(s) in Google Scholar

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Ritodrine hydrochloride (DU21220 hydrochloride) is a β-2 adrenergic receptor agonist. Target: β-2 Adrenergic Receptor Ritodrine is a tocolytic drug, used to stop premature labor. Ritodrine can significantly prolong a short interval more quickly but with relatively more side effects than magnesium sulphate. Stratified RCTs for different gestational ages and different labour stages should be designed for further study [1]. Ritodrine is a beta-2 adrenergic receptor agonist - a class of medication used for smooth muscle relaxation. Since ritodrine has a bulky N-substituent, it has high β2-selectivity. Also, the 4'-hydroxy on the benzene ring is important for activity as it is needed to form hydrogen bonds. However, the 4'-hydroxy makes it susceptible to metabolism by COMT. Since it is β2-selective it is used for premature labor [2].

Clinical Trial
Molecular Weight







OC1=CC=C(CCN[[email protected]](C)[[email protected]@H](O)C2=CC=C(O)C=C2)C=C1.Cl


Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
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RitodrineDU21220DU 21220DU-21220Adrenergic ReceptorBeta ReceptorInhibitorinhibitorinhibit

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