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CAS 79307-93-0

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Azelastine hydrochloride

Description:
Azelastine hydrochloride is a potent antihistamine primarily used in the treatment of allergic rhinitis and conjunctivitis. It is classified as a selective H1 receptor antagonist, which helps alleviate symptoms such as sneezing, itching, and nasal congestion by blocking the action of histamine, a key mediator in allergic responses. The substance appears as a white to off-white crystalline powder and is soluble in water, making it suitable for various pharmaceutical formulations, including nasal sprays and eye drops. Azelastine hydrochloride exhibits a relatively rapid onset of action, providing relief from allergy symptoms within minutes. Additionally, it has a longer duration of action compared to many other antihistamines, allowing for less frequent dosing. The compound is generally well-tolerated, though some users may experience side effects such as drowsiness or local irritation at the site of application. Its pharmacokinetics indicate that it undergoes extensive metabolism, primarily in the liver, and is excreted mainly through urine. Overall, azelastine hydrochloride is an effective option for managing allergic conditions.
Formula:C22H25Cl2N3O
InChI:InChI=1/C22H24ClN3O.ClH/c1-25-13-4-5-18(12-14-25)26-22(27)20-7-3-2-6-19(20)21(24-26)15-16-8-10-17(23)11-9-16;/h2-3,6-11,18H,4-5,12-15H2,1H3;1H/t18-;/m1./s1
InChI key:InChIKey=YEJAJYAHJQIWNU-UHFFFAOYSA-N
SMILES:C(C=1C=2C(C(=O)N(N1)C3CCCN(C)CC3)=CC=CC2)C4=CC=C(Cl)C=C4.Cl
Synonyms:
  • 1(2H)-Phthalazinone, 4-[(4-chlorophenyl)methyl]-2-(hexahydro-1-methyl-1H-azepin-4-yl)-, hydrochloride (1:1)
  • 1(2H)-Phthalazinone, 4-[(4-chlorophenyl)methyl]-2-(hexahydro-1-methyl-1H-azepin-4-yl)-, monohydrochloride
  • 1(2H)-Phthalazinone, 4-[(4-chlorophenyl)methyl]-2-(hexahydro-1-methyl-1H-azepin-4-yl)-, monohydrochloride, (S)-
  • 4-(4-chlorobenzyl)-2-(1-methylazepan-4-yl)phthalazin-1(2H)-one hydrochloride (1:1)
  • A 5610
  • Allergodil
  • Astelin
  • Astepro
  • Azelast
  • Azeptin
  • See more synonyms
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Found 18 products.