Skip to Content
Merck
All Photos(1)

Documents

1370270

USP

Loratadine

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

4-(8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene-1-piperidinecarboxylic acid ethyl ester, Loratidine

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C22H23N2O2Cl
CAS Number:
79794-75-5
Molecular Weight:
382.88
MDL number:
MFCD00672869
UNSPSC Code:
41116107
PubChem Substance ID:
329750256
NACRES:
NA.24

grade

pharmaceutical primary standard

API family

loratadine

manufacturer/tradename

USP

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

CCOC(=O)N1CC\C(CC1)=C2/c3ccc(Cl)cc3CCc4cccnc24

InChI

1S/C22H23ClN2O2/c1-2-27-22(26)25-12-9-15(10-13-25)20-19-8-7-18(23)14-17(19)6-5-16-4-3-11-24-21(16)20/h3-4,7-8,11,14H,2,5-6,9-10,12-13H2,1H3

InChI key

JCCNYMKQOSZNPW-UHFFFAOYSA-N

Gene Information

human ... HRH1(3269)

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Loratadine USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:
  • Loratadine Capsules
  • Loratadine Chewable Tablets
  • Loratadine Oral Solution
  • Loratadine Orally Disintegrating Tablets
  • Loratadine Tablets

Biochem/physiol Actions

Non-sedating histamine H1-receptor antagonist.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

related product

Product No.
Description
Pricing

1370280

Loratadine Related Compound A, United States Pharmacopeia (USP) Reference Standard

1370291

Loratadine Related Compound B, United States Pharmacopeia (USP) Reference Standard

Y0000603

Loratadine for system suitability, European Pharmacopoeia (EP) Reference Standard

Y0000688

Loratadine, European Pharmacopoeia (EP) Reference Standard

Y0000604

Loratadine impurity F, European Pharmacopoeia (EP) Reference Standard

Y0000605

Loratadine impurity H, European Pharmacopoeia (EP) Reference Standard

1370269

Loratadine Related Compound C, United States Pharmacopeia (USP) Reference Standard

BP874

Loratadine, British Pharmacopoeia (BP) Reference Standard

BP875

Loratadine impurity standard, British Pharmacopoeia (BP) Reference Standard

PHR2308

Loratadine Related Compound B

PHR2309

Loratadine Related Compound C, Pharmaceutical Secondary Standard; Certified Reference Standard

PHR2313

Loratadine Impurity H, Pharmaceutical Secondary Standard; Certified Reference Material

PHR2310

Loratadine Impurity A, certified reference material, pharmaceutical secondary standard

PHR2311

Loratadine Impurity E, Pharmaceutical Secondary Standard; Certified Reference Material

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

S P Clissold et al.
Drugs, 37(1), 42-57 (1989-01-01)
Loratadine is a long acting antihistamine which has a high selectivity for peripheral histamine H1-receptors and lacks the central nervous system depressant effects often associated with some of the older antihistamines. Results from controlled clinical trials have shown that loratadine
Safety and efficacy of loratadine in urticaria.
E W Monroe
International journal of dermatology, 35(12), 837-841 (1996-12-01)
G G Kay et al.
Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology, 29 Suppl 3, 147-150 (1999-08-12)
Although equally potent at blocking the H1 receptor, first- and second-generation antihistamines can be distinguished with respect to their different effects on the central nervous system (CNS). First-generation antihistamines readily cross the blood-brain barrier leading to significant drowsiness, altered mood
I J Roman et al.
Clinical reviews in allergy, 11(1), 89-110 (1993-01-01)
Antihistamines are considered first-line therapy for the relief of symptoms from allergic rhinitis and chronic urticaria. The newer, second-generation, nonsedating antihistamines reduce the central nervous system and anticholinergic side effects commonly found with previous drugs. The availability of H1-receptor antagonists
M Haria et al.
Drugs, 48(4), 617-637 (1994-10-01)
Loratadine is a long-acting antihistamine agent, exhibiting partial selectivity for peripheral histamine H1-receptors. To date, loratadine has been evaluated in allergic rhinitis, urticaria and, to a limited extent, in asthma. In several large controlled comparative clinical studies, loratadine was superior
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service