Pharmacopoeial impurityOlopatadine USP Related Compound BCat. No. P-O018-002CAS 173174-07-7
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Active ingredient · Olopatadine family
Pharmaceutical analytical standardOlopatadine Hydrochloride
Synonyms: Pataday, Allelock, Patanase, Pazeo, Retaine Allergy, Once Daily Relief, Eye Allergy Itch Relief, Dibenz(b,e)oxepin-2-acetic acid, 11-(3-(dimethylamino)propylidene)-6,11-dihydro-, hydrochloride, (Z)-, CVS Eye Allergy Itch Relief, Pataday once daily relief, Pataday twice daily relief, Pataday twice a day relief, CVS Eye Allergy Itch Relief Once Daily, CVS Eye Allergy Itch Relief Twice Daily, Eye Allergy Itch Relief Once Daily Relief, Patanol, Olopine, Patadine, Olopax, Opatanol, O-PPDS
- Cat. No.
- P-O018-001
- CAS
- 140462-76-6
- Alternative CAS
- 113806-05-6 (free base)
- 113805-63-3 (other form)
- Formula
- C21H23NO3·HCl
- Molecular weight
- 373.88 g/mol
- Category
- Active ingredient (API)
An H1 antihistamine that also stabilises mast cells, born in Japan and patented in 1986, in use since the late 1990s against eye and nose allergies, above all as eye drops.
Did you know?The same active ingredient comes in three very different forms: eye drops for allergic conjunctivitis, a nasal spray for rhinitis and, in Japan, tablets taken by mouth.
The two levels compared
| Level 1 Mass balance | Level 2 Mass balance + qNMR | |
|---|---|---|
| Identity (IR, MS, 1H and 13C-NMR; peptides: ESI-MS, MALDI-TOF and IR) | ✓ | ✓ |
| HPLC purity (min. 95%) | ✓ | ✓ |
| Content by mass balance (min. 90%; peptides: for information only)* | ✓ | ✓ |
| Content verified by qNMR (small molecules only) | · | ✓ |
| Suitable to qualify it as an in-house primary standard (ICH Q7) | · | ✓ |
* Mass balance is performed on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it, for example oils and highly volatile substances, on which some of the required measurements cannot be made: in those cases the CoA states how the content was assigned.
What you receive
The analytical standard
Shipped under controlled temperature when the molecule requires it.
Certificate of analysis (CoA)
For every lot: identity, purity and assay, with the supporting spectra and chromatograms.
Safety data sheet (SDS)
Sent with every order.
Tracked shipment
Follow your shipment live, from our warehouse to your lab.
More products in the Olopatadine family
Pharmacopoeial impurityOlopatadine USP Related Compound BCat. No. P-O018-002CAS 173174-07-7
Isotopically labelledOlopatadine-d3 HClCat. No. P-O018-005
Isotopically labelledOlopatadine-d3 N-OxideCat. No. P-O018-006CAS 1246832-94-9
NitrosamineN-Nitroso-N-Desmethyl OlopatadineCat. No. P-O018-007
Impurity(E)-OlopatadineCat. No. P-O018-008CAS 113806-06-7
Impurity(E)-Olopatadine HydrochlorideCat. No. P-O018-009CAS 949141-22-4
Impurity(E)-Olopatadine Isopropyl Ester HClCat. No. P-O018-010
ImpurityOlopatadine Impurity 1Cat. No. P-O018-011CAS 66801-40-9Frequently asked questions
Is mass balance always performed?
Yes, on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it: for example oils and highly volatile substances, on which some measurements (such as thermogravimetry) cannot be made. In those cases the CoA states which method was used to assign the content.
Can I ask for a different quantity?
Yes. The quantities are only suggestions: choose "Other" and enter the milligrams or grams you need.
Which level should I choose?
Level 1 is enough for most routine testing. Level 2 adds an independent qNMR content value and is meant for labs that need to qualify an in-house primary standard. For peptides and similar molecules, Level 2 is not available.
When will I get the quote?
Within 24 working hours, with price, availability and delivery time.
Need a molecule you cannot find?
Custom synthesis of impurities, metabolites and labelled compounds, with the same characterisation level.