α-Hydroxy Olopatadine Hydrochloride
- CAS1331668-21-3
- CatalogueRS-O023016
- FormulaC21H23NO4.HCl
- MW389.88
On this page
Product identification
| Product name | α-Hydroxy Olopatadine Hydrochloride |
|---|---|
| Catalogue No. | RS-O023016 |
| CAS No. | 1331668-21-3 |
| Alternate CAS No. | 1032086-61-5 (free base) |
| Molecular formula | C21H23NO4.HCl |
| Molecular weight | 389.88 |
| Availability | In stock— dispatched in about 1–2 weeks |
| Standard type | Pharmaceutical Intermediates |
| Drug substance | Olopatadine |
| Also known as | Alpha-Hydroxy Olopatadine Hydrochloride; Olopatadine Related Compound A (HCl Salt); Olopatadine Hydrochloride Impurity 45 |
| Storage | 2-8°C Refrigerator |
| Intended use | For laboratory and research use only. Not for human or veterinary use. |
What is stated on the certificate
Content and purity are assigned per lot and stated on the certificate of analysis issued for the batch you receive — they are not a catalogue-level figure. The certificate records the tests performed, the specification applied and the result obtained for that lot.
| Field | Basis |
|---|---|
| Identity | Spectroscopic and chromatographic methods appropriate to the material |
| Purity | Chromatographic purity, area normalisation unless stated otherwise |
| Assay / content | Mass balance, corrected for the stated volatiles and residue |
| Catalogue and batch numbers | RS-O023016 / batch number on the certificate |
| Retest date | Printed on the certificate for the lot supplied |
Frequently asked
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Is the assigned value given on an “as is” basis?
How should this material be stored?
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Finding this standard
Buyers reach this compound by CAS number, by catalogue number, through the drug substance it belongs to, or through the type of standard it is. Those routes all start here:
- Other impurities of Olopatadine
- Pharmaceutical Intermediates of this kind
- Documents for this item (COA, SDS)
- Certificate of analysis for RS-O023016
- Request a quotation for RS-O023016
Searching another way? Send the structure, a SMILES string or the pharmacopoeial name — a CAS number is not required for a non-compendial impurity. Write to sales@rssechem.com.
Other standards of Olopatadine
All 33 further standards are listed here — every link is in the page, not loaded later.
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Olopatadine
IN STOCKRS-I058029 -
(3-Hydroxypropyl)triphenylphosphonium bromide
CUSTOM SYNTHESISRS-Z408K7F -
(E/Z)-Olopatadine Carbaldehyde hydrochloride
IN STOCKRS-O023009 -
(Z)-Olopatadine N-Oxide
IN STOCKRS-O023007 -
2-[(4-Methylphenoxy)methyl]benzoic acid
IN STOCKRS-O023028 -
Isopropyl 2-(11-oxo-6,11-dihydrodibenzo[b,e]oxepin-2-yl)acetate
CUSTOM SYNTHESISRS-O023021 -
N-Desmethyl olopatadine
IN STOCKRS-O023002 -
N-Desmethyl Olopatadine Methyl Ester Trifluoroacetic Acid Salt
BACK ORDERRS-O023027 -
Olopatadine D6-AR Grade
IN STOCKRS-O023013 -
Olopatadine Isopropyl Ester
IN STOCKRS-O023003 -
Olopatadine methanol
IN STOCKRS-O023026 -
Olopatadine N-Oxide
IN STOCKRS-U086118 -
Olopatadine-d3 HCl
IN STOCKRS-U096197 -
Olopatadine USP Related Compound A
IN STOCKRS-O023017 -
Olopatadine Impurity 2
IN STOCKRS-O023006 -
Olopatadine Impurity 9
IN STOCKRS-O023001 -
Olopatadine Impurity 10
IN STOCKRS-O023010 -
Olopatadine Impurity 13
IN STOCKRS-O023004 -
Olopatadine Impurity 15
IN STOCKRS-O023012 -
Olopatadine Impurity 16
IN STOCKRS-I001AVV -
Olopatadine Impurity 17
IN STOCKRS-O023018 -
Olopatadine Impurity 17(Hydrobromide)
IN STOCKRS-O023019 -
Olopatadine Impurity 18
IN STOCKRS-O023015 -
Olopatadine Impurity 18(Hydrochloride)
IN STOCKRS-O023014 -
Olopatadine Impurity 19
IN STOCKRS-O023024 -
Olopatadine Impurity 24
BACK ORDERRS-Z401IAY -
Olopatadine Impurity 25
CUSTOM SYNTHESISRS-O023022 -
Olopatadine Impurity 40
CUSTOM SYNTHESISRS-O023030 -
Olopatadine Impurity 48
IN STOCKRS-O023029 -
Olopatadine Impurity 67
CUSTOM SYNTHESISRS-I001637 -
Olopatadine Impurity 146
IN STOCKRS-O023005 -
Olopatadine Impurity 155
IN STOCKRS-O023020 -
Olopatadine Impurity 156
IN STOCKRS-O023023
Pharmacopoeial names (EP, USP, BP, JP) are used for identification purposes only and do not imply endorsement by those bodies. This product is supplied for laboratory and research use only — not for human or veterinary use.




![Chemical structure of 2-[(4-Methylphenoxy)methyl]benzoic acid](/structures/w4/WIXMNHDXMGVQOY-UHFFFAOYSA-N.webp?v=7)
![Chemical structure of Isopropyl 2-(11-oxo-6,11-dihydrodibenzo[b,e]oxepin-2-yl)acetate](/structures/w4/FSEZHVHHAAENBM-UHFFFAOYSA-N.webp?v=7)

























