4-(Chlorobenzyl)-2-(1-methylazepan-4-yl)phthalazin-1(2H)-one
- CAS1228258-93-2
- CatalogueRS-D110027
- FormulaC22H24ClN3O
- MW381.9
On this page
Product identification
| Product name | 4-(Chlorobenzyl)-2-(1-methylazepan-4-yl)phthalazin-1(2H)-one |
|---|---|
| Catalogue No. | RS-D110027 |
| CAS No. | 1228258-93-2 |
| Molecular formula | C22H24ClN3O |
| Molecular weight | 381.9 |
| Availability | In stock— dispatched in about 1–2 weeks |
| Standard type | Drug Metabolite Standards |
| Drug substance | Azelastine |
| Also known as | Azelastine D4 |
| 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-D110027 / batch number on the certificate |
| Retest date | Printed on the certificate for the lot supplied |
Frequently asked
What documentation is supplied with this lot?
Is the assigned value given on an “as is” basis?
How should this material be stored?
Do you supply pack sizes other than those listed?
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 Azelastine
- Drug Metabolite Standards of this kind
- Documents for this item (COA, SDS)
- Certificate of analysis for RS-D110027
- Request a quotation for RS-D110027
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 Azelastine
All 48 further standards are listed here — every link is in the page, not loaded later.
-
Azelastine
IN STOCKRS-U104055 -
Azelastine EP Impurity C
IN STOCKRS-A122003 -
Azelastine EP Impurity D (Azelastine USP Related Compound D)
IN STOCKRS-A122004 -
Azelastine EP Impurity E
IN STOCKRS-A038001 -
(E)-3-(4-chlorobenzylidene)isobenzofuran-1(3H)-one
IN STOCKRS-Z412TVE -
(R)-Azelastine N-Oxide (Mixture of Diastereomers)
IN STOCKRS-U019076 -
(S)-Azelastine N-Oxide (Mixture of Diastereomers)
IN STOCKRS-U009087 -
(Z)-1-methyl-5-((1-methylazepan-4-ylidene)methyl)azepan-4-one
IN STOCKRS-A038036 -
1(3H)-Isobenzofuranone, 3-[(3-chlorophenyl)methylene]-, (E)-(9CI)
IN STOCKRS-A038019 -
1-Methylazepan-4-one hydrochloride
IN STOCKRS-P011053 -
4'-hydroxy-1,1'-dimethyl-[4,4'-biazepan]-5-one
CUSTOM SYNTHESISRS-A038032 -
4-Hydrazinyl-1-methylazepane
IN STOCKRS-Z394AMQ -
4-Phenylphthalazin-1(2H)-one
BACK ORDERRS-U052767 -
Azelastine 2-Chloro Isomer
IN STOCKRS-A038014 -
Azelastine 5-Member-Cyclic-Isomer Hydrochloride
BACK ORDERRS-U006135 -
Azelastine Impurity N10
IN STOCKRS-Z401DY2 -
Azelastine N-Oxide (Mixture of Diastereomers)
IN STOCKRS-A038006 -
Azelastine-13C,d3
IN STOCKRS-A038008 -
Azelastine-13C,d3 N-Oxide (Mixture of Diastereomers)
BACK ORDERRS-A038009 -
Azelastine-d3
IN STOCKRS-A038015 -
Azelastine-D4 Hydrochloride
IN STOCKRS-I100135 -
Diethyl 3,3'-(methylazaneDiyl)Dipropanoate
CUSTOM SYNTHESISRS-U077840 -
N'-(1-Methylazepan-4-yl)benzohydrazine-d5
IN STOCKRS-I091211 -
N-(4-Aminobutyl)-N-ethylisoluminol
IN STOCKRS-U057906 -
N-Methyl-4-aminobutyric Acid
IN STOCKRS-U054033 -
N`-(1-Methylazepan-4-yl)benzohydrazide Dihydrochloride
IN STOCKRS-Z401GSX -
N’-(1-Methylazepan-4-yl)benzohydrazine Monohydrochloride Salt
IN STOCKRS-A038003 -
Azelastine Impurity 6
IN STOCKRS-A038004 -
Azelastine Impurity 9(Hydrochloride)
CUSTOM SYNTHESISRS-A038007 -
Azelastine Impurity 10(Hydrochloride)
IN STOCKRS-A038005 -
Azelastine Impurity 11(Hydrochloride)
IN STOCKRS-A038012 -
Azelastine Impurity 13
IN STOCKRS-A038011 -
Azelastine Impurity 15
IN STOCKRS-A038002 -
Azelastine Impurity 16
CUSTOM SYNTHESISRS-Z401KCI -
Azelastine Impurity 17
IN STOCKRS-A038016 -
Azelastine Impurity 19
CUSTOM SYNTHESISRS-Z401J0W -
Azelastine Impurity 36
IN STOCKRS-A038018 -
Azelastine Impurity 37
BACK ORDERRS-Z400SWQ -
Azelastine Impurity 42
IN STOCKRS-A038017 -
Azelastine Impurity 50
BACK ORDERRS-I001AOJ -
Azelastine Impurity 51
IN STOCKRS-I001B39 -
Azelastine impurity 63
BACK ORDERRS-I001A2G -
Azelastine Impurity 64
IN STOCKRS-A038010 -
Azelastine Impurity 65
CUSTOM SYNTHESISRS-A038013 -
Azelastine Impurity 76
BACK ORDERRS-I001AMR -
Azelastine Impurity 77
BACK ORDERRS-I001AY2 -
Azelastine Impurity 78
IN STOCKRS-I001BDO
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 1(3H)-Isobenzofuranone, 3-[(3-chlorophenyl)methylene]-, (E)-(9CI)](/structures/w4/TWFDIKOXKSCOGG-NTEUORMPSA-N.webp?v=8)

![Chemical structure of 4'-hydroxy-1,1'-dimethyl-[4,4'-biazepan]-5-one](/structures/w4/HOWCMOFTFQSQDB-UHFFFAOYSA-N.webp?v=8)

































