3-(3,4-Dimethoxyphenyl)-6-(pyrrolidin-1-yl)-[1,2,4]triazolo[3,4-a]phthalazine CAS 87540-09-8
| CAS No. | 87540-09-8 |
| Molecular Formula | C21H21N5O2 |
| Molecular Weight | 375.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 3-(3,4-Dimethoxyphenyl)-6-(pyrrolidin-1-yl)-[1,2,4]triazolo[3,4-a]phthalazine (CAS 87540-09-8), a certified reference material (molecular formula C21H21N5O2, MW 375.42 g/mol) for analytical method development and quality control.
3-(3,4-Dimethoxyphenyl)-6-(pyrrolidin-1-yl)-[1,2,4]triazolo[3,4-a]phthalazine (C21H21N5O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C21H21N5O2 |
| Molecular Weight | 375.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 5 |
Related Dimethoxyphenyl Standards
- 4-[(1E)-[(3,4-Dimethoxyphenyl)imino]methyl]phenyl 4-methylbenzoate (CAS 331460-64-1)
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- 3-[7-(2,4-Dimethoxyphenyl)-2,3,6,7-tetrahydro-1,4-thiazepin-5-yl]-4-hydroxy-6-methyl-2H-pyran-2-one (CAS 257292-29-8)
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Recommended Standards
- 3-(2-(Phenylsulfonamido)phenoxy)thiophene-2-carboxylic acid (CAS 900019-13-8)
- 3-(4-(Phenylsulfonamido)phenoxy)thiophene-2-carboxylic acid (CAS 882747-61-7)
- 2-Phenyl-2-[(phenylcarbamoyl)amino]ethyl N-phenylcarbamate (CAS 338963-03-4)
- 4,5-Dimethoxy-15-phenyl-10,14,15-triazatetracyclo[8.7.0.0^{2,7}.0^{12,16}]heptadeca-2(7),3,5,12(16),13-pentaen-11-one (CAS 685107-26-0)
- S-4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl ethanethioate (CAS 2484920-02-5)
- O-(3,4-dichlorobenzyl)hydroxylamine hydrochloride (CAS 15256-10-7)
- 6-Bromo-N-(4-methoxyphenyl)-2,3,4,9-tetrahydro-1H-carbazol-1-amine (CAS 812649-20-0)
- Pelubiprofen (CAS 69956-77-0)
- 3,5-Di(1-pyrenyl)pyridine (CAS 1246467-58-2)
- 951888-07-6 Ethyl 7-(2,3,4-trimethoxyphenyl)-7-oxoheptanoate MFCD09801967 (CAS 951888-07-6)
- 2-Propyl-2-heptenal (CAS 34880-43-8)
- 2-Thia-6-azaspiro[3.5]Nonane 2,2-dioxide hydrochloride (CAS 2200861-77-2)
- Iohexol impurity 34 (CAS CATO-C4X-166434)
- Vialox Peptide(Pentapeptide-3) diacetate (CAS 725232-44-0)
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