3-(2-(4-(2-Methoxyphenyl)piperazin-1-yl)ethyl)-1H-pyrimido[5,4-b]indole-2,4(3H,5H)-dione CAS 133399-65-2
| CAS No. | 133399-65-2 |
| Molecular Formula | C23H25N5O3 |
| Molecular Weight | 419.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-(2-(4-(2-Methoxyphenyl)piperazin-1-yl)ethyl)-1H-pyrimido[5,4-b]indole-2,4(3H,5H)-dione (CAS 133399-65-2), a certified reference material (molecular formula C23H25N5O3, MW 419.48 g/mol) for analytical method development and quality control.
3-(2-(4-(2-Methoxyphenyl)piperazin-1-yl)ethyl)-1H-pyrimido[5,4-b]indole-2,4(3H,5H)-dione (C23H25N5O3) 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C23H25N5O3 |
| Molecular Weight | 419.48 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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.) | 1995 |
| Nitrogen Atoms | 5 |
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Recommended Standards
- NH-bis(PEG3-azide) (CAS 1258939-39-7)
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- tert-Butyl 18-bromooctadecanoate (CAS 1199580-32-9)
- 4-(((Furan-2-ylmethyl)thio)methyl)-1-((3-(trifluoromethyl)phenyl)sulfonyl)piperidine (CAS 1396857-76-3)
- {[4-(Benzyloxy)phenyl]methyl}(2-methylpropyl)amine hydrochloride (CAS 1158792-89-2)
- ethyl 7-(3-aminophenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate,HCl (CAS 1185449-65-3)
- 5-Thiazolemethanamine, 2-(3-methoxyphenyl)- (CAS 915923-85-2)
- (4-(4-Fluorophenyl)-1,1-dioxido-4H-benzo[b][1,4]thiazin-2-yl)(piperidin-1-yl)methanone (CAS 1251580-54-7)
- 2-(2,5-Dichlorophenyl)-2,2-difluoroacetic acid (CAS 1248366-67-7)
- 2-(4-Methoxyphenyl)-tetrahydrofuran 79623-15-7 C11H14O2 Y4111 (CAS 79623-15-7)
- 3-(2,3,5-Trimethylphenoxy)propanenitrile (CAS 3649-04-5)
- N-((1-aminocyclohexyl)methyl)-2,5-dichlorothiophene-3-sulfonamide (CAS 1153056-30-4)
- 5-(Aminocarbonyl)-2-methoxyphenylboronic acid (CAS 1127647-65-7)
- Des-Ile17-Tirzepatide (CAS CATO-CPTD788956)
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