4-(3-Oxopiperazin-1-yl)benzaldehyde CAS 1021240-40-3
| CAS No. | 1021240-40-3 |
| Molecular Formula | C11H12N2O2 |
| Molecular Weight | 204.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(3-Oxopiperazin-1-yl)benzaldehyde (CAS 1021240-40-3), molecular formula C11H12N2O2 and molecular weight 204.23 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-(3-Oxopiperazin-1-yl)benzaldehyde (C11H12N2O2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-(3-Oxopiperazin-1-yl)benzaldehyde meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H12N2O2 |
| Molecular Weight | 204.23 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 2 |
Related Oxopiperazin Standards
- 2-(3-Oxopiperazin-1-yl)benzaldehyde (CAS 1021240-43-6)
- 4-(3-oxopiperazin-1-yl)benzonitrile (CAS 1019601-14-9)
- 5-(4-Methyl-3-oxopiperazin-1-yl)furan-2-carbaldehyde (CAS 1339824-74-6)
- Propyl 2-(3-oxopiperazin-2-yl)acetate (CAS 90770-36-8)
- 4-Oxo-4-(3-oxopiperazin-1-yl)butanoic acid (CAS 590380-54-4)
- 2-(3-Oxopiperazin-2-yl)-N-propylacetamide (CAS 1428138-91-3)
- 5-(3-Oxopiperazin-1-yl)thiophene-2-carbaldehyde (CAS 1342664-82-7)
- 5-Oxo-5-(3-oxopiperazin-1-yl)pentanoic acid (CAS 926237-98-1)
Recommended Standards
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- Methyl (3-cyanobenzyl)glycinate (CAS 1019627-51-0)
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- (5-(2-Methoxyphenyl)isoxazol-3-yl)methanamine (CAS 1018662-34-4)
- 6-(3-Bromo-2,4,6-trimethoxyphenyl)-3-methyl-7-oxa-3-azabicyclo[4.1.0]heptane (CAS 252367-12-7)
- 6-Bromo-2-chloropyrido[3,4-d]pyrimidine (CAS 2385843-11-6)
- 3-(p-Tolyl)-1H-pyrazol-5(4H)-one (CAS 66076-78-6)
- 3-(Propylamino)propanenitrile (CAS 7249-87-8)
- N-(2-aminoethyl)-1,3-benzodioxole-5-carboxamide (CAS 94319-95-6)
- Tegoprazan Impurity 21 (CAS CATO-C4X-229721)
- cis-4-[2-(3-Iodophenyl)-2-oxoethyl]-cyclohexane-1-carboxylic acid (CAS 735275-66-8)
- 1-Benzyl-4,6-diphenylpyridin-2(1H)-one (CAS 21916-53-0)
- 4-methoxy-2-methyl-1,3-benzoxazole (CAS 849402-65-9)
- D-Ser32-Tirzepatide (CAS CATO-CPTD788677)
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