7-Hydroxyphthalazin-1(2H)-one CAS 64223-67-2
| CAS No. | 64223-67-2 |
| Molecular Formula | C8H6N2O2 |
| Molecular Weight | 162.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H6N2O2, 7-Hydroxyphthalazin-1(2H)-one contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 162.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
7-Hydroxyphthalazin-1(2H)-one (CAS 64223-67-2) is a high-purity analytical reference standard with the molecular formula C8H6N2O2 and a molecular weight of 162.15 g/mol.
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), 7-Hydroxyphthalazin-1(2H)-one 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 | C8H6N2O2 |
| Molecular Weight | 162.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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.) | 1975 |
| Nitrogen Atoms | 2 |
Related Hydroxyphthalazin Standards
Recommended Standards
- 7H-Pyrrolo[2,3-d]pyrimidin-5-carboxamide; 1H-Pyrrolo[2,3-d]pyrimidin-5-carboxamide (CAS 454685-89-3)
- 7-Nitro-1H-indole (CAS 6960-42-5)
- 7-Azaindole-6-carboxylic Acid (CAS 898746-35-5)
- Benzo[d]isoxazole-3-carboxamide (CAS 52046-80-7)
- 7-Nitro-2,3-dihydro-1,4-benzodioxine-6-sulfonyl chloride (CAS 5279-54-9)
- Ethyl 2-bromobenzenesulfonate (CAS 99769-29-6)
- 3-Cyclohexyl-5-((3-(4-isobutoxy-3-methylphenyl)-1-phenyl-1H-pyrazol-4-yl)methylene)-2-thioxothiazolidin-4-one (CAS 623934-92-9)
- (1-(4,6-Dimethylpyrimidin-2-yl)-1H-1,2,3-triazol-4-yl)(pyridin-2-yl)methanone (CAS 923106-19-8)
- 2-((Isoxazol-3-ylmethyl)thio)ethanamine (CAS 59660-29-6)
- 2-(3-Butoxyphenyl)-4-methylpyrrolidine (CAS 603089-76-5)
- N-(2-(2-Oxo-2-(propylamino)ethyl)-2,6-dihydro-4H-thieno[3,4-c]pyrazol-3-yl)thiophene-2-carboxamide (CAS 1105246-65-8)
- 5-Amino-2,2-dimethyl-2,3-dihydro-1H-inden-1-one (CAS 1066569-46-7)
- 1-Phenyl-3-p-tolyl-1H-pyrazole-4-carboxylic acid (CAS 380910-52-1)
- D-allo-Thr7-Semaglutide (CAS CATO-C4X-2226242)
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