4-(Thiophen-2-yl)phthalazin-1-ol CAS 137382-45-7
| CAS No. | 137382-45-7 |
| Molecular Formula | C12H8N2OS |
| Molecular Weight | 228.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 228.27 g/mol gives 4-(Thiophen-2-yl)phthalazin-1-ol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-(Thiophen-2-yl)phthalazin-1-ol (CAS 137382-45-7), molecular formula C12H8N2OS and molecular weight 228.27 g/mol, is a CATO reference standard with documented purity and traceability.
4-(Thiophen-2-yl)phthalazin-1-ol (C12H8N2OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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-(Thiophen-2-yl)phthalazin-1-ol 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 | C12H8N2OS |
| Molecular Weight | 228.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Thiophen Standards
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Recommended Standards
- n-(4-Cyanophenyl)thiophene-2-carboxamide (CAS 137272-71-0)
- 2-(4-(1H-tetrazol-1-yl)tetrahydro-2H-thiopyran-4-yl)acetic acid (CAS 1374407-93-8)
- 1-(Pyridin-2-ylsulfonyl)pyrrolidin-3-ol (CAS 1353947-28-0)
- 3-[5-(1H-Pyrazol-5-yl)-1,3-thiazol-2-yl]pyridine (CAS 1397189-42-2)
- Bis(4-cyanato-3,5-dimethylphenyl)methane (CAS 101657-77-6)
- (1R,5S)-2-Azabicyclo[3.1.0]hexane (CAS 1000689-34-8)
- N-(1-(Thiophen-2-ylsulfonyl)-1,2,3,4-tetrahydroquinolin-7-yl)acetamide (CAS 898413-80-4)
- Ethyl 3-(2-hydroxy-4-methoxyphenyl)-3-oxopropanoate (CAS 364039-61-2)
- N-cyclopropylmorpholine-4-sulfonamide (CAS 1344321-17-0)
- Z-Glu(OBzl)-OSu (CAS 67413-34-7)
- 3-Bromo-5-cyanobenzoic Acid (CAS 453566-14-8)
- N-Octadecane (CAS 593-45-3)
- 2-(3-Chloro-5-methyl-1H-pyrazol-1-yl)acetic acid (CAS 1015782-12-3)
- Tau Peptide (245-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 1428134-39-7)
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