1-Chloro-4-(thiophen-2-yl)phthalazine, 97% CAS 124959-34-8
| CAS No. | 124959-34-8 |
| Molecular Formula | C12H7ClN2S |
| Molecular Weight | 246.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Chloro-4-(thiophen-2-yl)phthalazine, 97% is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1-Chloro-4-(thiophen-2-yl)phthalazine, 97% (CAS 124959-34-8), molecular formula C12H7ClN2S and molecular weight 246.72 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H7ClN2S, 1-Chloro-4-(thiophen-2-yl)phthalazine, 97% contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 246.72 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).
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), 1-Chloro-4-(thiophen-2-yl)phthalazine, 97% 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 | C12H7ClN2S |
| Molecular Weight | 246.72 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1992 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-Chloro-5-phenylthieno[2,3-d]pyrimidine (CAS 1225701-41-6)
- 1-Chloro-4-(thiophen-3-yl)phthalazine, 97% (CAS 149549-07-5)
- 4-Chloro-5-phenylthieno[2,3-d]pyrimidine (CAS 182198-35-2)
- 2-((4-Chloro-6-(dimethylamino)pyrimidin-2-yl)thio)acetamide (CAS 86627-44-3)
- 2-Chloro-3-(2-thienyl)quinoxaline (CAS 71266-18-7)
- 2-Chloro-4-phenylthieno[2,3-d]pyrimidine (CAS 56844-18-9)
- 4-Chloro-2-(thiophen-3-yl)quinazoline (CAS 924068-56-4)
- 4-Chloro-2-phenylthieno[2,3-d]pyrimidine (CAS 56843-80-2)
Recommended Standards
- Ethyl Clofibrate-d4 (4-chlorophenyl-d4) (CAS 1189654-03-2)
- 4-(3-Chlorophenyl)-2-thioxo-1,2-dihydropyridine-3-carbonitrile (CAS 1707378-70-8)
- Haloperidol Impurity N16 (CAS 57390-39-3)
- Pitolisant impurity 14 (CAS CATO-C4X-252014)
- Phenyl(4-phenyl-3,6-dihydropyridin-1(2H)-yl)methanone (CAS 1257268-45-3)
- 3-(4-(Difluoromethoxy)phenyl)propanoic acid (CAS 1000932-18-2)
- 5-Ethoxy-1-(thiazol-2-yl)pentane-1,3-dione (CAS 1480962-74-0)
- 2-Ethyl-2-(((3,5,5-trimethylhexanoyl)oxy)methyl)propane-1,3-diyl bis(3,5,5-trimethylhexanoate) (CAS 65870-94-2)
- Abemaciclib Impurity 50 (CAS CATO-C4X-293750)
- 1-(4-(Trifluoromethyl)phenyl)propan-1-amine (CAS 885276-54-0)
- Mpr(Bzl) (CAS 2899-66-3)
- 5-(Bromomethyl)-2-chloro-4-methylpyridine (CAS 1496561-18-2)
- Fudosteine Impurity 42 (CAS CATO-C4X-144742)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
Why CATO?
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