4-(4-Chlorophenyl)-1,3-thiazol-2-ol CAS 2103-98-2
| CAS No. | 2103-98-2 |
| Molecular Formula | C9H6ClNOS |
| Molecular Weight | 211.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-(4-Chlorophenyl)-1,3-thiazol-2-ol (CAS 2103-98-2), molecular formula C9H6ClNOS and molecular weight 211.67 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-(4-Chlorophenyl)-1,3-thiazol-2-ol (C9H6ClNOS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 211.67 g/mol, it falls into the medium-molecular-weight range. 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).
As a certified reference material (CRM), 4-(4-Chlorophenyl)-1,3-thiazol-2-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 | C9H6ClNOS |
| Molecular Weight | 211.67 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
- 4-(3-Chlorophenyl)-2,3-dihydro-1,3-thiazol-2-one (CAS 1095051-68-5)
- 3-(3-Chlorophenyl)-1,2,4-thiadiazol-5-amine (CAS 1153977-31-1)
- 5-(3-Chlorophenyl)-4H-1,2,4-triazole-3-thiol (CAS 117320-61-3)
- 4-(2-Chlorophenyl)-1,2,3-thiadiazol-5-amine (CAS 1538121-87-7)
- 4-(3-Chlorophenyl)-1,2,3-thiadiazol-5-amine (CAS 1539779-80-0)
- 2-(4-Chlorophenyl)-4(5H)-thiazolone (CAS 1706527-37-8)
- 1-(4-Chlorophenyl)-2-thiocyanatoethan-1-one (CAS 19339-59-4)
- 1-(3-Chlorophenyl)-2-thiocyanatoethan-1-one (CAS 43045-12-1)
Recommended Standards
- 4-(4-Chlorophenyl)-1,2,3-thiadiazol-5-amine (CAS 388088-77-5)
- 4-(4-Chlorophenyl)oxazole-2-thiol (CAS 49656-28-2)
- 4-(3-Chlorothiophen-2-yl)pyrimidin-2-amine (CAS 855308-67-7)
- 4-(5-Chlorothiophen-2-yl)pyrimidin-2(1H)-imine (CAS 855308-65-5)
- 2-FLUORO-4-(TRIFLUOROMETHYL)BENZYL CHLORIDE (CAS 1000339-60-5)
- tert-Butyl 3-(2-formylhydrazine-1-carbonyl)pyrrolidine-1-carboxylate (CAS 2703864-83-7)
- 3-((2,5-Dimethylphenyl)sulfonamido)benzoic acid (CAS 727704-68-9)
- 6-(Chloromethyl)-2-n-(4-fluorophenyl)-1,3,5-triazine-2,4-diamine (CAS 105704-32-3)
- 8-Fluoro-1,2,3,4-tetrahydropyrido[3,4-b]pyrazine (CAS 1935290-09-7)
- Potassium trifluoro(3-fluoro-2-hydroxyphenyl)borate (CAS 2641216-93-3)
- N'-[(1E)-[2-(4-Phenylpiperazin-1-yl)-1,3-thiazol-5-yl]methylidene]pyridine-3-carbohydrazide (CAS 477868-61-4)
- 4,4,5,5-Tetramethyl-2-((1R,2S)-2-(4-(trifluoromethyl)phenyl)cyclopropyl)-1,3,2-dioxaborolane (CAS 2102308-70-1)
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