1-(4-Chlorophenyl)-5-phenyl-1H-imidazole-2-thiol CAS 136802-78-3
| CAS No. | 136802-78-3 |
| Molecular Formula | C15H11ClN2S |
| Molecular Weight | 286.78 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-(4-Chlorophenyl)-5-phenyl-1H-imidazole-2-thiol (C15H11ClN2S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 286.78 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 1-(4-Chlorophenyl)-5-phenyl-1H-imidazole-2-thiol (CAS 136802-78-3), a certified reference material (molecular formula C15H11ClN2S, MW 286.78 g/mol) for analytical method development and quality control.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C15H11ClN2S |
| Molecular Weight | 286.78 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
- 3-(2-(4-Chlorophenyl)thiazol-4-yl)aniline (CAS 1017219-30-5)
- 2-(2-(4-Chlorophenyl)thiazol-4-yl)aniline (CAS 1204296-82-1)
- 1-(2-Chlorophenyl)-5-phenyl-1h-imidazole-2-thiol (CAS 852400-29-4)
- 1-(3-Chlorophenyl)-5-phenyl-1H-imidazole-2-thiol (CAS 30192-78-0)
- 2-(2-Chlorophenyl)-5-(o-tolyl)-1,3,4-thiadiazole (CAS 65349-15-7)
- 2-{[(2-chlorophenyl)methyl]sulfanyl}quinoxaline (CAS 338977-83-6)
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Recommended Standards
- 1-(4-Chloro-5-(naphthalen-2-yl)thiophen-2-yl)ethan-1-one (CAS 1309597-90-7)
- 2-Chloro-1-(4-(2-(thiophen-3-yl)acetyl)piperazin-1-yl)ethanone (CAS 1417793-93-1)
- N,N-Diallyl-3-amino-4-chlorobenzenesulfonamide (CAS 1219957-24-0)
- 2-(2-Chloropyridin-3-yl)-4-(p-tolyl)thiazole (CAS 1431729-09-7)
- 4-Chloro-2-fluoro-N-methylaniline (CAS 894099-96-8)
- 1-(2-Ethynylphenyl)ethan-1-amine (CAS 1851168-26-7)
- 1-(3-Chlorophenyl)ethyl isocyanide (CAS 1041635-04-4)
- 1,2,4,5-Tetramethyl-3-nitrobenzene (CAS 3463-36-3)
- 1-(Furan-2-carbonyl)-N-methylpiperidine-4-carboxamide (CAS 897743-78-1)
- 4-(4-Bromophenyl)-3-(methylsulfonyl)-1H-pyrazole (CAS 1708037-09-5)
- (S)-1-(2,4-Dimethoxyphenyl)ethan-1-amine hydrochloride (CAS 1929526-23-7)
- (2-((2-Aminobenzyl)amino)phenyl)methanol (CAS 83326-78-7)
- 2-(CYclopentylcarbonyl)octahydro-2,7-naphthyridin-4a(2h)-ol hydrochloride (CAS 2108982-15-4)
- Tirzepatide Impurity 13 (CAS CATO-C4X-324013)
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