2-(3-Chloroquinoxalin-2-yl)-N-phenylhydrazinecarbothioamide CAS 208921-52-2
| CAS No. | 208921-52-2 |
| Molecular Formula | C15H12ClN5S |
| Molecular Weight | 329.81 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.
CATO supplies 2-(3-Chloroquinoxalin-2-yl)-N-phenylhydrazinecarbothioamide (CAS 208921-52-2), a certified reference material (molecular formula C15H12ClN5S, MW 329.81 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution, 2-(3-Chloroquinoxalin-2-yl)-N-phenylhydrazinecarbothioamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 329.81 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C15H12ClN5S |
| Molecular Weight | 329.81 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2016 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Chloroquinoxalin Standards
- n-(3-Chloroquinoxalin-2-yl)-2-methylbenzenesulfonamide (CAS 4029-40-7)
- n-(3-Chloroquinoxalin-2-yl)-3-methylbenzene-1-sulfonamide (CAS 565172-05-6)
- N-(3-Chloroquinoxalin-2-yl)-4-methylbenzenesulfonamide (CAS 4029-41-8)
- n-(3-Chloroquinoxalin-2-yl)thiophene-2-sulfonamide (CAS 848052-87-9)
- N-(3-chloroquinoxalin-2-yl)benzenesulfonamide (CAS 166271-34-7)
- 2-(3-Chloroquinoxalin-2-yl)-2-(phenylsulfonyl)acetonitrile (CAS 121512-58-1)
- N-(3-Chloroquinoxalin-2-yl)-N,4-dimethylbenzene-1-sulfonamide (CAS 166271-39-2)
- N-(3-chloroquinoxalin-2-yl)-3,4-dimethylbenzenesulfonamide (CAS 1949816-27-6)
Recommended Standards
- 1-((4-Chlorophenyl)sulfonyl)-N3,N3,N5,N5-tetramethyl-1H-1,2,4-triazole-3,5-diamine (CAS 477873-12-4)
- 2,3,4-Tribromoaniline (CAS 642-95-5)
- 2,4-Dibromo-3-(bromomethyl)pyridine (CAS 1805217-46-2)
- 2,3,5-Tribromo-4-methylpyridine (CAS 3430-25-9)
- 2,4-Dichloro-3-methylpyridine (CAS 132097-09-7)
- (S)-Ethyl 2-aminobutanoate hydrochloride (CAS 91462-82-7)
- 4-(Diethylamino)-6-phenyl-2-((3-(trifluoromethyl)benzyl)thio)pyrimidine-5-carbonitrile (CAS 303985-70-8)
- 3-Hydroxypropionic Acid Sodium Salt (CAS 6487-38-3)
- 5-Chloro-4-methoxy-2-methylpyridine 1-oxide (CAS 108004-85-9)
- Diflunisal Ethyl Ester (CAS 126093-86-5)
- 1-(4-Hydroxybenzo[d][1,3]dioxol-5-yl)ethan-1-one (CAS 23780-60-1)
- Tert-butyl (2-(bromomethyl)benzyl)carbamate (CAS 220364-33-0)
- 5-((1,1,1-Trifluoropropan-2-yl)oxy)pentane-1-sulfonyl chloride (CAS 1537504-37-2)
- Semaglutide impurity 60 (CAS CATO-C4X-222660)
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