2,3,5-Trichloro-1,4-benzoquinone CAS 634-85-5
| CAS No. | 634-85-5 |
| Molecular Formula | C6HCl3O2 |
| Molecular Weight | 211.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 2,3,5-Trichloro-1,4-benzoquinone (C6HCl3O2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2,3,5-Trichloro-1,4-benzoquinone (CAS 634-85-5) is a high-purity analytical reference standard with the molecular formula C6HCl3O2 and a molecular weight of 211.43 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C6HCl3O2 |
| Molecular Weight | 211.43 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Trichloro Standards
- 2,4,6-Trichloro-5-pyrimidinecarboxaldehyde (CAS 50270-27-4)
- 1,2,3-Trichloro-5-methoxybenzene (CAS 54135-82-9)
- 2,4,6-Trichloro-5-ethylpyrimidine (CAS 1780-38-7)
- 3,4,6-Trichloro-1,2-benzenediamine (CAS 1962-10-3)
- 2,4,5-Trichloro-6-ethylpyrimidine (CAS 6585-48-4)
- 2,3,5-Trichloro-6-ethylpyridine (CAS 113458-82-5)
- 2,4,6-Trichloro-3,5-dimethylpyridine (CAS 98274-04-5)
- 2,4,6-Trichloro-3-methylaniline (CAS 5400-76-0)
Recommended Standards
- 2,5-Dichloropyrimidine-4-carbonyl chloride (CAS 142652-27-5)
- 5-Bromo-2-chloro-4-fluoropyrimidine (CAS 1956324-84-7)
- 2,6-Dichloropyrimidine-4-carbonyl chloride (CAS 26830-94-4)
- 4-Bromo-2-chloro-5-fluoropyrimidine (CAS 1441422-22-5)
- 5''-Bromo-[2,2':5',2''-terthiophene]-5-carbaldehyde (CAS 161726-69-8)
- Ethyl 2-(3-ethoxy-3-oxopropyl)-5-methyl-6-oxo-3,6-dihydropyrimidine-4-carboxylate (CAS 75624-19-0)
- (1R,2R,4S)-7-Benzyl-2-methyl-7-azabicyclo[2.2.1]heptan-2-amine (CAS 2750400-49-6)
- 6,7-Dichloro-3-hydroxy-2,3-dihydro-1h-indol-2-one (CAS 1247122-34-4)
- (6-(Hexylthio)-9H-purin-9-yl)methanol (CAS 14133-10-9)
- 2-Bromo-4,6-difluorophenyl isocyanate (CAS 190774-48-2)
- 5-Acetyl-2-pyrrolidinone (CAS 85858-09-9)
- 3-Methyl-1-phenylimidazolidine-2,4-dione (CAS 55889-14-0)
- 1-(4-Isopropylphenyl)Urea (CAS 56046-17-4)
- [3-31]-Semaglutide D (CAS C152H230N42O47)
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