1,2,3-Trichloro-5-ethynylbenzene CAS 2013531-87-6
| CAS No. | 2013531-87-6 |
| Molecular Formula | C8H3Cl3 |
| Molecular Weight | 205.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1,2,3-Trichloro-5-ethynylbenzene (CAS 2013531-87-6) is a high-purity analytical reference standard with the molecular formula C8H3Cl3 and a molecular weight of 205.47 g/mol.
1,2,3-Trichloro-5-ethynylbenzene (C8H3Cl3) contains chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures 1,2,3-Trichloro-5-ethynylbenzene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H3Cl3 |
| Molecular Weight | 205.47 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl-containing |
Related Trichloro Standards
- 1,2,5-Trichloro-3-ethynylbenzene (CAS 1057669-99-4)
- 1,3,5-Trichloro-2-ethynylbenzene (CAS 152174-09-9)
- 1,2,4-Trichloro-5-ethynylbenzene (CAS 6546-87-8)
- 4,4,4-Trichloro-3-hydroxybutanoic acid (CAS 13159-46-1)
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Recommended Standards
- Methyl 4,4,4-Trichlorobutanoate (CAS 19376-57-9)
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- 1,2:3,4-Tetrahydrofluoranthene (CAS 20279-21-4)
- 4-Chloro-5-((naphthalen-2-ylthio)methyl)isoxazol-3(2H)-one (CAS 89661-18-7)
- 2-Chloro-4-(trifluoromethyl)nicotinamide (CAS 886762-28-3)
- (2-Phenylphenyl)urea (CAS 13262-46-9)
- 2-(((Piperidin-2-ylmethyl)amino)methyl)benzonitrile hydrochloride (CAS 1289384-68-4)
- 3-(Methylamino)thietane-3-carbonitrile 1,1-dioxide (CAS 2286106-43-0)
- N-(4-Bromo-3-methylphenyl)-4-(thiophen-2-yl)tetrahydro-2H-pyran-4-carboxamide (CAS 877651-29-1)
- methyl 3-(4-aminophenyl)-2-methylpropanoate (CAS 144871-88-5)
- Fragment-[9-31]-Semaglutide (CAS CATO-C4X-2226181)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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