Triclosan Impurity 4 CAS 546127-65-5
| CAS No. | 546127-65-5 |
| Molecular Formula | C12H7Cl3O3 |
| Molecular Weight | 305.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Triclosan Impurity 4 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.
CATO supplies Triclosan Impurity 4 (CAS 546127-65-5), a certified reference material (molecular formula C12H7Cl3O3, MW 305.54 g/mol) for analytical method development and quality control.
Based on its molecular formula C12H7Cl3O3, Triclosan Impurity 4 contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 305.54 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H7Cl3O3 |
| Molecular Weight | 305.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
Related Triclosan Standards
- Triclosan methyl D3 (methoxy D3) (CAS 1020720-00-6)
- Triclosan Methyl Ether (CAS 4640-01-1)
- Triclosan-13C6 (CAS CATO-CCHM704075)
- Triclosan-d3 (2,4-dichlorophenoxy-d3) (CAS 1020719-98-5)
- Triclosan (CAS 3380-34-5)
- Triclosan Impurity 5 (CAS 67028-17-5)
- Triclosan Impurity 3 (CAS 63709-57-9)
- Triclosan Impurity 7 (CAS 134479-47-3)
Recommended Standards
- 6-((2,4,5-Trichlorobenzyl)oxy)pyridazin-3(2H)-one (CAS 87426-06-0)
- (R)-(+)-1-Benzyl-2,2-diphenylethylamine 94964-58-6 ACMC-20apki (CAS 94964-58-6)
- 5-Chloro-2-(3,4-dichlorophenyl)-4-methoxypyridazin-3(2H)-one (CAS 478080-44-3)
- ethyl 3-(3-bromo-4-chlorophenyl)-3-oxopropanoate (CAS 112704-82-2)
- 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethoxy)benzaldehyde (CAS 923281-74-7)
- 2-Amino-5-methyl-1H-benzo[d]imidazol-6-ol (CAS 419564-12-8)
- Pulsatilloside E (CAS 366814-43-9)
- 5-Chloro-2,3-bis(trifluoromethyl)pyridine (CAS 1804142-23-1)
- Ethylene Glycol-d6 (CAS 15054-86-1)
- 4-(4-Chloro-2-nitro-phenoxy)-benzaldehyde (CAS 56135-50-3)
- N-(4-Bromophenyl)-2-(trifluoromethyl)-4-pyridinamine (CAS 338401-91-5)
- tert-butyl 3-(2-methoxy-2-oxoethyl)azetidine-1-carboxylate (CAS 497160-14-2)
- (1-Aminopiperidin-2-yl)methanol (CAS 188053-40-9)
- Acetyl-Tau Peptide (273-284) amide trifluoroacetate salt (CAS 1684399-52-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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