Triclosan Impurity 1 CAS 68508-18-9
| CAS No. | 68508-18-9 |
| Molecular Formula | C12H7Cl3O5S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Triclosan Impurity 1.
Triclosan Impurity 1 (CAS 68508-18-9), molecular formula C12H7Cl3O5SNa and molecular weight 392.58 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Triclosan Impurity 1 (C12H7Cl3O5SNa) contains a salt form, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 392.58 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C12H7Cl3O5S Na |
| Molecular Weight | 392.58 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1976 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Triclosan Standards
- Triclosan-d3 (2,4-dichlorophenoxy-d3) (CAS 1020719-98-5)
- Triclosan methyl D3 (methoxy D3) (CAS 1020720-00-6)
- Triclosan Impurity 7 (CAS 134479-47-3)
- Triclosan-13C12 (CAS 1365620-36-5)
- Triclosan (CAS 3380-34-5)
- Triclosan Methyl Ether (CAS 4640-01-1)
- Triclosan Impurity 4 (CAS 546127-65-5)
- Triclosan Impurity 3 (CAS 63709-57-9)
Recommended Standards
- Dicyclohexylamine (S)-2-(((benzyloxy)carbonyl)amino)-5-(cyclohexyloxy)-5-oxopentanoate (CAS 111479-43-7)
- Pranidipine (CAS 99522-79-9)
- 2,8-Diazaspiro[4.5]Decan-7-one (CAS 2166785-45-9)
- (5-Methyl-1,3-thiazol-2-yl)acetonitrile (CAS 851269-14-2)
- 4-Bromo-1-methyl-1H-imidazole hydrobromide (CAS 1215206-41-9)
- 1-(3-Amino-6-bromopyridin-2-yl)ethan-1-one (CAS 1393585-02-8)
- Ethyl 3-(4-fluorophenyl)-1-methyl-1H-pyrazole-5-carboxylate (CAS 943863-69-2)
- Lercanidipine Impurity 72 (CAS 320750-11-6)
- (2R,3S)-3-Aminobutan-2-ol (CAS 72174-18-6)
- Semaglutide impurity 47 (CAS CATO-C4X-222647)
Why CATO?
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