Tienilic Acid Impurity 2 CAS 55901-78-5
| CAS No. | 55901-78-5 |
| Molecular Formula | C13H10Cl2O4S |
| Molecular Weight | 333.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Tienilic Acid Impurity 2 is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Tienilic Acid Impurity 2 (CAS 55901-78-5), molecular formula C13H10Cl2O4S and molecular weight 333.19 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Tienilic Acid Impurity 2 (C13H10Cl2O4S) is characterized by a sulfone group, 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 its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Tienilic Acid Impurity 2 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 | C13H10Cl2O4S |
| Molecular Weight | 333.19 g/mol |
| 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.) | 1972 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Tienilic Standards
Recommended Standards
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- 3-Chloro-5-(4-chlorophenyl)-4-(4-fluorophenyl)-6-methylpyridazine (CAS 2034157-25-8)
- 3-(4-Bromophenyl)-2-sulfanylidene-1,2,3,4-tetrahydroquinazolin-4-one (CAS 1028-39-3)
- 1-Bromo-2,4-difluoro-3-methoxybenzene (CAS 221221-00-7)
- 2-[1-(aminomethyl)cyclohexyl]acetamide hydrochloride (CAS 1989659-23-5)
- Methyl 3,5-dibromo-4-chloro-2-hydroxybenzoate (CAS 941294-24-2)
- (E)-2-(2-Fluorophenyl)-3-[3-(2-pyrimidinyloxy)phenyl]-2-propenenitrile (CAS 861210-17-5)
- 6-(Pyrrolidin-3-yloxy)pyridine-3-carbonitrile (CAS 1250163-28-0)
- 2-Amino-5-methoxybenzyl bromide (CAS 1261775-21-6)
- Ethyl 5-(difluoromethyl)-1H-imidazole-2-carboxylate (CAS 1383742-13-9)
- N-(tert-Butoxycarbonyl)-2,2-dimethyl-1,3-propanediamine (CAS 292606-35-0)
- Methyl 2-(4-aminophenyl)-2-hydroxyacetate (CAS 182918-73-6)
- Semaglutide Impurity 133 (CAS CATO-C4X-2226133)
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