2-((2,5-Dichlorophenyl)thio)acetaldehyde CAS 1249739-74-9
| CAS No. | 1249739-74-9 |
| Molecular Formula | C8H6Cl2OS |
| Molecular Weight | 221.10 g/mol |
| 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 2-((2,5-Dichlorophenyl)thio)acetaldehyde.
2-((2,5-Dichlorophenyl)thio)acetaldehyde (CAS 1249739-74-9) is a high-purity analytical reference standard with the molecular formula C8H6Cl2OS and a molecular weight of 221.10 g/mol.
Based on its molecular formula C8H6Cl2OS, 2-((2,5-Dichlorophenyl)thio)acetaldehyde contains sulfur-containing functionality, 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 221.10 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C8H6Cl2OS |
| Molecular Weight | 221.10 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Dichlorophenyl Standards
- S-(3,4-dichlorophenyl) ethanethioate (CAS 1378874-01-1)
- S-(3,5-dichlorophenyl) ethanethioate (CAS 1379311-78-0)
- 1-(3,5-Dichlorophenyl)thiourea (CAS 107707-33-5)
- 1-(3,4-Dichlorophenyl)thiourea (CAS 19250-09-0)
- 1-(2,4-Dichlorophenyl)thiourea (CAS 6326-14-3)
- 1-(2,5-Dichlorophenyl)thiourea (CAS 4949-85-3)
- N-(2,3-dichlorophenyl)thiourea (CAS 41542-06-7)
- 1-(2,4-Dichlorophenyl)-2-methoxyethan-1-ol (CAS 1514244-63-3)
Recommended Standards
- 8-bromo-[1,2,4]triazolo[4,3-a]pyridin-6-amine (CAS 1216212-82-6)
- 6-bromo-2-methyl-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 1250444-41-7)
- 6-bromo-1H-pyrazolo[4,3-b]pyridin-3-amine (CAS 1211516-09-4)
- 6-bromo-3-methyl-3H-[1,2,3]triazolo[4,5-b]pyridine (CAS 1257554-00-9)
- 2-(tert-Butyl)-4-chloro-5-cyclopropoxypyridine (CAS 1243370-89-9)
- Phthalic acid, bis-tridecyl ester (CAS 119-06-2)
- 3-Iodo-2,2'-bipyridine (CAS 184345-32-2)
- 2-(Tert-butyl)-4-fluoro-7-methyl-1H-indole-3-carbaldehyde (CAS 590348-31-5)
- 4-Chloro-5,6-dimethylpyrimidin-2-amine (CAS 14394-61-7)
- 5-Bromo-4-chloro-2-nitrobenzamide (CAS 1820608-87-4)
- 2-(2,4-Dimethylthiazol-5-yl)ethan-1-ol (CAS 2258-19-7)
- N-((1H-Indol-3-yl)methylene)-4-bromoaniline (CAS 111601-51-5)
- BTA-2 (CAS 10205-62-6)
- Semaglutide impurity 46 (CAS CATO-C4X-222646)
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