2-(2-Chloroallyl)-5-methylthiophene CAS 1314902-57-2
| CAS No. | 1314902-57-2 |
| Molecular Formula | C8H9ClS |
| Molecular Weight | 172.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 2-(2-Chloroallyl)-5-methylthiophene (C8H9ClS) is characterized by sulfur-containing functionality, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-(2-Chloroallyl)-5-methylthiophene (CAS 1314902-57-2) is a high-purity analytical reference standard with the molecular formula C8H9ClS and a molecular weight of 172.68 g/mol.
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 | C8H9ClS |
| Molecular Weight | 172.68 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloroallyl Standards
- 2-(2-Chloroallyl)-3-methylthiophene (CAS 951885-73-7)
- 1-(2-Chloroallyl)-3-fluorobenzene (CAS 731773-03-8)
- 4-(2-Chloroallyl)benzonitrile (CAS 731772-74-0)
- 1-(2-Chloroallyl)-2-methylbenzene (CAS 731772-12-6)
- 2-Chloroallyl 2-fluoro-2-oxoacetate (CAS 115686-70-9)
- 1-(2-Chloroallyl)-4-ethylbenzene (CAS 1263366-21-7)
- 1-(2-Chloroallyl)-2,4-dimethylbenzene (CAS 951891-63-7)
- 1-(2-Chloroallyl)-3,5-dimethylbenzene (CAS 951892-21-0)
Recommended Standards
- 2-(3-Chlorophenyl)ethane-1-thiol (CAS 1267263-12-6)
- 4-Chloro-3-ethylbenzenethiol (CAS 1314935-29-9)
- 2-(4-Chlorophenyl)ethane-1-thiol (CAS 121027-25-6)
- 2-Chloro-4,5,6,7-tetrahydrobenzo[b]thiophene (CAS 1380233-43-1)
- 1-(4-Fluoro-3-methylphenyl)cyclopropan-1-ol (CAS 1342169-41-8)
- Imibenconazole (CAS 86598-92-7)
- (4S)-3-Acetyl-1,3-thiazolidine-4-carboxylic acid (CAS 104527-63-1)
- Citalopram EP impurity C HCl (CAS 372941-54-3（free base）)
- N-(2-Bromo-4-methylphenyl)-5-oxoprolinamide (CAS 1048971-79-4)
- 4,5-Dihydro[1,2,5]oxadiazolo[3,4-f]cinnolin-3-ium-3-olate (CAS 257869-90-2)
- 2-Hydroxy-1,2-di(naphthalen-2-yl)ethan-1-one (CAS 42040-68-6)
- 3-[3,4-Bis(Ethoxymethoxy)phenyl]-1-[2-hydroxy-4,6-bis(ethoxymethoxy)phenyl]-2-propen-1-one (CAS 1076199-11-5)
- (3-((4-Fluorophenyl)sulfonyl)azetidin-1-yl)(4-phenyltetrahydro-2H-pyran-4-yl)methanone (CAS 1797839-04-3)
- Tirzepatide Impurity 51 (CAS CATO-C4X-324051)
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