2-Chloro-1-(5-methyl-thiophen-2-yl)-ethanone CAS 31772-42-6
| CAS No. | 31772-42-6 |
| Molecular Formula | C7H7ClOS |
| Molecular Weight | 174.65 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-Chloro-1-(5-methyl-thiophen-2-yl)-ethanone.
CATO supplies 2-Chloro-1-(5-methyl-thiophen-2-yl)-ethanone (CAS 31772-42-6), a certified reference material (molecular formula C7H7ClOS, MW 174.65 g/mol) for analytical method development and quality control.
The molecular framework of 2-Chloro-1-(5-methyl-thiophen-2-yl)-ethanone (C7H7ClOS) is characterized by sulfur-containing functionality, a hydroxyl group, an ether linkage, 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).
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 2-Chloro-1-(5-methyl-thiophen-2-yl)-ethanone 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 | C7H7ClOS |
| Molecular Weight | 174.65 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-Chloro-6-(ethylsulfanyl)pyrazine (CAS 1094842-83-7)
- 4-Chloro-2-(Sulfanylmethyl)phenol (CAS 118143-41-2)
- 1-(4-Chloro-5-methylthiophen-2-yl)ethan-1-one (CAS 123418-42-8)
- 2-Chloro-5-(methylthio)phenol (CAS 1243386-43-7)
- 5-Chloro-2-(ethylthio)pyrimidine (CAS 124595-96-6)
- 2-Chloro-4-(ethylsulfanyl)pyrimidine (CAS 1250161-32-0)
- 1-Chloro-3-(methylsulfinyl)benzene (CAS 13150-73-7)
- 4-chloro-5-methyl-6-(methylthio)pyrimidine (CAS 1343398-23-1)
Recommended Standards
- 2-Chloro-1-(4-methyl-2-thienyl)-ethanone (CAS 556110-51-1)
- 2-Chloro-3-methoxybenzenethiol (CAS 83119-62-4)
- 2-Chloro-1-(3-methyl-2-thienyl)-ethanone (CAS 556110-52-2)
- 2-Chloro-4-methoxybenzenethiol (CAS 89793-44-2)
- Spiro[indoline-3,3'-pyrrolidin]-2-one (CAS 6786-41-0)
- 3-(2-(Bromomethyl)-3-methylbutyl)thiophene (CAS 1492707-86-4)
- N-(Isoxazol-3-yl)-1-(thiophen-2-ylsulfonyl)piperidine-4-carboxamide (CAS 620571-57-5)
- Draflazine (CAS 120770-34-5)
- (S)-hexahydro-1'H-spiro[oxetane-3,4'-pyrrolo[1,2-a]pyrazine] oxalate (CAS 2165996-68-7)
- 5-Methyl-4-((2-methylpiperidin-1-yl)methyl)isoxazole-3-carboxylic acid (CAS 1119449-81-8)
- 3-Amino-4-(4-fluorophenyl)-1-methylazetidin-2-one (CAS 1706532-44-6)
- 6-Amino-2-methoxy-5-(4-methylbenzenesulfonyl)pyridine-3-carbonitrile (CAS 338774-42-8)
- Ethyl 2-Oxobicyclo[3.1.0]hexane-6-carboxylate (CAS 134176-18-4)
- Semaglutide impurity 76 (CAS CATO-C4X-222676)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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