1-(3-Methyl-isothiazol-5-yl)-ethanone CAS 90724-49-5
| CAS No. | 90724-49-5 |
| Molecular Formula | C6H7NOS |
| Molecular Weight | 141.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-(3-Methyl-isothiazol-5-yl)-ethanone (C6H7NOS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 141.19 g/mol, it falls into the low-molecular-weight range. 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).
CATO supplies 1-(3-Methyl-isothiazol-5-yl)-ethanone (CAS 90724-49-5), a certified reference material (molecular formula C6H7NOS, MW 141.19 g/mol) for analytical method development and quality control.
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 1-(3-Methyl-isothiazol-5-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 | C6H7NOS |
| Molecular Weight | 141.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 1-(3-Methyl-isothiazol-4-yl)-ethanone (CAS 23031-80-3)
- N-(Isothiazol-3-ylmethyl)ethanamine (CAS 952195-17-4)
- 2-(Isothiazol-5-yl)acetic acid (CAS 10271-84-8)
- 2-(Isothiazol-3-yl)acetic acid (CAS 10271-91-7)
- 2-(Isothiazol-4-yl)acetic acid (CAS 10271-93-9)
- 1-(Isothiazol-5-yl)ethan-1-ol (CAS 1285260-78-7)
- 1-(Isothiazol-3-yl)ethan-1-ol (CAS 1614825-80-7)
- (5-Methyl-isothiazol-3-yl)-methanol (CAS 1803598-19-7)
Recommended Standards
- 1-(4-Aminothiophen-2-yl)ethanone (CAS 692889-40-0)
- 1-(3-Aminothiophen-2-yl)ethanone (CAS 31968-33-9)
- 1-(4-Methyl-2-thiazolyl)ethanone (CAS 7533-07-5)
- 1-(2-Methylthiazol-5-yl)ethanone (CAS 43040-02-4)
- 4-Fluoro-2-methyl-3-(trifluoromethyl)benzoic acid (CAS 2167320-60-5)
- methyl(2,2,2-trifluoroethoxy)amine hydrochloride (CAS 2044796-79-2)
- tert-Butyl ((1R,2S)-1-((cyclopropylsulfonyl)carbamoyl)-2-vinylcyclopropyl)carbamate, 97% (CAS 630421-48-6)
- 5-(Piperidin-1-yl)pyrimidine-2,4-diol (CAS 37454-53-8)
- 4-(3,5-Dichlorobenzoyl)-8-methyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326808-66-5)
- 1-(3-Cyclohexyl-3-phenylpropyl)piperidine (CAS 29869-50-9)
- 4-ethyl 2-methyl 3,5-dimethyl-1H-pyrrole-2,4-dicarboxylate (CAS 54584-26-8)
- 2-((2-Chloro-6-fluorobenzyl)thio)-3-ethyl-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 587003-03-0)
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