3,5-Dimethoxyisothiazole-4-carbonitrile CAS 35544-51-5
| CAS No. | 35544-51-5 |
| Molecular Formula | C6H6N2O2S |
| Molecular Weight | 170.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3,5-Dimethoxyisothiazole-4-carbonitrile (CAS 35544-51-5), molecular formula C6H6N2O2S and molecular weight 170.19 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H6N2O2S, 3,5-Dimethoxyisothiazole-4-carbonitrile contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 170.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 manufactures 3,5-Dimethoxyisothiazole-4-carbonitrile 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 | C6H6N2O2S |
| Molecular Weight | 170.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Dimethoxyisothiazole Standards
Recommended Standards
- 3-(2,4-Dioxothiazolidin-3-yl)propanenitrile (CAS 49545-02-0)
- 3-Amino-4-nitrobenzenethiol (CAS 54030-08-9)
- 3-((1H-Imidazol-2-yl)thio)acrylic acid (CAS 335155-51-6)
- 4-(Methylthio)-3-nitropyridine (CAS 38240-32-3)
- 4-((2-Bromophenyl)thio)butan-2-one (CAS 1044058-13-0)
- 4-(Difluoromethyl)-2-iodo-5-(trifluoromethyl)pyridin-3-ol (CAS 1805539-78-9)
- 313683-81-7 7-bromo-5-phenyl-4-propionyl-1,3,4,5-tetrahydro-2H-benzo[e][1,4]diazepin-2-one F1596-0411 (CAS 313683-81-7)
- 1-(4-Ethylcyclohexyl)-N-methylmethanamine (CAS 1179599-73-5)
- 1-Cyclopentyl-5-ethyl-1h-pyrazol-4-amine (CAS 1506443-80-6)
- 2-Bromo-3-chloro-5-(trifluoromethyl)aniline (CAS 1805585-12-9)
- 2-Phenyl-6-propylpyridine (CAS 883793-06-4)
- Paliperidone Impurity 51 (CAS CATO-C4X-172451)
- rel-(1S,4S)-5,5-difluoro-2-azabicyclo[2.2.2]octane (CAS 1354411-03-2)
- Peptide Impurity 27 (CAS 1350456-68-6)
Why CATO?
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