3-((Cyanomethyl)sulfonyl)-5-methylisothiazole-4-carbonitrile CAS 339021-05-5
| CAS No. | 339021-05-5 |
| Molecular Formula | C7H5N3O2S2 |
| Molecular Weight | 227.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-((Cyanomethyl)sulfonyl)-5-methylisothiazole-4-carbonitrile (CAS 339021-05-5), molecular formula C7H5N3O2S2 and molecular weight 227.26 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H5N3O2S2, 3-((Cyanomethyl)sulfonyl)-5-methylisothiazole-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 227.26 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-((Cyanomethyl)sulfonyl)-5-methylisothiazole-4-carbonitrile meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H5N3O2S2 |
| Molecular Weight | 227.26 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Cyanomethyl Standards
- N-[4-(Cyanomethyl)phenyl]-2,2,2-trifluoroacetamide (CAS 63898-17-9)
- 2-(4-(Cyanomethyl)piperazin-1-yl)benzonitrile (CAS 1272841-35-6)
- 2-Cyanomethyl-morpholine-4-carboxylic acid tert-butyl ester (CAS 259180-69-3)
- Ethyl 1-(Cyanomethyl)-1H-indole-2-carboxylate (CAS 126718-04-5)
- 3-(4-(Cyanomethyl)piperazin-1-yl)pyrazine-2-carbonitrile (CAS 1272934-66-3)
- Methyl 1-(cyanomethyl)-5-methyl-1H-indole-2-carboxylate (CAS 796069-31-3)
- Cyanomethyl 4-(1H-pyrrol-1-yl)benzoate (CAS 439095-55-3)
- 2-Cyanomethyl N-Methyl-N-phenyldithiocarbamate 76926-16-4 2-([METHYL(PHENYL)CARBAMOTHIOYL]SULFANYL)ACETONITRILE;2-CYANOMETHYL N-METHYL-N-PHENYLDITHIOCARBAMATE;CYANOMETHYL METHYL(PHENYL)CARBAMODITHIOATE;CYANOMETHYL N-METHYL-N-PHENYL DITHIOCARBAMATE SC10804 (CAS 76926-16-4)
Recommended Standards
- 3-((4-Fluorophenyl)amino)-2,3-dihydrothiophene 1,1-dioxide (CAS 321942-96-5)
- 3-((Tert-butoxycarbonyl)amino)bicyclo[2.1.0]Pentane-1-carboxylic acid (CAS 2387220-99-5)
- 2-Pyridin-3-yl-benzoic acid ethyl ester (CAS 225797-25-1)
- 3-(1-Ethyl-3-(hydroxymethyl)-1H-pyrazol-5-yl)benzonitrile (CAS 777952-88-2)
- 3-Acetoxy-3,4-dimethylbenzophenone (CAS 890099-17-9)
- 2-Hydroxyanthracene-1-carboxylic acid (CAS 113988-32-2)
- Ethyl 2-amino-3-(1H-indol-3-yl)propanoate (CAS 6519-66-0)
- 8-Chloro-3-iodoquinoline (CAS 847727-21-3)
- N-(4-((Methylthio)methyl)thiazol-2-yl)-4-(morpholinosulfonyl)benzamide (CAS 942009-72-5)
- Allyl (3'R)-3-bromo-2-oxo-[1,3'-bipyrrolidine]-1'-carboxylate (CAS 209468-19-9)
- 3,3'-oxybis(1,1,1,3,5,5,5-heptamethyltrisiloxane) (CAS 2003-92-1)
- 1-[4-(Pyridin-3-ylmethoxy)-phenyl]-piperazine trihydrochloride (CAS 1187928-13-7)
- (1<I>R</I>,2<I>R</I>)-trans-<I>N</I>-Boc-1,2-cyclohexanediamine (CAS 146504-07-6)
- Tau Peptide (274-288) trifluoroacetate salt (CAS 330456-39-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com