5-Methoxythiophene-2-carbonitrile CAS 58703-25-6
| CAS No. | 58703-25-6 |
| Molecular Formula | C6H5NOS |
| Molecular Weight | 139.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Methoxythiophene-2-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.
CATO supplies 5-Methoxythiophene-2-carbonitrile (CAS 58703-25-6), a certified reference material (molecular formula C6H5NOS, MW 139.17 g/mol) for analytical method development and quality control.
Structurally, 5-Methoxythiophene-2-carbonitrile (C6H5NOS) 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 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 139.17 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H5NOS |
| Molecular Weight | 139.17 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methoxythiophene Standards
- 3-Methoxythiophene-2-carbonitrile (CAS 57059-18-4)
- 3-Methoxythiophene-2-carbaldehyde (CAS 35134-07-7)
- 4-Methoxythiophene-2-carbaldehyde (CAS 98316-32-6)
- 4-Methoxythiophene-3-carbaldehyde (CAS 82069-74-7)
- 5-Methoxythiophene-3-carbaldehyde (CAS 78395-10-5)
- 2-methoxythiophene-3-carbaldehyde (CAS 41057-07-2)
- 4-Methoxythiophene-2-thiol (CAS 1082350-78-4)
- (E)-3-methoxythiophene-2-carbaldehyde oxime (CAS 1824827-05-5)
Recommended Standards
- 5-Fluoro-N,2-dimethylaniline (CAS 881848-77-7)
- 5-Methyl-thiophene-2-isocyanate (CAS 76536-99-7)
- 5-Fluoro-2,4-dimethylaniline (CAS 400-02-2)
- Acamprosate EP Impurity A (CAS 3687-18-1)
- 5,7-Dimethyloxazolo[5,4-d]pyrimidine (CAS 120266-89-9)
- 6-chloro-3-(4-nitrophenyl)-2H-1,4-benzoxazine (CAS 477867-74-6)
- Ethyl 3-oxo-2,3,5,6,7,8-hexahydroimidazo[1,5-a]pyrazine-1-carboxylate (CAS 2512865-07-3)
- 7-Chloro-2-(4-isopropylphenyl)-8-methylquinoline-4-carbonyl chloride (CAS 1160256-12-1)
- 3-Cyano-6-(4-fluorophenyl)pyridin-2-yl 4-fluorobenzoate (CAS 251307-42-3)
- 4-Methyl-1-propylpyridin-1-ium bromide (CAS 70850-58-7)
- (R)-5'-Bromo-2',3'-dihydrospiro[imidazolidine-4,1'-indene]-2,5-dione (CAS 1889290-54-3)
- 3-(2-Chlorophenyl)-N-[(3,4-dimethoxyphenyl)methyl]-5-methyl-1,2-oxazole-4-carboxamide (CAS 895684-98-7)
- 2-[2-(Benzyloxy)phenyl]furan (CAS 893736-01-1)
- D-Tyr10-Tirzepatide (CAS CATO-CPTD788922)
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