5-Cyanothiophene-2-carboxaldehyde CAS 21512-16-3
| CAS No. | 21512-16-3 |
| Molecular Formula | C6H3NOS |
| Molecular Weight | 137.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Cyanothiophene-2-carboxaldehyde (C6H3NOS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
5-Cyanothiophene-2-carboxaldehyde (CAS 21512-16-3), molecular formula C6H3NOS and molecular weight 137.16 g/mol, is a CATO reference standard with documented purity and traceability.
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 5-Cyanothiophene-2-carboxaldehyde 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 | C6H3NOS |
| Molecular Weight | 137.16 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Cyanothiophene Standards
- 5-Cyanothiophene-2-carboxamide (CAS 67808-45-1)
- 5-Cyanothiophene-3-carboxylic acid (CAS 1211589-12-6)
- 2-Cyanothiophene-3-carboxylic acid (CAS 71154-34-2)
- 3-Cyanothiophene-2-carboxylic acid (CAS 58231-00-8)
- 4-Cyanothiophene-2-carboxylic acid (CAS 406719-77-5)
- 4-Cyanothiophene-3-carboxylic acid (CAS 78071-34-8)
- 5-Cyanothiophene-2-carboxylic Acid (CAS 59786-39-9)
- Methyl 2-cyanothiophene-3-carboxylate (CAS 67808-30-4)
Recommended Standards
- 4-Formylthiophene-3-carbonitrile (CAS 59786-34-4)
- Isothiazolo[4,3-d]pyrimidine (CAS 7130-83-8)
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- Isothiazolo[4,5-d]pyrimidine (CAS 7078-51-5)
- 2406-25-9 Di-t-butyl nitroxide Di(tert-butyl)aminyl oxide Nitroxide, bis(1,1-dimethylethyl) Nitroxide, di-tert-butyl AI3-51507 BRN 1901966 Di-tert-butyl nitroxide DTBN EINECS 219-298-0 (CAS 2406-25-9)
- 3-(Benzyloxy)-6-methoxypyridazine (CAS 494777-66-1)
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- 5-Hydroxycyclohexane-1,3-dione (CAS 204844-83-7)
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- 4-(5-(1-Hydroxypropyl)-4-methylpyridin-2-yl)piperazine-1-carbaldehyde (CAS 1355180-49-2)
- Semaglutide impurity 227 (CAS CATO-C4X-2226227)
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