2-Thiocyanato-1H-pyrrole CAS 66786-05-8
| CAS No. | 66786-05-8 |
| Molecular Formula | C5H4N2S |
| Molecular Weight | 124.16 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.
2-Thiocyanato-1H-pyrrole (CAS 66786-05-8), molecular formula C5H4N2S and molecular weight 124.16 g/mol, is a CATO reference standard with documented purity and traceability.
2-Thiocyanato-1H-pyrrole (C5H4N2S) contains a nitrile group, sulfur-containing functionality. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H4N2S |
| Molecular Weight | 124.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Thiocyanato Standards
- 3-Thiocyanato-1H-indole (CAS 23706-25-4)
- 5-Thiocyanato-1H-benzo[d]imidazole (CAS 132474-64-7)
- 2-Thiocyanato-1H-benzo[d]imidazole (CAS 5285-94-9)
- 3-Thiocyanato-2,3-dihydrothiophene 1,1-dioxide (CAS 73909-05-4)
- 1-Phenyl-2-thiocyanato-ethanone (CAS 5399-30-4)
- 6-Methyl-3-thiocyanato-1H-indole (CAS 1112908-20-9)
- 7-Methyl-3-thiocyanato-1H-indole (CAS 1112908-23-2)
- 5-Methyl-2-thiocyanato-1H-benzo[d]imidazole (CAS 66558-19-8)
Recommended Standards
- 2-Methylthiazole-5-carbonitrile (CAS 65735-10-6)
- 3-Fluoro-o-xylene (CAS 443-82-3)
- 2-Methylthiazole-4-carbonitrile (CAS 21917-76-0)
- 3-Methylisothiazole-4-carbonitrile (CAS 58850-81-0)
- (2-Isopropyl-5-methylcyclohexyl)methanamine (CAS 1212822-82-6)
- Ethyl 5-amino-1-(2-hydroxyethyl)-1H-pyrazole-4-carboxylate (CAS 58046-49-4)
- 2,2,4-Trimethyl-4-phenyl-6-trityl-1,2,3,4-tetrahydroquinoline (CAS 121830-51-1)
- 4-Bromo-2-(2,6-difluoro-4-(trifluoromethyl)phenoxy)aniline (CAS 2244087-59-8)
- 6-Ethyl-4,5-dihydropyridazin-3(2H)-one (CAS 412338-27-3)
- 2-Ethylnicotinic Acid (CAS 3421-76-9)
- 2-Methoxy-2-(3-pyrrolinomethyl) benzophenone (CAS 898762-85-1)
- Benzyl (2-(cyclopropylamino)cyclohexyl)carbamate (CAS 1353952-73-4)
- 3-(5-amino-1,3,4-oxadiazol-2-yl)benzene-1-carbothioamide (CAS 1223354-08-2)
- Semaglutide impurity 205 (CAS CATO-C4X-2226205)
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