1-Benzothiophen-3-ylisocyanate CAS 321309-37-9
| CAS No. | 321309-37-9 |
| Molecular Formula | C9H5NOS |
| Molecular Weight | 175.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Benzothiophen-3-ylisocyanate (CAS 321309-37-9) is a high-purity analytical reference standard with the molecular formula C9H5NOS and a molecular weight of 175.21 g/mol.
The molecular framework of 1-Benzothiophen-3-ylisocyanate (C9H5NOS) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 1-Benzothiophen-3-ylisocyanate 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 | C9H5NOS |
| Molecular Weight | 175.21 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Benzothiophen Standards
- 1-Benzothiophen-5-yl-isocyanate (CAS 239097-78-0)
- 1-Benzothiophen-7-ylacetonitrile (CAS 17381-53-2)
- 2-(1-Benzothiophen-3-yl)acetonitrile (CAS 3216-48-6)
- 1-(1-Benzothiophen-3-yl)ethan-1-amine (CAS 158868-44-1)
- 1-(1-benzothiophen-2-yl)ethan-1-amine (CAS 165737-36-0)
- 2-(1-Benzothiophen-5-yl)ethanamine (CAS 933715-52-7)
- (1-Benzothiophen-4-yl)boronic acid (CAS 177735-30-7)
- benzothiophen-5-ylboronic acid (CAS 845872-49-3)
Recommended Standards
- 1,4-dimethyl-1H-pyrazole-5-sulfonamide (CAS 98389-46-9)
- 1,3-Dimethyl-1H-pyrazole-5-sulfonamide (CAS 88398-89-4)
- 1-Ethyl-1H-imidazole-2-sulfonamide (CAS 89501-88-2)
- 1,2-Dimethyl-1h-imidazole-4-sulfonamide (CAS 415913-06-3)
- 4-Amino-5-cyclohexylpentanoic acid (CAS 14293-07-3)
- 5-(Adamantan-1-yl)furan-2-carboxylic acid (CAS 543694-49-1)
- 4-[4-(4-Fluorophenyl)piperazino]aniline (CAS 251097-69-5)
- Methyl (2R,3S)-3-fluoropyrrolidine-2-carboxylate hydrochloride (CAS 942230-95-7)
- (R)-6-Methyl-7-((S)-1-phenylethyl)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-ol (CAS 1951425-17-4)
- Trans-4-(1-hydroxy-1-methyl-ethyl)cyclohexanecarboxylicacid (CAS 183996-92-1)
- SMI-4a (CAS 438190-29-5)
- (S)-2-Hydroxy-2-(naphthalen-2-yl)acetic acid (CAS 144371-23-3)
- 1,2-dimethyl-1H-imidazol-5-ylboronic acid (CAS 554453-76-8)
- Tirzepatide Impurity 15 (CAS CATO-C4X-324015)
Why CATO?
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