Naphtho[2,1-b]thiophene CAS 233-02-3
| CAS No. | 233-02-3 |
| Molecular Formula | C13H15N2O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 295.18 g/mol gives Naphtho[2,1-b]thiophene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Naphtho[2,1-b]thiophene (CAS 233-02-3), a certified reference material (molecular formula C13H15N2OBr, MW 295.18 g/mol) for analytical method development and quality control.
The molecular framework of Naphtho[2,1-b]thiophene (C13H15N2OBr) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), Naphtho[2,1-b]thiophene 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 | C13H15N2O Br |
| Molecular Weight | 295.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Naphtho Standards
- Naphtho[1,8-ef]-1,4-diazepine-2-acetamide, 1,2,3,4-tetrahydro-3-oxo- (CAS 1009278-40-3)
- 101312-79-2 Naphtho[2,3-c]furan-6-ol,1,3,3a,4,9,9a-hexahydro-4-(4-hydroxy-3-methoxyphenyl)-1,7-dimethoxy-,(1S,3aR,4S,9aR)- (CAS 101312-79-2)
- 1H-Naphtho[2,3-d]imidazol-2-amine (CAS 102408-31-1)
- 5-{naphtho[2,1-b]furan-2-yl}-1H-pyrazole (CAS 1025724-76-8)
- (4-(1H-naphtho[1,8-de][1,3,2]diazaborinin-2(3H)-yl)phenyl)methanol (CAS 1072960-84-9)
- Naphtho[2,3-d][1,3]dioxole-6-carbonitrile (CAS 107401-98-9)
- Naphtho[1',2':4,5]imidazo[1,2-a]pyrimidine-5,6-dione (CAS 109505-90-0)
- 1H-Naphtho[1,2-d]imidazol-8-amine (CAS 111163-88-3)
Recommended Standards
- 3-(1-(2-Methoxyphenyl)-2,5-dimethyl-1H-pyrrol-3-yl)-3-oxopropanenitrile (CAS 1403566-42-6)
- Tert-butyl (3aS,6aR)-4-oxohexahydrocyclopenta[c]pyrrole-2(1H)-carboxylate (CAS 1701484-85-6)
- 1-((Benzyloxy)carbonyl)-3-fluoroazetidine-3-carboxylic acid (CAS 1781046-72-7)
- 2-(4-(Difluoromethyl)-5-hydroxy-6-methylpyridin-2-yl)acetonitrile (CAS 1805255-14-4)
- 7-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydrobenzo[f][1,4]oxazepin-5(2H)-one (CAS 1491157-36-8)
- N-(3-formylpyridin-2-yl)pivalamide (CAS 86847-64-5)
- Ethyl 2-((4-chlorophenyl)thio)acetate (CAS 52377-68-1)
- 3,3-dimethoxybutan-1-amine (CAS 1368920-29-9)
- (S)-Propyl 4-chloro-3-hydroxybutanoate (CAS 86728-94-1)
- Tau Peptide (245-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 1428134-39-7)
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