Anthra[2,1-b]thiophene CAS 227-56-5
| CAS No. | 227-56-5 |
| Molecular Formula | C16H10S |
| Molecular Weight | 234.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Anthra[2,1-b]thiophene (CAS 227-56-5), molecular formula C16H10S and molecular weight 234.32 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Anthra[2,1-b]thiophene (C16H10S) is characterized by sulfur-containing functionality, a polycyclic aromatic system. 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Anthra[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 | C16H10S |
| Molecular Weight | 234.32 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 1 |
Related Anthra Standards
- Anthra[2,1,9-mna]naphth[2,3-h]acridine-5,10,15(16H)-trione (CAS 3271-76-9)
- Anthra[9,1,2-cde]benzo[rst]pentaphene-5,10-dione (CAS 116-71-2)
- Anthra[2,1,9-def:6,5,10-d'e'f′]diisoquinoline-1,3,8,10(2H,9H)-tetrone, 2,9-bis[2-(dimethylamino)ethyl]-, 4-methylbenzenesulfonate (1:2) (CAS 1535171-00-6)
- 7H-Anthra[2,1,9-mna]naphtho[2'',3'':6',7']indolo[2',3':5,6]naphtho[2,3-h]acridine-8,13,18,20,25(19H)-pentaone (CAS 83721-61-3)
- 851817-11-3 [Anthra[2,3-b:6,7-b']bisthiene-5,11-diyldi(ethyne-2,1-diyl)]bis(triethylsilane) DTXSID10731257 (CAS 851817-11-3)
- Anthra[2",1",9":4,5,6:6",5",10":4',5',6']diisoquino[2,1-a: 2',1'-a']diperimidine-12,25-dione, with cis isomer (CAS 6859-32-1)
Recommended Standards
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- 5-Bromo-6-(trifluoromethyl)-4-pyrimidinone (CAS 126538-81-6)
- Ethyl 4-[(2,4-dimethylphenyl)sulfanyl]-8-(trifluoromethyl)quinoline-3-carboxylate (CAS 477847-17-9)
- Esketamine Hydrochloride (CAS 33795-24-3)
- 2-((Trimethylsilyl)oxy)quinoline (CAS 52523-31-6)
- 2-Methyl-5,6,7,8-tetrahydroquinolin-4-amine (CAS 22345-79-5)
- N-(4-((thiophen-2-ylmethyl)amino)phenyl)acetamide (CAS 18210-26-9)
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