12H-Benzo[4,5]thieno[2,3-a]carbazole CAS 222-21-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 222-21-9 |
| Molecular Formula | C18H11NS |
| Molecular Weight | 273.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 12H-Benzo[4,5]thieno[2,3-a]carbazole (CAS 222-21-9) pharmaceutical standards reference standard. Molecular formula: C18H11NS. Molecular weight: 273.35 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C18H11NS |
| Molecular Weight | 273.35 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related H Standards
- 5H-Benzo[4,5]thieno[3,2-c]carbazole (CAS 1255308-97-4)
- 7H-benzo[4,5]thieno[2,3-b]carbazole (CAS 1255309-04-6)
- 12H-benzo[4,5]thieno[3,2-a]carbazole (CAS 206447-68-9)
- (E)-3-(benzo[d][1,3]dioxol-5-yl)-1-(4-methylpiperidin-1-yl)prop-2-en-1-one (CAS 290835-22-2)
- 1-(Benzo[d]thiazol-2-yl)-3,5-dimethyl-1H-pyrazole-4-carboxylic acid (CAS 1255783-76-6)
- 2-(1H-Benzo[d]imidazol-2-yl)ethyl thiazole-4-carboxylate (CAS 189438-52-6)
- Benzo[1,3]dioxol-5-ylmethyl-[2-(2-fluoro-phenyl)-ethyl]-amine (CAS 331970-58-2)
- (1H-benzo[d][1,2,3]triazol-1-yl)(naphthalen-1-yl)methanone (CAS 306990-95-4)
Recommended Standards
- 1-(Pyridin-4-ylmethyl)-4-thioxo-3,4,5,6,7,8-hexahydroquinazolin-2(1H)-one (CAS 920158-95-8)
- 1-(Pyridin-2-ylmethyl)-4-thioxo-3,4,5,6,7,8-hexahydroquinazolin-2(1H)-one (CAS 920158-88-9)
- 1-ethyl-7-methyl-4-oxo-2-sulfanyl-1H,4H-pyrido[2,3-d]pyrimidine-5-carboxylic acid (CAS 938002-52-9)
- 3-((3,4-Dichlorobenzyl)thio)-4-methyl-5-(2-methylfuran-3-yl)-4H-1,2,4-triazole (CAS 868269-30-1)
- 6-Fluorobenzo[d]thiazole-4-carboxylic acid (CAS 1346817-42-2)
- 2-(3-Ethylphenyl)pyrrolidine (CAS 1270480-16-4)
- 3-Propylcyclopent-2-enone (CAS 35953-18-5)
- Benzyl 3-oxo-1,8-dioxa-4,11-diazaspiro[5.6]dodecane-11-carboxylate (CAS 1251020-98-0)
- 3-(methoxymethyl)-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyrazine (CAS 1159553-52-2)
- Semaglutide Impurity 177 (CAS CATO-C4X-2226177)
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 13829788188 / jacky.chen@cato-chem.com