QO-40 CAS 1259536-70-3
| CAS No. | 1259536-70-3 |
| Molecular Formula | C18H11ClF3N3O |
| Molecular Weight | 377.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures QO-40 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
QO-40 (CAS 1259536-70-3), molecular formula C18H11ClF3N3O and molecular weight 377.75 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of QO-40 (C18H11ClF3N3O) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine 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.
Physical & Chemical Properties
| Molecular Formula | C18H11ClF3N3O |
| Molecular Weight | 377.75 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- 4-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-N-(pyridin-3-yl)benzamide (CAS 1092343-66-2)
- 2-(1-(2-Chloroacetyl)-3-oxopiperazin-2-yl)-N-(3-(trifluoromethyl)phenyl)acetamide (CAS 1306738-22-6)
- 4-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-N-(pyridin-2-yl)benzamide (CAS 1092343-62-8)
- 5-(((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)amino)methyl)-N-((dimethylamino)methylene)-4,5-dihydroisoxazole-3-carboxamide (CAS 321432-30-8)
- 4-Ethyl-n-methyl-1,3-thiazol-2-amine (CAS 167684-00-6)
- 3-Methyl-1H-pyrazolo[4,3-e][1,2,4]triazin-5-amine (CAS 905754-05-4)
- 3,5-Dichloro-2-fluoroisonicotinic acid (CAS 406676-19-5)
- (3S)-3-((4-fluorophenyl)sulfinyl)pyrrolidine hydrochloride (CAS 1354025-28-7)
- (E)-2-(3-((3-bromophenyl)amino)-1-(dimethylamino)allylidene)malononitrile (CAS 339102-35-1)
- 2-Amino-N-(2,3-dichlorobenzyl)-N-methylacetamide (CAS 1179904-56-3)
- 4-(Fluoromethyl)-1,3-thiazol-2-amine (CAS 1174229-34-5)
- Trans-2,6-dimethyl-1,2,3,4-tetrahydroquinolin-4-ol (CAS 26344-24-1)
- (5-(Dimethylamino)pyridin-3-yl)boronic acid (CAS 1018680-09-5)
- Calcitonin N-Terminal Flanking Peptide (human) (CAS 118277-01-3)
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