CK-666, >98% CAS 442633-00-3
| CAS No. | 442633-00-3 |
| Molecular Formula | C18H17FN2O |
| Molecular Weight | 296.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), CK-666, >98% 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.
CATO supplies CK-666, >98% (CAS 442633-00-3), a certified reference material (molecular formula C18H17FN2O, MW 296.34 g/mol) for analytical method development and quality control.
Based on its molecular formula C18H17FN2O, CK-666, >98% contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 296.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C18H17FN2O |
| Molecular Weight | 296.34 g/mol |
| Appearance | Pale yellow to 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- 7-Methyl-4-oxo-2-(phenylthio)-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde (CAS 306281-30-1)
- Ethyl 4-(3-(ethoxycarbonyl)thioureido)benzoate (CAS 412912-51-7)
- 6-Ethoxy-5-(ethoxycarbonyl)-6-oxohexane-1-sulfonic acid (CAS 5324-63-0)
- Methyl 1-isopropyl-3,6-dimethyl-2,4-dioxo-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidine-5-carboxylate (CAS 491614-26-7)
- 2-(Benzo[d]thiazol-2-ylthio)-N-(2-(3-(furan-2-yl)-6-oxopyridazin-1(6H)-yl)ethyl)acetamide (CAS 1207007-45-1)
- Methyl 3-chloro-4-methoxypicolinate (CAS 1256807-80-3)
- 2,3-Dimethoxy-1,3-butadiene 3588-31-6 rans,trans-1,3-Butadiene-1,4-dicarboxylic acid trans,trans-2,4-Hexadienedioic acid (CAS 3588-31-6)
- 4-Epialyxialactone (CAS 132339-37-8)
- 1-Ethyl-2,3,4,5-tetrahydro-1H-1-benzazepin-5-one (CAS 1596719-99-1)
- 2-(1H-Indol-1-yl)-1-(4-(pyrimidin-2-yl)piperazin-1-yl)ethan-1-one (CAS 1207050-66-5)
- 6-Bromo-3-(1-methyl-1H-pyrazol-4-yl)-5-(3R)-3-piperidinylpyrazolo[1,5-α]pyrimidin-7-amine (CAS 891494-63-6)
- 2-(4-Isopropoxyphenyl)-5-(2-oxo-1-propylindolin-3-ylidene)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one (CAS 371130-01-7)
- 2-Furan-2-yl-6-methyl-pyrimidin-4-ylamine (CAS 27130-89-8)
- ([13C6]Leu14)-Glucagon (1-29) (human, rat, porcine) trifluoroacetate salt (CAS 1802078-39-2)
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