EEDQ CAS 16357-59-8
| CAS No. | 16357-59-8 |
| Molecular Formula | C14H17NO3 |
| Molecular Weight | 247.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including EEDQ.
CATO supplies EEDQ (CAS 16357-59-8), a certified reference material (molecular formula C14H17NO3, MW 247.29 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, EEDQ is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 247.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C14H17NO3 |
| Molecular Weight | 247.29 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 1 |
Recommended Standards
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- tert-butyl N-[(3S)-6-(N-hydroxycarbamimidoyl)-2,3-dihydrobenzofuran-3-yl]carbamate (CAS 2364560-70-1)
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- 1-(2-Ethyl-6-methylphenyl)-1H-pyrrole (CAS 918667-49-9)
- 1-methyl-2-(pyrrolidin-2-yl)cyclohexan-1-ol (CAS 1803604-15-0)
- Methyl 6-(3-Methoxyphenyl)nicotinate (CAS 869985-47-7)
- 3-Fluoro-3-(3-pyrrolinomethyl) benzophenone (CAS 898790-07-3)
- methyl 7-aminothieno[2,3-c]pyridine-3-carboxylate (CAS 2306272-49-9)
- Peptide Impurity 24 (CAS CATO-CPTD788824)
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