Olaparib impurity 139 CAS 42086-73-7
| CAS No. | 42086-73-7 |
| Molecular Formula | C16H9NO2 |
| Molecular Weight | 247.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Olaparib impurity 139 (CAS 42086-73-7), a pharmacopoeial impurity reference standard (molecular formula C16H9NO2, MW 247.25 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Olaparib impurity 139 (C16H9NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 247.25 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Olaparib impurity 139 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 | C16H9NO2 |
| Molecular Weight | 247.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1969 |
| Nitrogen Atoms | 1 |
Related Olaparib Standards
- Olaparib Impurity 20 (CAS CATO-C4X-113520)
- Olaparib Impurity 92 (CAS CATO-C4X-113592)
- Olaparib Impurity 153 (CAS CATO-C4X-1135153)
- Olaparib Impurity 53 (CAS CATO-C4X-113553)
- Olaparib Impurity 30 (CAS 61260-15-9)
- Olaparib Impurity 61 (CAS 2558-18-1)
- Olaparib Impurity 26 (CAS 414910-15-9)
- Olaparib Impurity 137 (CAS CATO-C4X-1135137)
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- Methyl 2-amino-4-methylbenzo[d]thiazole-5-carboxylate (CAS 306276-71-1)
- tert-Butyl 5-(2,2,2-trifluoroacetyl)thiophene-2-carboxylate 1864060-79-6 (CAS 1864060-79-6)
- MOTS-c Peptide (CAS 1627580-64-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com