Erlotinib Impurity 75 CAS CATO-C4X-106975
| CAS No. | CATO-C4X-106975 |
| Molecular Formula | C28H34N4O9 |
| Molecular Weight | 570.59 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Erlotinib Impurity 75 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.
CATO supplies Erlotinib Impurity 75 (CAS CATO-C4X-106975), a pharmacopoeial impurity reference standard (molecular formula C28H34N4O9, MW 570.59 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Erlotinib Impurity 75 (C28H34N4O9) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 570.59 g/mol, it falls into the moderately-high-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.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C28H34N4O9 |
| Molecular Weight | 570.59 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Erlotinib Standards
- Erlotinib Impurity 76 (CAS CATO-C4X-106976)
- Erlotinib Impurity 90 (CAS 1809951-10-7)
- Erlotinib Impurity 14 (CAS CATO-C4X-106914)
- Erlotinib Impurity 5 (CAS 328528-74-1)
- Erlotinib Impurity 48 (CAS 2055840-54-3)
- ErlotiniB impurity 37 (CAS CATO-C4X-106937)
- Erlotinib Impurity 7 (CAS 882420-21-5)
- Erlotinib impurity 137 (CAS 1318599-96-0)
Recommended Standards
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- Oxonol805blue (CAS 27969-56-8)
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- 706-07-0 Benzene, 1-chloro-4-(2-nitroethenyl)- (9CI) Styrene, p-chloro-beta-nitro- 3-05-00-01181 (Beilstein Handbook Reference) BRN 2208373 p-Chloro-beta-nitro-styrene 4-Chloro-beta-nitrostyrene p-Cloro-beta-nitrostirene [Italian] NSC 2547 p-Cloro-beta-nitrostirene (CAS 706-07-0)
- (1E,4E)-1-(dimethylamino)-5-(3-methoxyphenyl)penta-1,4-dien-3-one (CAS 886361-10-0)
- 1-([1,1'-Biphenyl]-4-ylthio)-5-(phenylthio)anthracene-9,10-dione (CAS 84674-81-7)
- Insulin aspart (CAS 116094-23-6)
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