Erlotinib Impurity 40 CAS 591-19-5
| CAS No. | 591-19-5 |
| Molecular Formula | C6H6BrN |
| Molecular Weight | 172.02 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Erlotinib Impurity 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.
Erlotinib Impurity 40 (CAS 591-19-5) is a certified pharmaceutical impurity reference standard with the molecular formula C6H6BrN and a molecular weight of 172.02 g/mol.
Owing to a nitrile group, bromine substitution, an aromatic ring system, Erlotinib Impurity 40 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 172.02 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C6H6BrN |
| Molecular Weight | 172.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Erlotinib Standards
- Erlotinib Impurity 41 (CAS 69088-96-6)
- Erlotinib Impurity 104 (CAS CATO-C4X-1069104)
- Erlotinib Impurity 124 (CAS 7451-98-1)
- Erlotinib Impurity 84 (CAS 16064-15-6)
- Erlotinib Impurity 180 (CAS 127791-53-1)
- Erlotinib Impurity 112 (CAS 555-68-0)
- Erlotinib Impurity 123 (CAS 1145671-36-8)
- Erlotinib Impurity 87 (CAS CATO-C4X-106987)
Recommended Standards
- Vortioxetine Impurity 30 (CAS 615-36-1)
- Phloroglucinol Impurity 22 (CAS 106-40-1)
- 3-Bromo-5-methylpyridine (CAS 3430-16-8)
- Pirfenidone Impurity 42 (CAS 3510-66-5)
- Berberine Impurity 33 (CAS 100101-07-3)
- Landiolol Impurity 76 (CAS CATO-C4X-262176)
- Cephalexin Impurity 8 Mixture (CAS CATO-C4X-12618)
- (S)-2,6-Diaminohexan-1-ol dihydrochloride (CAS 1041055-24-6)
- 3-(2-Chlorophenyl)-6-(3-methylbenzyl)-[1,2,4]triazolo[4,3-a]pyridine (CAS 745827-01-4)
- 3-Ethylfuran-2,5-dione (CAS 14156-13-9)
- L-Phenylglycine Amide (CAS 6485-52-5)
- Q99HT08S5N 91-04-3 2,6-Dimethylol-p-cresol 1,3-Benzenedimethanol, 2-hydroxy-5-methyl- 3,5-Bis(hydroxymethyl)-p-cresol alpha1,alpha3-Mesitylenediol, 2-hydroxy- (8CI) alpha(sup 1),alpha(sup 3)-Mesitylenediol, 2-hydroxy- (7CI,8CI) 4-06-00-07411 (Beilstein Handbook Reference) 2,6-Bis(hydroxymethyl)-p-cresol 2,6-Bis(hydroxymethyl)-4-methylphenol BRN 1240237 2,6-Di(hydroxymethyl)-p-cresol 2,6-Dimethylol-4-methylphenol EINECS 202-036-4 2-Hydroxy-5-methyl-1,3-benzenedimethanol NSC 15838 alpha(sup 1),alpha(sup 3),2-Trihydroxymesitylene alpha1,alpha,2-Trihydroxymesitylene UNII-Q99HT08S5N (CAS 91-04-3)
- 11-Azatricyclo[7.3.1.02,7]trideca-2,4,6-triene-9-carboxylic acid ethyl ester 1250997-42-2 AM803089 (CAS 1250997-42-2)
- Liraglutide Impurity 28 (CAS CATO-C4X-199228)
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