Brimonidine Impurity 41 CAS CATO-C4X-156641
| CAS No. | CATO-C4X-156641 |
| Molecular Formula | C8H5Br2N3 |
| Molecular Weight | 302.95 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Brimonidine Impurity 41 (CAS CATO-C4X-156641), a pharmacopoeial impurity reference standard (molecular formula C8H5Br2N3, MW 302.95 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution, Brimonidine Impurity 41 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 302.95 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures Brimonidine Impurity 41 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.
Physical & Chemical Properties
| Molecular Formula | C8H5Br2N3 |
| Molecular Weight | 302.95 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Brimonidine Standards
- Brimonidine Impurity 38 (CAS CATO-C4X-156638)
- Brimonidine Impurity 39 (CAS CATO-C4X-156639)
- Brimonidine Impurity 13 (CAS 134892-42-5)
- Brimonidine-D4 (CAS 1184971-51-4)
- Brimonidine Impurity 17 (CAS 134862-75-2)
- Brimonidine Carbamothioate Impurity (CAS 842138-75-4)
- Brimonidine (CAS 59803-98-4)
- Brimonidine EP Impurity F (CAS 151110-15-5)
Recommended Standards
- 3-Bromo-2-iodo-5-methylthiophene (CAS 89556-08-1)
- 2,2,2-Trichloro-1-[4-(2-chloroacetyl)-1-methyl-1h-pyrrol-2-yl]ethan-1-one (CAS 875163-93-2)
- Isavuconazole Impurity 88 (CAS 21661-87-0)
- N-(2,3,5,6-Tetrachloro-4-methoxyphenyl)acetamide (CAS 77218-84-9)
- Otilonium Bromide Impurity 15 (CAS 26187-16-6)
- Acotiamide Impurity 3 (CAS 1824734-16-8)
- Difelikefalin Impurity 74 (CAS CATO-C4X-304174)
- 6-Methyl-2-(1H-pyrrol-1-yl)pyrimidin-4-ol (CAS 76178-97-7)
- Levofloxacin Impurity 32 (CAS 1329833-82-0)
- 4-(Chloromethyl)-N-methyl-1,3-thiazol-2-amine (CAS 37060-74-5)
- 5-(2-Ethoxyphenyl)-2-methyl-3-propyl-2,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (CAS 501120-40-7)
- 5-Cyanothiazole-4-carboxylic acid (CAS 1259077-53-6)
- rel-(3R,4R)-4-(4-Bromo-1H-pyrazol-1-yl)tetrahydro-3-furanol (CAS 2505079-00-3)
- Semaglutide impurity 229 (CAS CATO-C4X-2226229)
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