Bupivacaine Impurity 44 CAS 104485-01-0
| CAS No. | 104485-01-0 |
| Molecular Formula | C22H34N2O3 |
| Molecular Weight | 374.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Bupivacaine Impurity 44 (CAS 104485-01-0), a pharmacopoeial impurity reference standard (molecular formula C22H34N2O3, MW 374.52 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Bupivacaine Impurity 44 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 374.52 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures Bupivacaine Impurity 44 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 | C22H34N2O3 |
| Molecular Weight | 374.52 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 95 |
| Storage | Store at 2-8°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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
Related Bupivacaine Standards
- Bupivacaine Impurity 45 (CAS CATO-C4X-148245)
- Bupivacaine-d9 N-Oxide (CAS 1346598-03-5)
- Bupivacaine Impurity N1 (CAS 51989-47-0)
- Bupivacaine N-Oxide (CAS 1346597-81-6)
- Bupivacaine Impurity 17 (CAS CATO-C4X-148217)
- Bupivacaine-d9 (CAS 474668-57-0)
- Bupivacaine EP Impurity E (CAS 1330172-81-0)
- Bupivacaine Impurity 39 (CAS CATO-C4X-148239)
Recommended Standards
- Rosuvastatin Impurity 190 (CAS CATO-C4X-1169190)
- Tin(II) iodide (CAS 10294-70-9)
- Rosuvastatin Impurity 189 (CAS CATO-C4X-1169189)
- (trans,trans)-4-Fluorophenyl 4'-pentyl-[1,1'-bi(cyclohexane)]-4-carboxylate (CAS 88878-50-6)
- Dyclonine Impurity 3 (CAS CATO-C4X-18813)
- Dolutegravir Impurity 4 (CAS 1357289-37-2)
- Tofacitinib Impurity 228 (CAS CATO-C4X-1079228)
- 63696-99-1 ethyl (2S)-2-methylsulfonyloxypropanoate DTXSID80422842 (CAS 63696-99-1)
- 4-methyl-2,3-dihydro-1H-pyrido[2,3-b]pyrazine (CAS 928118-20-1)
- 1-Phenylundecan-1-one (CAS 4433-30-1)
- tert-Butyl 4-chloro-5-methoxypyridin-3-ylcarbamate (CAS 1045858-17-0)
- tert-Butyl n-(3-chlorophenyl)-n-methylcarbamate (CAS 1384312-79-1)
- Bis(1-(pyridin-3-yl)piperidin-2-yl)methane (CAS 370582-57-3)
- Palmitoyl Hexapeptide-12 TFA salt (CAS 171263-26-6(Free Base))
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