Formoterol Impurity 29 CAS 43229-67-0
| CAS No. | 43229-67-0 |
| Molecular Formula | C32H34N2O5 |
| Molecular Weight | 526.62 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Formoterol Impurity 29 (C32H34N2O5) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 17.0, corresponding to approximately 17 ring(s) or double-bond equivalent(s). With a molecular weight of 526.62 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Formoterol Impurity 29 (CAS 43229-67-0), a pharmacopoeial impurity reference standard (molecular formula C32H34N2O5, MW 526.62 g/mol) used for the identification and quantification of trace impurities in APIs.
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 manufactures Formoterol Impurity 29 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 | C32H34N2O5 |
| Molecular Weight | 526.62 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Nitrogen Atoms | 2 |
Related Formoterol Standards
- Formoterol impurity 122 (CAS 143687-25-6)
- Formoterol Impurity N1 (CAS 43229-66-9)
- Formoterol impurity 143 (CAS CATO-C4X-1525143)
- rac Formoterol 1-O-β-D-Glucuronide (CAS 250336-07-3)
- Formoterol Impurity 14 (CAS 615551-59-2)
- Formoterol Impurity 16 (CAS CATO-C4X-152516)
- Formoterol Impurity 25 (CAS CATO-C4X-152525)
- Formoterol Impurity 76 (CAS CATO-C4X-152576)
Recommended Standards
- 32-Azido-3,6,9,12,15,18,21,24,27,30-decaoxadotriacontan-1-amine 912849-73-1 Azido-PEG-amine (n=10) O-(2-Aminoethyl)-O inverted exclamation marka-(2-azidoethyl)nonaethylene glycol O-(2-Aminoethyl)-O-(2-azidoethyl)nonaethylene Glycol (CAS 912849-73-1)
- Ganosporeric acid A (CAS 135357-25-4)
- Tetrahydro-11-deoxy Cortisol 3-O-beta-D-Glucuronide (CAS 56162-40-4)
- Fmoc-Ser(tBu)-Ser(tBu) -OH (CAS 110098-50-5)
- Choline impurity 1 (CAS 92442-84-7)
- Aztreonam impurity 72 (CAS CATO-C4X-152272)
- Bilastine Impurity 12 HCl (CAS 2099128-83-1(Free base))
- 2-(3-Amino-2-(difluoromethyl)benzoyl)pyridine (CAS 1261800-51-4)
- 5-Hydroxy-1,3-dimethylquinoxalin-2(1H)-one (CAS 184423-25-4)
- Epinephrine /Adrenaline Impurity 131 (CAS CATO-C4X-1849131)
- 4-(Methoxymethyl)tetrahydro-2h-pyran-4-amine hydrochloride (CAS 1029716-11-7)
- Rel-(2S,3R)-1-(benzyloxy)-5-(tert-butyldimethylsilyl)-2-methylpentane-2,3-diol (CAS 1797102-40-9)
- 2,2,2-Trifluoro-1-{1-[(4-methoxyphenyl)sulfonyl]-1H-pyrrolo[2,3-b]pyridin-3-yl}-1-ethanone (CAS 860651-25-8)
- Semaglutide impurity 255 (CAS CATO-C4X-2226255)
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