Tacrolimus Impurity 42 CAS CATO-C4X-130042
| CAS No. | CATO-C4X-130042 |
| Molecular Formula | C46H75NO13 |
| Molecular Weight | 850.09 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C46H75NO13, Tacrolimus Impurity 42 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 850.09 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Tacrolimus Impurity 42 (CAS CATO-C4X-130042), a pharmacopoeial impurity reference standard (molecular formula C46H75NO13, MW 850.09 g/mol) used for the identification and quantification of trace impurities in APIs.
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 Tacrolimus Impurity 42 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 | C46H75NO13 |
| Molecular Weight | 850.09 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Tacrolimus Standards
- Tacrolimus Impurity 40 (CAS CATO-C4X-130040)
- Tacrolimus Impurity 41 (CAS CATO-C4X-130041)
- Tacrolimus impurity 49 (CAS CATO-C4X-130049)
- Tacrolimus impurity 50 (CAS CATO-C4X-130050)
- Tacrolimus Hydroxy Acid Impurity (CAS 1700657-83-5)
- Tacrolimus 21-Carboxy Acid (CAS CATO-C4X-130029)
- Tacrolimus impurity 65 (CAS CATO-C4X-130065)
- Tacrolimus impurity 69 (CAS CATO-C4X-130069)
Recommended Standards
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- Fentanyl EP Impurity H (CAS CATO-C4X-134613)
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- (S)-3-(2-Fluoro-6-nitrophenoxy)pyrrolidine hydrochloride (CAS 1286209-33-3)
- 3-Chloro-1-((4-methylpiperazin-1-yl)methyl)-5-nitro-1H-indazole (CAS 89331-89-5)
- 3,6-Dinitro-1H-indazole (CAS 31163-64-1)
- n,5,7-Trimethylpyrazolo[1,5-a]pyrimidine-3-carboxamide (CAS 1380717-12-3)
- Tirzepatide Impurity 46 (CAS CATO-C4X-324046)
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