Tacrolimus 21-Carboxy Acid CAS CATO-C4X-130029
| CAS No. | CATO-C4X-130029 |
| Molecular Formula | C44H71NO13 |
| Molecular Weight | 822.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Tacrolimus 21-Carboxy Acid (C44H71NO13) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 822.03 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Tacrolimus 21-Carboxy Acid (CAS CATO-C4X-130029) is a high-purity analytical reference standard with the molecular formula C44H71NO13 and a molecular weight of 822.03 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C44H71NO13 |
| Molecular Weight | 822.03 g/mol |
| Purity | 97%+ |
| 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 Hydroxy Acid Impurity (CAS 1700657-83-5)
- Tacrolimus impurity 65 (CAS CATO-C4X-130065)
- Tacrolimus impurity 69 (CAS CATO-C4X-130069)
- Tacrolimus impurity 70 (CAS CATO-C4X-130070)
- Tacrolimus impurity 66 (CAS CATO-C4X-130066)
- Tacrolimus impurity 62 (CAS CATO-C4X-130062)
- Tacrolimus Methyl Ether (CAS 124554-16-1)
- Tacrolimus Impurity 39 (CAS CATO-C4X-130039)
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Why CATO?
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