Tacrolimus Impurity 2 (Discontinue) CAS CATO-C4X-13002
| CAS No. | CATO-C4X-13002 |
| Molecular Formula | C43H69NO11 |
| Molecular Weight | 776.01 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Tacrolimus Impurity 2 (Discontinue) 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.
CATO supplies Tacrolimus Impurity 2 (Discontinue) (CAS CATO-C4X-13002), a pharmacopoeial impurity reference standard (molecular formula C43H69NO11, MW 776.01 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Tacrolimus Impurity 2 (Discontinue) (C43H69NO11) 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 776.01 g/mol, it falls into the high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C43H69NO11 |
| Molecular Weight | 776.01 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 EP Impurity H (CAS 143210-33-7)
- Tacrolimus Impurity 31 (CAS 123719-19-7)
- Tacrolimus impurity 48 (CAS CATO-C4X-130048)
- Tacrolimus impurity 72 (CAS CATO-C4X-130072)
- Tacrolimus Impurity 52 (CAS CATO-C4X-130052)
- Tacrolimus Impurity 3 (CAS CATO-C4X-13003)
- Tacrolimus EP Impurity I (CAS 104987-16-8)
- Tacrolimus Impurity 54 (CAS CATO-C4X-130054)
Recommended Standards
- Semaglutide impurity 274 (CAS CATO-C4X-2226274)
- Erythromycin estolate Impurity G (CAS 147702-49-6)
- Pimecrolimus Impurity 22 (CAS 137712-89-1)
- (R,R)-Indacaterol Impurity 25 (CAS 753498-27-0)
- Pazufloxacin Impurity 23 (CAS CATO-C4X-233223)
- Anastrozole Impurity 37 (CAS CATO-C4X-123937)
- Semaglutide impurity 58 (CAS CATO-C4X-222658)
- 4-Amino-N-(1-ethylpyrrolidin-2-ylidene)benzenesulfonamide (CAS 126826-50-4)
- (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)-4-(((2S,3R,4S,5R,6R)-3,4,5-triacetoxy-6-(acetoxymethyl)tetrahydro-2H-pyran-2-yl)oxy)tetrahydro-2H-pyran-2,3,5-triyl triacetate (CAS 22551-65-1)
- 7-Chloro-6-ethyl-5-methyl-6,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 65768-21-0)
- 2-(2-Methylphenoxy)-N-(2-thienylmethyl)-1-ethanamine (CAS 1040687-03-3)
- 2-Isocyanato-2,3-dihydro-1-benzofuran (CAS 1016738-92-3)
- 2-(4-Bromophenyl)-2-methylpropionitrile (CAS 101184-73-0)
- Insulin Degludec Impurity 7 (CAS CATO-C4X-21577)
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