FK-506-13C,D4 (Major) (Tacrolimus) CAS CATO-C4X-130063
| CAS No. | CATO-C4X-130063 |
| Molecular Formula | C43[13C]H65D4NO12 |
| Molecular Weight | 809.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
FK-506-13C,D4 (Major) (Tacrolimus) (CAS CATO-C4X-130063), molecular formula C43[13C]H65D4NO12 and molecular weight 809.04 g/mol, is a CATO reference standard with documented purity and traceability.
FK-506-13C,D4 (Major) (Tacrolimus) (C43[13C]H65D4NO12) contains deuterium isotope labeling, a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), FK-506-13C,D4 (Major) (Tacrolimus) meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C43[13C]H65D4NO12 |
| Molecular Weight | 809.04 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Recommended Standards
- FK-506-13C,D4 (Major) (Tacrolimus) (CAS CATO-C4X-130060)
- Lovastatin EP Impurity D (Lovastatin Dimer) (CAS 149756-62-7)
- PDNHV (CAS 251362-87-5)
- Iomeprol Impurity 21 (CAS CATO-C4X-182021)
- 1-(2-Hydroxy-3,5-dimethylphenyl)-2-phenylethanone (CAS 93433-76-2)
- 2-(3-Methoxyphenyl)oxazolo[4,5-b]pyridine (CAS 52333-61-6)
- 1-(Morpholin-3-yl)ethan-1-ol (CAS 2103954-12-5)
- C-(5-Pyridin-2-yl-thiophen-2-yl)-methylamine (CAS 306934-92-9)
- Baloxavir Marboxil Impurity 171 (CAS CATO-C4X-2108171)
- N-(Isoxazolo[5,4-b]pyridin-3-yl)-3,4-dimethoxybenzamide (CAS 1105206-63-0)
- (5-(2-Methoxyphenyl)-1,3,4-oxadiazol-2-yl)methanamine (CAS 944897-80-7)
- N-(7-Hydroxyheptyl)acetamide (CAS 89644-52-0)
- 4-(Prop-2-yn-1-yl)piperidin-4-ol (CAS 1742-70-7)
- Semaglutide（sodium salt） (CAS CATO-C4X-222619)
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