Tofacitinib Citrate CAS 540737-29-9
| CAS No. | 540737-29-9 |
| Molecular Formula | C16H20N6O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Tofacitinib Citrate (C16H20N6OC6H8O7) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 504.50 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO supplies Tofacitinib Citrate (CAS 540737-29-9), a certified reference material (molecular formula C16H20N6OC6H8O7, MW 504.50 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Tofacitinib Citrate 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 | C16H20N6O C6H8O7 |
| Molecular Weight | 504.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 6 |
Related Tofacitinib Standards
- Tofacitinib Impurity 180 (CAS 100047-45-8)
- Tofacitinib Impurity 133 (CAS 10132-07-7)
- Tofacitinib Impurity 182 (CAS 1053228-28-6)
- Tofacitinib Impurity 123 DiHCl (CAS 1062580-52-2)
- Tofacitinib Impurity 20 (CAS 1092578-43-2)
- Tofacitinib Impurity 38 (CAS 1092578-45-4)
- Tofacitinib Impurity 1 (CAS 1092578-46-5)
- Tofacitinib Impurity 3 (CAS 1092578-47-6)
Recommended Standards
- (7aR)-3-(Trichloromethyl)tetrahydropyrrolo[1,2-c]oxazol-1(3H)-one (CAS 1263774-42-0)
- 6-Bromo-2-methyl-2H-indazole-3-carboxylic Acid (CAS 1021859-33-5)
- 4-(Quinolin-5-yl)pyrimidine-2-thiol (CAS 1330752-71-0)
- [1-(3,4-dichlorobenzoyl)-4-fluoro-4-piperidinyl]methyl 4-fluorobenzenesulfonate (CAS 477857-55-9)
- 1236266-39-9 2-Amino-1-(4-benzyl-1-piperazinyl)-3-phenyl-1-propanone hydrochloride 2916AD C20H26ClN3O (CAS 1236266-39-9)
- 2-amino-3-(4-methylphenyl)propan-1-ol hydrochloride (CAS 1380002-76-5)
- Shi Epoxidation Diketal Catalyst (CAS 18422-53-2)
- N-(3-chlorophenyl)-4,5-dihydro-1h-imidazol-2-amine (CAS 56457-24-0)
- 3-(Bromomethyl)-4-methoxyphenyl acetate (CAS 81860-94-8)
- Mast Cell Degranulating (MCD) Peptide HR-2 (CAS 80388-04-1)
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