Tofacitinib Impurity 161 CAS 1638499-36-1
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 1638499-36-1 |
| Molecular Formula | C15H20N2O |
| Molecular Weight | 244.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Tofacitinib Impurity 161 (CAS 1638499-36-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C15H20N2O. Molecular weight: 244.33 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C15H20N2O |
| Molecular Weight | 244.33 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 2 |
Related Tofacitinib Standards
- Tofacitinib Impurity N2 (CAS 1206825-36-6)
- Tofacitinib Impurity 10 (CAS 2097982-05-1)
- Tofacitinib Impurity 227 (CAS CATO-C4X-1079227)
- Tofacitinib Impurity 41 (CAS CATO-C4X-107941)
- Tofacitinib Impurity 42 (CAS CATO-C4X-107942)
- Tofacitinib Impurity 6 (CAS 477600-74-1)
- Tofacitinib Impurity 72 (CAS 1260614-73-0)
- Tofacitinib Impurity N1 (CAS 1782226-06-5)
Recommended Standards
- 5BH27U8GG4 6425-39-4 Dimorpholinodiethyl ether 2,2'-Dimorpholinyldiethyl ether Morpholine, 4,4'-(oxydi-2,1-ethanediyl)bis- Bis(morpholinoethyl)ether 2,2'-Dimorpholinodiethyl ether EINECS 229-194-7 Morpholine, 4,4'-(oxydiethylene)di- NSC 28749 4,4'-(Oxydiethylene)bis(morpholine) UNII-5BH27U8GG4 EC 229-194-7 (CAS 6425-39-4)
- Valproate Impurity 37 (CAS 62391-98-4)
- 52932-74-8 C15H20N2O Neosophoramine W1027 (CAS 52932-74-8)
- Canagliflozin Impurity 79 (CAS 2265214-90-0)
- Prilocaine EP Impurity F HCl (CAS 13327-14-5)
- Ethyl 3-carbamoyl-2-(5-nitrothiophene-2-carboxamido)-4,7-dihydrothieno[2,3-c]pyridine-6(5H)-carboxylate (CAS 864925-73-5)
- Letermovir Impurity 91 (CAS CATO-C4X-291591)
- N-(6-Formyl-4-oxo-1,4-dihydropyrido[2,3-d]pyrimidin-2-yl)acetamide (CAS 87373-56-6)
- 2-((2-((4-(4-Chlorophenyl)thiazol-2-yl)amino)-2-oxoethyl)thio)acetic acid (CAS 477867-80-4)
- (D-His1)-Exenatide trifluoroacetate salt (CAS 1678417-09-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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