Tofacitinib Impurity 94 CAS CATO-C4X-107994
| CAS No. | CATO-C4X-107994 |
| Molecular Formula | C7H16N2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Tofacitinib Impurity 94 is closely related to chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Tofacitinib Impurity 94 (CAS CATO-C4X-107994), a pharmacopoeial impurity reference standard (molecular formula C7H16N2HCl, MW 164.68 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to chlorine substitution, Tofacitinib Impurity 94 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 164.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures Tofacitinib Impurity 94 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.
Physical & Chemical Properties
| Molecular Formula | C7H16N2 2*HCl |
| Molecular Weight | 164.68 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 0.0 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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
- Benzylpenicillin (Benzathine) Tetrahydrate EP Impurity A (CAS 4152-09-4)
- Ioversol Impurity 4 (CAS 2061892-21-3)
- Itraconazole N-Formyl-Ethlene Impurity (CAS 1199350-00-9)
- 1,1-Dimethylethyl N-[1-methyl-2-(4-morpholinyl)-2-oxoethyl]carbamate (CAS 796046-03-2)
- 3-Bromo-5-((4-fluoro-3-nitrophenyl)amino)-1-methylpyrazin-2(1H)-one (CAS CATO-CIM-105247)
- N-Cyclopropyl-3-methoxy-N-(thiophen-3-ylmethyl)benzamide (CAS 1234887-12-7)
- 6-(4-Methoxyphenyl)-2-methylimidazo[1,2-a]pyrazin-3(7H)-one (CAS 118877-07-9)
- Benzyl 4-(2-ethoxy-2-oxoethyl)-3,3-difluoropiperidine-1-carboxylate (CAS 1334417-71-8)
- N-(2-cyanophenyl)-2-((1-methyl-1H-imidazol-2-yl)thio)acetamide (CAS 329079-20-1)
- Semaglutide impurity 107 (CAS CATO-C4X-2226107)
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