Topiroxostat Impurity 1 CAS 3783-38-8
| CAS No. | 3783-38-8 |
| Molecular Formula | C7H7NO3 |
| Molecular Weight | 153.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Topiroxostat Impurity 1 (CAS 3783-38-8), a pharmacopoeial impurity reference standard (molecular formula C7H7NO3, MW 153.14 g/mol) used for the identification and quantification of trace impurities in APIs.
Topiroxostat Impurity 1 (C7H7NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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.
CATO manufactures Topiroxostat Impurity 1 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 | C7H7NO3 |
| Molecular Weight | 153.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Related Topiroxostat Standards
- Topiroxostat Impurity 5 (CAS 6975-73-1)
- Topiroxostat Impurity 66 (CAS 159890-49-0)
- Topiroxostat Impurity 45 (CAS 161233-97-2)
- Topiroxostat Impurity 51 (CAS 98273-47-3)
- Topiroxostat Impurity 12 (CAS 94413-64-6)
- Topiroxostat Impurity 13 (CAS 135048-32-7)
- Topiroxostat Impurity 40 (CAS 1824131-48-7)
- Topiroxostat Impurity 41 (CAS CATO-C4X-105541)
Recommended Standards
- N4-Acetylcytosine (CAS 14631-20-0)
- 2-amino-6-hydroxybenzoic acid (CAS 567-62-4)
- Lansoprazole Impurity 11 (CAS 1329838-16-5)
- 3-Nitrobenzyl Alcohol (CAS 619-25-0)
- Azilsartan impurity 146 (CAS CATO-C4X-1096146)
- Tegoprazan Impurity 117 (CAS CATO-C4X-2297117)
- Vonoprazan Fumarate Impurity 118 (CAS CATO-C4X-1020118)
- 4-(3-Hydroxyphenoxy)benzonitrile (CAS 1183032-44-1)
- 2-(Trifluoromethoxy)pyridin-3-ol (CAS 1361836-59-0)
- 6-Methyl-1H-pyrrolo[2,3-b]pyridin-5-ol (CAS 1000340-88-4)
- 2-((1H-1,2,4-triazol-5-yl)thio)-N'-hydroxyacetimidamide (CAS 61691-01-8)
- 2-Chloro-N-(5-methylthiazol-2-yl)acetamide (CAS 575497-12-0)
- Rocuronium Impurity 45 (CAS CATO-C4X-124245)
- Acetyl-Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 2022956-56-3)
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