Tert-butyl 4-(3-benzamidothiophene-2-carbonyl)piperazine-1-carboxylate CAS 692738-33-3
| CAS No. | 692738-33-3 |
| Molecular Formula | C21H25N3O4S |
| Molecular Weight | 415.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Tert-butyl 4-(3-benzamidothiophene-2-carbonyl)piperazine-1-carboxylate (CAS 692738-33-3) is a high-purity analytical reference standard with the molecular formula C21H25N3O4S and a molecular weight of 415.51 g/mol.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Tert-butyl 4-(3-benzamidothiophene-2-carbonyl)piperazine-1-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 415.51 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C21H25N3O4S |
| Molecular Weight | 415.51 g/mol |
| Purity | 97%+ |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- N-Benzyl-5-methanesulfonyl-N,2-diphenylpyrimidin-4-amine (CAS 478080-89-6)
- Carbamazepine Impurity 6 (CAS 40421-03-2)
- N'-(4-methylbenzoyl)-1-tosylpiperidine-4-carbohydrazide (CAS 478030-15-8)
- Quetiapine Impurity 35 (CAS 329216-65-1)
- 2-(4-Oxoquinazolin-3(4H)-yl)acetic acid, 97% (CAS 14663-53-7)
- 3-Methyl-1-[2-(methylamino)ethyl]-1,2-dihydroquinoxalin-2-one dihydrochloride (CAS 1432681-03-2)
- 1-Oxo-1-phenylbutan-2-yl 6-bromo-2-phenylquinoline-4-carboxylate (CAS 355429-39-9)
- 5503-75-3 (5Z)-5-(2-Bromobenzylidene)-2-thioxo-1,3-thiazolidin-4-one MFCD01471106 (CAS 5503-75-3)
- 2-Nitro-5-(trifluoromethyl)phenylacetic Acid (CAS 927801-01-2)
- Ethyl 4-(chloromethyl)-3-methyl-6-oxo-6h,7h-thieno[2,3-b]pyridine-2-carboxylate (CAS 923229-48-5)
- 5-Acetamido-2-aminobenzoic acid (CAS 50670-83-2)
- 4-Allyl-5-(5-isopropylthiophen-3-yl)-4H-1,2,4-triazole-3-thiol (CAS 861226-49-5)
- 5-Methyl-2-(pentyloxy)benzoyl chloride (CAS 1443313-50-5)
- ([D?]Val?·1?)-C-Peptide (human) (CAS 1802078-41-6)
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