5-Amino-1-(phenylsulfonyl)-1H-pyrazol-3-yl 4-(tert-butyl)benzoate CAS 442678-87-7
| CAS No. | 442678-87-7 |
| Molecular Formula | C20H21N3O4S |
| Molecular Weight | 399.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-Amino-1-(phenylsulfonyl)-1H-pyrazol-3-yl 4-(tert-butyl)benzoate (CAS 442678-87-7), molecular formula C20H21N3O4S and molecular weight 399.46 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H21N3O4S, 5-Amino-1-(phenylsulfonyl)-1H-pyrazol-3-yl 4-(tert-butyl)benzoate contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 399.46 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 5-Amino-1-(phenylsulfonyl)-1H-pyrazol-3-yl 4-(tert-butyl)benzoate 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 | C20H21N3O4S |
| Molecular Weight | 399.46 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 2-Amino-6-benzyl-4-(4-methoxyphenyl)-7-methyl-5-oxo-5,6-dihydro-4H-pyrano[3,2-c]pyridine-3-carbonitrile (CAS 265315-83-1)
- 1-(2-Amino-6,7-dihydrothiazolo[5,4-c]pyridin-5(4H)-yl)-2-(5-ethyl-3-(4-fluoro-3-methylphenyl)-1H-pyrazol-1-yl)ethanone (CAS 1440951-60-9)
- 1-(4-Amino-phenyl)-4-Fmoc-piperazine (CAS 412331-98-7)
- (S)-6-Amino-2-((S)-1-((S)-2-amino-5-guanidinopentanoyl)pyrrolidine-2-carboxamido)hexanoic acid (CAS 69355-87-9)
- 3-Amino-4-(4-bromophenoxy)-n,n-diethylbenzene-1-sulfonamide (CAS 735322-73-3)
- 1-(2-Amino-4-chloro-5-iodophenyl)-2-(3,5-dimethylphenyl)ethan-1-one (CAS 1352723-53-5)
- (S)-2-amino-3-(4-((1,1,1,3,3,3-hexafluoro-2-(trifluoromethyl)propan-2-yl)oxy)phenyl)propanoic acid (CAS 1622172-73-9)
- 2-Amino-3-(4-(4-hydroxyphenoxy)-3-iodophenyl)propanoic acid (CAS 16170-92-6)
Recommended Standards
- 5-(3,4-Dimethoxyphenyl)-2-(piperidin-1-yl)-[1,3]thiazolo[4,5-b]pyridine-7-carboxylic acid (CAS 852388-76-2)
- BMS 270394 (CAS 262433-54-5)
- 4-Methoxy-N-(3-{7-thia-2,5-diazatricyclo[6.4.0.0^{2,6}]dodeca-1(8),3,5,9,11-pentaen-4-yl}phenyl)benzamide (CAS 685107-39-5)
- Ethyl 2-{[5-(3,4-dimethoxyphenyl)-4-phenyl-4h-1,2,4-triazol-3-yl]sulfanyl}acetate (CAS 91759-72-7)
- (2-Methoxy-1-methylethyl)(4-nitrobenzyl)amine hydrobromide (CAS 1609400-13-6)
- 2-[4-(4-methylphenoxy)phenyl]ethan-1-amine hydrochloride (CAS 1423031-00-8)
- 8-Amino-2-chloroquinoline (CAS 7461-11-2)
- 2-Bromo-6-methoxyphenol (CAS 28165-49-3)
- 2-Cyanophenylboronic Acid Pinacol Ester (CAS 214360-48-2)
- 1-(5-Amino-2-fluoro-4-methylphenyl)ethanone hydrochloride (CAS 1363404-68-5)
- 2-methoxy-6-methylpyridin-3-ol (CAS 289688-87-5)
- 3-Cyclopropoxy-4-isopropyl-N-methylpyridin-2-amine (CAS 1243466-45-6)
- 4-[3-(3-Methylphenyl)-1,2,4-oxadiazol-5-yl]-3-(methylsulfanyl)-1H-pyrazol-5-amine (CAS 1188304-91-7)
- Peptide Impurity 06 (CAS CATO-CPTD788806)
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