1,1-Dimethylethyl 4-[5-[2-(4-aminophenyl)ethynyl]-2-pyridinyl]-1-piperazinecarboxylate CAS 2308497-20-1
| CAS No. | 2308497-20-1 |
| Molecular Formula | C22H26N4O2 |
| Molecular Weight | 378.47 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.
1,1-Dimethylethyl 4-[5-[2-(4-aminophenyl)ethynyl]-2-pyridinyl]-1-piperazinecarboxylate (CAS 2308497-20-1), molecular formula C22H26N4O2 and molecular weight 378.47 g/mol, is a CATO reference standard with documented purity and traceability.
1,1-Dimethylethyl 4-[5-[2-(4-aminophenyl)ethynyl]-2-pyridinyl]-1-piperazinecarboxylate (C22H26N4O2) contains a steroid core, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C22H26N4O2 |
| Molecular Weight | 378.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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.) | 1999 |
| Nitrogen Atoms | 4 |
Related Dimethylethyl Standards
- 1-(1,1-Dimethylethyl) 4-[5-carboxy-4-(trifluoromethyl)-2-thiazolyl]-1-piperazinecarboxylate (CAS 2060053-45-2)
- 3-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-1-propanol, 4nitrobenzenesulfonate (CAS 220299-14-9)
- 1,1-Dimethylethyl (1R,3R)-1-[[(R)-(1,1-dimethylethyl)sulfinyl]amino]-3-hydroxy-8-azaspiro[4.5]decane-8-carboxylate (CAS 1801766-52-8)
- 2′-[Bis(1,1-dimethylethyl)phosphino]-N,N-dimethyl-6-(1-methylethyl)[1,1′-biphenyl]-2-amine (CAS 908238-91-5)
- 2-[7-(1,1-Dimethylethyl)-1-pyrenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 942506-80-1)
- 3′-O-[(1,1-Dimethylethyl)dimethylsilyl]-2′-O-methyluridine (CAS 171268-84-1)
- 1,1-Dimethylethyl (2R,4R)-2-(hydroxymethyl)-4-[[(4-methylphenyl)sulfonyl]oxy]-1-pyrrolidinecarboxylate (CAS 2769141-49-1)
- 2-(1,1-dimethylethyl)-4-(3-hydroxypropoxy)-6-(5-methoxy-2H-benzotriazol-2-yl)-phenol (CAS 114289-79-1)
Recommended Standards
- 1-(6-(Tritylamino)pyridin-3-yl)ethan-1-one (CAS 49647-11-2)
- 2-((2-Oxo-2-(4-(3-phenyl-1,2,4-thiadiazol-5-yl)piperazin-1-yl)ethyl)thio)acetic acid (CAS 681136-34-5)
- (3,4-Diaminothieno[2,3-b]thiophene-2,5-diyl)bis(phenylmethanone) (CAS 3686-10-0)
- 3-Cyclopentyl-10-(3,4-dimethoxyphenyl)-7-methyl-1,3,8,12-tetraazatricyclo[7.3.0.0^{2,6}]dodeca-2(6),7,9,11-tetraene (CAS 860650-34-6)
- 3-Phenyl-4-({[3-(trifluoromethyl)phenyl]amino}methylidene)-4,5-dihydro-1H-pyrazol-5-one (CAS 338975-63-6)
- 3-[(dimethylamino)methyl]benzoic acid hydrochloride (CAS 79965-34-7)
- (6-fluoro-4H-1,3-benzodioxin-8-yl)methylamine hydrochloride (CAS 859833-12-8)
- 10-(2-Nitrophenyl)-2,3,7,10-tetrahydro-[1,4]dioxino[2,3-g]furo[3,4-b]quinolin-9(6H)-one (CAS 900019-89-8)
- 4-Amino-3-methoxyphenol (CAS 61638-01-5)
- Benzyl ((1-(2-hydroxyethyl)pyrrolidin-2-yl)methyl)carbamate (CAS 1353984-51-6)
- 1-(9Z-hexadecenoyl)-sn-glycero-3-phosphocholine (CAS 76790-27-7)
- N-(3-Hydroxypyridin-4-yl)pivalamide (CAS 169205-93-0)
- 4-Chloro-6-(3-methylpiperazin-1-yl)pyrimidine hydrochloride (CAS 1289385-13-2)
- Delta-Sleep Inducing Peptide (CAS 62568-57-4)
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