Tert-butyl (R)-3-amino-6-methyl-6,7-dihydropyrazolo[1,5-a]pyrazine-5(4H)-carboxylate CAS 2227197-95-5
| CAS No. | 2227197-95-5 |
| Molecular Formula | C12H20N4O2 |
| Molecular Weight | 252.31 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.
CATO supplies Tert-butyl (R)-3-amino-6-methyl-6,7-dihydropyrazolo[1,5-a]pyrazine-5(4H)-carboxylate (CAS 2227197-95-5), a certified reference material (molecular formula C12H20N4O2, MW 252.31 g/mol) for analytical method development and quality control.
Based on its molecular formula C12H20N4O2, Tert-butyl (R)-3-amino-6-methyl-6,7-dihydropyrazolo[1,5-a]pyrazine-5(4H)-carboxylate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 252.31 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).
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 | C12H20N4O2 |
| Molecular Weight | 252.31 g/mol |
| Appearance | Off-white to pale 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 4 |
Recommended Standards
- tert-Butyl (4-(2-aminoethoxy)phenyl)carbamate (CAS 522602-23-9)
- Tert-butyl (S)-3-amino-6-methyl-6,7-dihydropyrazolo[1,5-a]pyrazine-5(4H)-carboxylate (CAS 2227197-81-9)
- Tert-butyl (3R,4S)-3-amino-4-(1H-pyrazol-1-yl)pyrrolidine-1-carboxylate (CAS 2173998-88-2)
- tert-Butyl 2-(2-cyanoacetyl)piperidine-1-carboxylate (CAS 887592-68-9)
- 2-(4-Aminophenyl)cyclopropane-1-carboxylic acid (CAS 99060-12-5)
- 4H-Pyrrolo[2,3-d]oxazole-5-carboxylic acid (CAS 1041421-52-6)
- 2-Bromononane (CAS 2216-35-5)
- METHYL 1-(METHOXYMETHYL)-1H-PYRAZOLE-3-CARBOXYLATE (CAS 1263283-05-1)
- 2-(4-Methoxy-3-methylphenyl)pentan-2-ol (CAS 1443305-05-2)
- (11aR)-10,11,12,13-Tetrahydro-N,N-bis(1-methylethyl)diindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-amine (CAS 500997-67-1)
- Methyl 4-(((3-(4-fluorophenyl)-5-thioxo-1H-1,2,4-triazol-4(5H)-yl)imino)methyl)benzoate (CAS 578746-67-5)
- 3-Chloro-4-(indolin-1-yl)aniline (CAS 937608-38-3)
- 4-[[(4-Phenyl-1-piperazinyl)imino]methyl]-1,3-benzenediol (CAS 306953-58-2)
- Hexapeptide-9 (CAS 1228371-11-6)
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