3-Chloro-4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-2-amine CAS 149978-64-3
| CAS No. | 149978-64-3 |
| Molecular Formula | C7H10ClN3 |
| Molecular Weight | 171.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 171.63 g/mol gives 3-Chloro-4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-2-amine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3-Chloro-4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-2-amine (CAS 149978-64-3), a certified reference material (molecular formula C7H10ClN3, MW 171.63 g/mol) for analytical method development and quality control.
The molecular framework of 3-Chloro-4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-2-amine (C7H10ClN3) is characterized by a nitrile group, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C7H10ClN3 |
| Molecular Weight | 171.63 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 1007-55-2 6-Chloro-N-isopropylpyridazin-3-amine 7262AC C7H10ClN3 (CAS 1007-55-2)
- 2-Chloro-N4-ethylpyridine-3,4-diamine (CAS 1025509-12-9)
- 5-Chloro-6-ethyl-2-methylpyrimidin-4-amine (CAS 1196151-23-1)
- 4-Chloro-5-isopropylpyrimidin-2-amine (CAS 1201657-30-8)
- 2-Chloro-5-(propan-2-yl)pyrimidin-4-amine (CAS 1201657-31-9)
- 4-Chloro-1-(pyrrolidin-3-yl)-1H-pyrazole (CAS 1249269-25-7)
- 5-Chloro-2-isopropylpyrimidin-4-amine (CAS 125647-50-9)
- 2-Chloro-6-isopropylpyrimidin-4-amine (CAS 1258288-61-7)
Recommended Standards
- 3-Chloro-N,5,6-trimethylpyrazin-2-amine (CAS 1494256-01-7)
- 3-Chloro-5,6,7,8-tetrahydroimidazo[1,2-a]pyridin-6-amine (CAS 1508935-88-3)
- 5-(chloromethyl)-3-cyclopropyl-1-methyl-1H-1,2,4-triazole (CAS 145578-19-4)
- 5-CHloro-n-propylpyrimidin-2-amine (CAS 1538515-91-1)
- 3-Formimidamidophenethyl oxazole-4-carboxylate (CAS 88584-19-4)
- N-((2S,3R,4R,5S,6R)-2-(4-chlorophenoxy)-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)acetamide (CAS 50730-05-7)
- Ethenamine, 2-(4-bromo-2-nitrophenyl)-n,n-dimethyl- (CAS 78508-22-2)
- 3-[(3-Chloro-4-methoxyphenyl)methyl]-6,7-dimethoxy-2-{[(2-methylphenyl)methyl]sulfanyl}-3,4-dihydroquinazolin-4-imine (CAS 478249-80-8)
- (tert-Butyldimethylsilyloxy)malononitrile (CAS 128302-78-3)
- 8-Methoxy-3-nitroimidazo[1,2-a]pyrazine (CAS 193614-78-7)
- (S)-1-((2-Nitrophenyl)sulfonyl)piperidin-3-amine hydrochloride (CAS 1187928-80-8)
- 1-(4,6-Dimethylpyrimidin-2-yl)-3-(pyridin-3-ylmethyl)guanidine (CAS 675153-67-0)
- (2E)-3-[3-(3,4-Dimethoxyphenyl)-1-phenyl-1H-pyrazol-4-yl]-2-phenylprop-2-enenitrile (CAS 956166-18-0)
- Semaglutide impurity 48 (CAS CATO-C4X-222648)
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